Common problems · Mercedes-Benz

Mercedes-Benz C-Class common problems and recalls

12 sourced problems across the C-Class's generations since 2012, plus 138 DVSA recalls. Enter a registration to see the ones that apply to your exact car.

Free · no signup · recalls, MOT data and researched problems

C-Class (W206) (2021 on)

Acknowledged by the manufacturer

Recalls, extended warranties, compensation schemes, service actions and statements.

None that we hold for this generation.

Reported by owners and the motoring press

Problems at least two independent publishers report, that the maker has not acknowledged. They describe the model, not every car.

Reported by 2 publishersEngine
If it has the OM642 3.0 V6 diesel (350 CDI / 350 d / 3.0 CDI vans): 3.0 V6 diesel: oil leak from hardened oil-cooler seals
The 3.0 V6 diesel's oil cooler sits in the middle of the V, and its rubber seals can harden with heat and let oil out. The leak shows as oil under the car or at the bottom of the gearbox bell housing and is often misdiagnosed as a rear crankshaft seal. The repair means removing the turbo and intake parts to reach the cooler, so it is labour-heavy. Mercedes moved to an upgraded seal material around 2010, which made the leak less common but did not end it.
Applies to: Cars and vans with the OM642 3.0 V6 diesel (E/S/M/GL/GLE/GLS/CLS/G 350 CDI or 350 d, Sprinter and Viano 3.0 CDI); less common on engines built after about 2010
5 sources

DVSA recalls for the C-Class (W206)

Listed by DVSA for this model during these build years. Not every car is affected — check yours by VIN on GOV.UK.

The behaviour of the emergency call system might not meet specificationsR/2021/376 · 29/11/2021
The behaviour of the emergency call system might not meet specifications.
Remedy: Update the software of the communication module for the emergency call system.
Listed for: CLA(118), E-CLASS COUPE/CONVERTIBLE, GLA, E-CLASS, A CLASS (177), GLC, M/GLE/GL/GLS-CLASS, C-CLASS, SL 231, CLS(218), E… · built 2016–2021
On affected vehicles the fuel pump impeller might not meet specifications and may deform.R/2023/223 · 29/08/2023
On affected vehicles the fuel pump impeller might not meet specifications and may deform.
Remedy: Replace the fuel pump module.
Listed for: E-CLASS, S-CLASS, C-CLASS, AMG GT, GLC, G CLASS, GLE/GLS(167), CLS, SL · built 2021–2023
Software of the communication module may not correspond with the specificationsR/2022/300 · 26/10/2022
The software of the communication module may not correspond with the specifications.
Remedy: Update the software of the communication module in the affected vehicles.
Listed for: SL, C-CLASS, S-CLASS, EQE, EQS · built 2021
The overhead control panel might be deactivated permanently due to a software errorR/2022/112 · 25/04/2022
The overhead control panel under certain circumstances might be deactivated permanently due to a software error.
Remedy: Update the software of the overhead control panel.
Listed for: S-CLASS, C-CLASS · built 2021

Show 44 more

SRPC2401 - System protectionR/2024/130 · 25/03/2024
On certain vehicles some 80A fuses installed might not meet requirements.
Remedy: Replace the respective main fuse boxes on the affected vehicles.
Listed for: AMG GT, C-CLASS, E-CLASS, S-CLASS, CLE, GLC, EQE SUV, EQS SUV, SL · built 2023
Water ingress into the trunk and therefore moisture might enter into the signal acquisition and actuation moduleR/2022/290 · 24/10/2022
Moisture may ingress into the signal acquisition module.
Remedy: Retro fit a cover to the signal acquisition module.
Listed for: C-CLASS · built 2021–2022
The belt tensioner arm may have been manufactured with borderline toleranceR/2021/304 · 23/09/2021
The belt tensioner arm may have been manufactured with borderline tolerance.
Remedy: Replace the belt tensioner. Additionally check the v-ribbed belt on the affected vehicles and replace it if necessary.
Listed for: C-CLASS, E-CLASS, GLE, GLC · built 2019–2021
On affected vehicles the left brake hose on the rear axle might not have been installed according to specifications.R/2023/308 · 22/11/2023
On affected vehicles the left brake hose on the rear axle might not have been installed according to specifications.
Remedy: Check the brake hose and replace if necessary.
Listed for: C-CLASS · built 2023
On certain vehicles the automatic transmission might have been filled with too much transmission oilR/2022/040 · 22/02/2022
On certain vehicles the automatic transmission might have been filled with too much transmission oil.
Remedy: Check the oil level of the transmission on the affected vehicles and adjust it if necessary.
Listed for: C-CLASS · built 2022
Coolant pump might have a leakage between the vacuum system and the coolant circuitR/2021/438 · 21/01/2022
On certain vehicles with a Diesel engine the coolant pump which is controlled by vacuum might have a leakage between the vacuum system and the coolant circuit.
Remedy: Update the software of the coolant pump and replace the electrical switch valve on the affected vehicles.
Listed for: E-CLASS, CLS, S-CLASS, GLC, E-CLASS COUPE/CONVERTIBLE, C-CLASS, G CLASS, GLE/GLS(167) · built 2017–2021
The fixation of the rear headrests might not meet specificationsR/2021/223 · 20/07/2021
The fixation of the rear headrests might not meet specifications.
Remedy: Check the guide sleeves on the rear seats of the potentially affected vehicles and replace them if necessary.
Listed for: C-CLASS CONVERTIBLE, E-CLASS COUPE/CONVERTIBLE · built 2021
SRPC2410 – Bolting Connection Pre-Fuse BoxR/2024/281 · 19/08/2024
On affected vehicles the bolting of an electrical wire on the pre-fuse box in the passenger-side footwell might have not been tightened with sufficient torque.
Remedy: Check the bolting connection of the wiring harness to the pre-fuse box and repair if necessary.
Listed for: C-CLASS · built 2021–2022
The software of the rear signal acquisition and actuation module might not meet specificationsR/2022/117 · 16/05/2022
The software of the rear signal acquisition and actuation module might not meet specifications.
Remedy: Update the software of the signal acquisition and actuation module on the affected vehicles.
Listed for: C-CLASS, S-CLASS · built 2020–2022
The configuration of the mbux system might not meet specificationsR/2022/018 · 16/02/2022
On certain vehicles with an active and connected Mercedes me connect account the configuration of the MBUX system might not meet specifications.
Remedy: Update the configuration of the MBUX system on affected vehicles.
Listed for: EQS, S-CLASS, C-CLASS · built 2020–2021
SRPC2413 - Screw connections of 12 V and 48 V ground pointsR/2024/299 · 15/08/2024
On affected vehicles the bolts of certain 12V and 48V ground connections might be fastened with an insufficient torque.
Remedy: Check connections and repair if necessary.
Listed for: C-CLASS · built 2021
On affected vehicles the bolts of certain 12V and 48V ground connections might be fastened with an insufficient torque.R/2023/229 · 14/08/2023
On affected vehicles the bolts of certain 12V and 48V ground connections might be fastened with an insufficient torque.
Remedy: Check the bolting of the ground connections and repair if necessary.
Listed for: C-CLASS · built 2021–2022
On affected vehicles the bolts of certain 12V and 48V ground connections might be fastened with an insufficient torque.R/2023/230 · 14/08/2023
On affected vehicles the bolts of certain 12V and 48V ground connections might be fastened with an insufficient torque.
Remedy: Check the bolting of the ground connections and repair if necessary.
Listed for: C-CLASS · built 2021–2023
Mercedes-Benz AG has determined that on certain C-Class (206 platform) vehicles the bolts of certain 12V and 48V ground connections might be fastened with an insufficient torque.R/2023/231 · 14/08/2023
On affected vehicles the bolts of certain 12V and 48V ground connections might be fastened with an insufficient torque.
Remedy: Check the bolting of the ground connections and repair if necessary.
Listed for: C-CLASS · built 2021–2022
SRPC2407 – Battery Pole CoverR/2024/202 · 14/05/2024
On affected vehicles the cover for a pole of the 12V battery might not be installed.
Remedy: Check whether the battery positive pole covers have been installed and if necessary install it.
Listed for: C-CLASS · built 2021
The behaviour of the emergency call system might not meet specificationsR/2021/110 · 13/05/2021
The behaviour of the emergency call system might not meet specifications.
Remedy: Update the software of the communication module for the emergency call system.
Listed for: A CLASS, B CLASS(242), CLS, SLK/SLC, A CLASS (177), EQC, B CLASS (246), E-CLASS, CLA, AMG GT, E-CLASS COUPE, AMG GT COU… · built 2016–2021
On affected vehicles the bolting of the 48V ground connection in the engine compartment might not be sufficiently tightened.R/2023/056 · 13/03/2023
On affected vehicles the bolting of the 48V ground connection in the engine compartment might not be sufficiently tightened.
Remedy: Check the bolting of the ground connection and correct if necessary.
Listed for: C-CLASS · built 2019–2021
The configuration of the mbux system might not meet specifications.R/2021/434 · 12/01/2022
On certain vehicles with an active and connected Mercedes me connect account the configuration of the MBUX system might not meet specifications.
Remedy: A remote update of the configuration of the MBUX system will be conducted without the need for a workshop visit.
Listed for: EQS, C-CLASS, S-CLASS · built 2020–2021
The behaviour of the emergency call system might not meet specificationsR/2021/120 · 11/05/2021
The behaviour of the emergency call system might not meet specifications.
Remedy: Update the software of the communication module for the emergency call system.
Listed for: GLE, G CLASS, E-CLASS COUPE/CONVERTIBLE, B CLASS/GLA/GLB, B CLASS(242), AMG GT, A CLASS (177), CLS(218), M/GLE/GL/GLS-C… · built 2016–2021
SRPC2338 -Rear-Axle Wiring HarnessR/2024/125 · 11/04/2024
On affected vehicles the rear-axle wiring harness might be pre-damaged due to a fixing which might not meet specifications.
Remedy: Check and replace the rear-axle wiring harness if necessary.
Listed for: C-CLASS · built 2023
On affected vehicles the inflation of the front passenger airbag might not meet specifications.R/2023/151 · 10/07/2023
On affected vehicles the inflation of the front passenger airbag might not meet specifications.
Remedy: Replace the front passenger airbag.
Listed for: C-CLASS · built 2021–2022
The behaviour of the emergency call system might not meet specificationsR/2021/111 · 10/05/2021
The behaviour of the emergency call system might not meet specifications.
Remedy: Update the software of the communication module for the emergency call system.
Listed for: GLA, CLS(218), S-CLASS COUPE/CONVERTABLE, GLC, A CLASS (177), AMG GT COUPE, GLE COUPE, CLA(118), SL 231, B CLASS/GLA/GL… · built 2016–2021
The software of the engine control unit might not meet specificationsR/2022/019 · 10/02/2022
On certain vehicles the software of the engine control unit might not meet specifications.
Remedy: Conduct an update the software of the engine control unit on the affected vehicles.
Listed for: GLE/GLS(167), CLS, C-CLASS, E-CLASS COUPE/CONVERTIBLE, E-CLASS · built 2020–2021
SRPC2512 - Bolting of Steering CouplingR/2025/333 · 08/09/2025
Mercedes-Benz AG has determined that on certain C-Class (206 platform) GLC (254 platform) and EQE (295 platform) vehicles the bolting of the steering coupling might not meet specifications.
Remedy: As a remedy Mercedes-Benz AG via its Mercedes-Benz service partners will rework the bolting of the steering coupling on the affected vehicles.
Listed for: C-CLASS, GLC, EQE · built 2022–2025
The holding force of the fuel feed line may not correspond with the specificationsR/2022/301 · 07/11/2022
The holding force of the fuel feed line may not correspond with the specifications.
Remedy: Check the fuel line on the affected vehicles and replace it if necessary.
Listed for: C-CLASS · built 2021–2022
A weld seam of the supporting structure of the transmission connection may not correspond with the specificationsR/2022/302 · 07/11/2022
A weld seam of the supporting structure of the transmission connection may not correspond with the specifications.�
Remedy: Check the transmission connection on the affected vehicles and replace it if necessary.�
Listed for: C-CLASS · built 2022
SRPC2506 - Driver seat belt fittingR/2025/158 · 07/05/2025
Mercedes-Benz AG has determined that on certain C-Class (206 platform) vehicles the safety cap of the seatbelt end fitting on the driver seat might not be installed correctly.
Remedy: As a remedy Mercedes-Benz AG via its Mercedes-Benz service partners will check the safety cap of the seat belt end fitting on the affected vehicles and rework it if necessary.
Listed for: C CLASS · built 2023–2024
The engine control unit wiring harness might come in contact with the engine hoodR/2022/251 · 06/09/2022
The engine control unit wiring harness might come in contact with the engine hood.
Remedy: Check the routing of the engine control unit wiring harness and correct it if necessary.
Listed for: C-CLASS · built 2021
A nozzle inside the suction jet pump in the fuel tank might not have been installed or fixed inside the pump according to specificationsR/2021/340 · 05/11/2021
A nozzle inside the suction jet pump in the fuel tank might not have been installed or fixed inside the pump according to specifications.
Remedy: Conduct a check of the fuel system on the affected vehicles and replace the fuel tank including the suction jet pump if necessary.
Listed for: S-CLASS, C-CLASS · built 2021
Vehicles might be equipped with an incorrect variant of the tyre pressure label in the tank flapR/2022/225 · 05/08/2022
Vehicles might be equipped with an incorrect variant of the tyre pressure label in the tank flap.
Remedy: The tyre pressure label is to be replaced.
Listed for: C-CLASS · built 2021
The emergency call system might not meet specificationsR/2021/129 · 05/05/2021
The behaviour of the emergency call system might not meet specifications.
Remedy: Update the software of the communication module for the emergency call system.
Listed for: E-CLASS, GLE, C-CLASS, E-CLASS COUPE/CONVERTIBLE, GLC · built 2016–2021
The behaviour of the emergency call system might not meet specificationsR/2021/131 · 05/05/2021
The behaviour of the emergency call system might not meet specifications.
Remedy: Update the software of the communication module for the emergency call system.
Listed for: SL CLASS, GLA, E-CLASS, G CLASS, AMG GT COUPE, CLS(218), S-CLASS COUPE/CONVERTIBLE, AMG GT, E-CLASS COUPE/CONVERTIBLE,… · built 2016–2021
The behaviour of the emergency call system might not meet specificationsR/2021/132 · 05/05/2021
The behaviour of the emergency call system might not meet specifications.
Remedy: Update the software of the communication module for the emergency call system.
Listed for: EQC, CLS(218), SLK/SLC, C-CLASS, S-CLASS COUPE/CONVERTIBLE, CLA(118), GLE/GLS(167), E-CLASS COUPE/CONVERTIBLE, B CLASS… · built 2016–2021
The emergency call system might not meet specificationsR/2021/133 · 05/05/2021
The behaviour of the emergency call system might not meet specifications.
Remedy: Update the software of the communication module for the emergency call system.
Listed for: G CLASS, GLC, AMG GT COUPE, M/GLE/GL/GLS-CLASS, A CLASS (177), GLA, GLE/GLS(167), GLE COUPE, S-CLASS COUPE/CONVERTIBLE,… · built 2016–2021
The behaviour of the emergency call system might not meet specificationsR/2021/134 · 05/05/2021
The behaviour of the emergency call system might not meet specifications.
Remedy: Update the software of the communication module for the emergency call system.
Listed for: B CLASS(242), GLA, E-CLASS, SL CLASS, GLE COUPE, CLS(257), S-CLASS COUPE/CONVERTIBLE, A CLASS (177), C-CLASS, CLA(117),… · built 2016–2021
SRPC2419 Misfire Detection M264R/2024/474 · 04/12/2024
The software of the engine control unit might not meet specifications regarding misfire detection.
Remedy: Mercedes-Benz AG via its Mercedes-Benz service partners will update the software of the engine control unit on the affected vehicles.
Listed for: GLC, CLS, C-CLASS, E-CLASS · built 2021–2023
On affected vehicles the cable lug of the 48V ground connection in the engine compartment might not be fixed correctly.R/2023/246 · 04/09/2023
On affected vehicles the cable lug of the 48V ground connection in the engine compartment might not be fixed correctly.�
Remedy: Check the bolting of the ground connection on the affected vehicles and repair if necessary
Listed for: C-CLASS · built 2019–2023
On affected vehicles the length of the transmission wiring harness might not meet specifications..R/2023/225 · 03/11/2023
On affected vehicles the length of the transmission wiring harness might not meet specifications.
Remedy: Check transmission wiring harness routing and rework if necessary.
Listed for: C-CLASS · built 2022
The software of the communication module might not meet specificationsR/2022/032 · 03/03/2022
On certain vehicles the software of the communication module might not meet specifications.
Remedy: As a precautionary measure update the software of the communication module on the affected vehicles. This software update is planned to be performed over-the-air with no workshop visit being required.
Listed for: EQS, EQE, S-CLASS, C-CLASS, SL · built 2021
Welding between fuel filler pipe and fuel tank might not meet specificationsR/2023/260 · 02/10/2023
On affected vehicles the welding between fuel filler pipe and fuel tank might not meet specifications.
Remedy: Replace the fuel tank.
Listed for: C-CLASS · built 2021
The software of the communication module might not meet specificationsR/2022/030 · 02/03/2022
On certain vehicles the software of the communication module might not meet specifications.
Remedy: As a precautionary measure update the software of the communication module on the affected vehicles. This software update is planned to be performed over-the-air with no workshop visit being required.
Listed for: EQS, C-CLASS, S-CLASS · built 2021
The behaviour of the emergency call system might not meet specificationsR/2021/106 · 01/12/2021
The behaviour of the emergency call system might not meet specifications.
Remedy: Update the software of the communication module for the emergency call system.
Listed for: M/GLE/GL/GLS-CLASS, C-CLASS, E-CLASS, GLC, S-CLASS, CLA, GLA · built 2016–2021
The behaviour of the emergency call system might not meet specificationsR/2021/107 · 01/12/2021
The behaviour of the emergency call system might not meet specifications.
Remedy: Update the software of the communication module for the emergency call system.
Listed for: C-CLASS, E-CLASS, GLA, AMG GT, GLC · built 2016–2021
The behaviour of the emergency call system might not meet specificationsR/2021/130 · 01/12/2021
The behaviour of the emergency call system might not meet specifications.
Remedy: Update the software of the communication module for the emergency call system.
Listed for: G CLASS, GLC, CLA(117), M/GLE/GL/GLS-CLASS, E-CLASS, SL, GLE, C-CLASS, GLA · built 2016–2021

C-Class (W205, saloon, estate, coupe, cabriolet) (2014–2021)

Acknowledged by the manufacturer

Recalls, extended warranties, compensation schemes, service actions and statements.

None that we hold for this generation.

Reported by owners and the motoring press

Problems at least two independent publishers report, that the maker has not acknowledged. They describe the model, not every car.

Reported by 2 publishersEmissions, DPF & AdBlue
Diesel: DPF, NOx sensor and AdBlue faults
Diesel C-Classes of this generation are reported to suffer faults in the emissions system: a blocked diesel particulate filter (DPF), failed NOx or other exhaust-gas sensors, and AdBlue system faults. Short-trip use makes the DPF side worse. Owners report the sensors failing at relatively low mileage, and replacing them is not cheap.
Applies to: C-Class W205 (2014–2021) with a diesel engine
2 sources
- Parkers — Used Mercedes-Benz C-Class Saloon (2014 - 2021) Review
- What Car? — Used Mercedes C-Class 2014-2021 review - reliability & common problems
Reported by 2 publishersFuel system
Petrol smell from a loose or porous fuel line
A smell of petrol on a petrol C-Class of this generation is usually a loose or porous fuel line from the fuel pump. It is often worse from cold. It is a relatively cheap fix, quoted at around £150, but should be put right.
Applies to: C-Class W205 (2014–2021) with a petrol engine
2 sources
- Autocar — Nearly-new buying guide: Mercedes-Benz C-Class (W205)
- Parkers — Used Mercedes-Benz C-Class Saloon (2014 - 2021) Review
Reported by 3 publishersInterior
Creaks from the dashboard, sunroof and door seals
Owners of this C-Class report creaks and rattles from the dashboard, roof lining, sunroof and door seals or door cards. It is an annoyance rather than a mechanical fault, but it is worth listening for on a test drive over rough roads.
Applies to: C-Class W205 (2014–2021), all engines
3 sources
Reported by 3 publishersScreen, sat-nav & audio
Infotainment: slow, freezing screen and faulty touchpad
The infotainment on this C-Class draws complaints: the entry Audio 20 navigation is described as very slow, the COMAND system can freeze, and the touchpad and centre-console switches can play up. Software and map updates help. Check every function on a test drive.
Applies to: C-Class W205 (2014–2021), all engines
DVLA does not record which infotainment system (Audio 20 or COMAND) a car has, so this shows for every W205 C-Class.
3 sources
Reported by 2 publishersEngine
Plastic air-intake parts can crack with age
Plastic parts of the air intake on this C-Class can crack as they age, which can upset idle and running. Autocar names the plastic inlet manifold, alongside a leaking plastic fuel-filter housing, in its notes on the 220d diesel. Parkers lists cracked plastic air inlets and failing crankcase-ventilation valves among the W205's engine weak points.
Applies to: C-Class W205 (2014–2021); Autocar ties the inlet-manifold crack to the 220d diesel
2 sources
- Autocar — Nearly-new buying guide: Mercedes-Benz C-Class (W205)
- Parkers — Used Mercedes-Benz C-Class Saloon (2014 - 2021) Review
Reported by 2 publishersCooling
If it has the M274 1.6 / 2.0 turbo petrol: Petrol: early thermostat failure, labour-heavy to replace
Some 1.6 and 2.0 turbo petrol C-Classes of this generation have had the thermostat fail early. The engine may run cool or the temperature gauge may behave oddly. The part itself is cheap, but it is hard to reach, so the labour bill can be large.
Applies to: C-Class W205 (2014–2021) with the 1.6 or 2.0 turbo petrol engine
2 sources
- Autocar — Nearly-new buying guide: Mercedes-Benz C-Class (W205)
- Parkers — Used Mercedes-Benz C-Class Saloon (2014 - 2021) Review
Reported by 2 publishersEngine
If it has the OM642 3.0 V6 diesel (350 CDI / 350 d / 3.0 CDI vans): 3.0 V6 diesel: oil leak from hardened oil-cooler seals
The 3.0 V6 diesel's oil cooler sits in the middle of the V, and its rubber seals can harden with heat and let oil out. The leak shows as oil under the car or at the bottom of the gearbox bell housing and is often misdiagnosed as a rear crankshaft seal. The repair means removing the turbo and intake parts to reach the cooler, so it is labour-heavy. Mercedes moved to an upgraded seal material around 2010, which made the leak less common but did not end it.
Applies to: Cars and vans with the OM642 3.0 V6 diesel (E/S/M/GL/GLE/GLS/CLS/G 350 CDI or 350 d, Sprinter and Viano 3.0 CDI); less common on engines built after about 2010
5 sources

DVSA recalls for the C-Class (W205, saloon, estate, coupe, cabriolet)

Listed by DVSA for this model during these build years. Not every car is affected — check yours by VIN on GOV.UK.

Steering control may be affectedR/2014/113 · 30/09/2014
It is possible that the steering column coupling lock may not have been installed correctly. The driver will recieve warning of the issue by noise. However in extreme circumstances it is possible that steering control of the vehicle could be affected.
Remedy: Recall all affected vehicles to check and if required replace the steering coupling.
Listed for: C CLASS · built 2014
Right side of front seat backrests may not lock into placeR/2018/146 · 30/07/2018
The seat backrests on the right side of the front seats in the c-class Coupe/Convertible and E-Class Coupe/Convertible may not fully lock.
Remedy: As a precautionary measure the lock of the seat backrest on affected vehicles will be check for operation. Where necessary the backrest will be replaced.
Listed for: E-CLASS, C-CLASS · built 2017–2018
Front seats may not be secured acording to specificationR/2015/149 · 30/07/2015
The threaded connections to the rear of the front seats may not have been tightened correctly. In the case of a serious vehicle accident the seat connection may not function as designed resulting in an elevated risk of injury to the occupants.
Remedy: Recall the vehicles that are likely to be affected to check and where necessary correct the torque of the connections at the rear of the front seats.
Listed for: C CLASS, E CLASS · built 2014
The communication module may be deactivatedR/2021/082 · 30/03/2021
The communication module may be deactivated
Remedy: Carry out a check of the configuration of the communication module on affected vehicles and if necessary activate the communication module.
Listed for: CLA, GLA, B CLASS, B CLASS/GLA/GLB, GLC, C-CLASS, A CLASS, SLK/SLC, E-CLASS, GLE/GLS, S-CLASS · built 2016–2020

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The software of certain communication modules may not meet specificationsR/2021/083 · 30/03/2021
The software of certain communication modules may not meet specifications.
Remedy: Carry out an update to the software of the communication module on affected vehicles.
Listed for: SLK/SLC, E-CLASS, CLS, SLK, GLC, C-CLASS, GLA, A CLASS, SL · built 2017–2020
Flammable vapour may igniteR/2016/298 · 30/01/2017
The threaded connection on the Adblue filler pipe and ground cable for the fuel tank access may not be correctly tightened on vehicles with diesel engine OM651. It is possible for the connection to work loose and fail thereby causing the possibility of an electrostatic discharge. In extreme conditions there is a possi…
Remedy: Recall the vehicles that are likely to be affected to check and where necessary correct the connection of the Adblue filler pipe and ground cable.
Listed for: C CLASS · built 2015
The behaviour of the emergency call system might not meet specificationsR/2021/376 · 29/11/2021
The behaviour of the emergency call system might not meet specifications.
Remedy: Update the software of the communication module for the emergency call system.
Listed for: CLA(118), E-CLASS COUPE/CONVERTIBLE, GLA, E-CLASS, A CLASS (177), GLC, M/GLE/GL/GLS-CLASS, C-CLASS, SL 231, CLS(218), E… · built 2016–2021
On affected vehicles the fuel pump impeller might not meet specifications and may deform.R/2023/223 · 29/08/2023
On affected vehicles the fuel pump impeller might not meet specifications and may deform.
Remedy: Replace the fuel pump module.
Listed for: E-CLASS, S-CLASS, C-CLASS, AMG GT, GLC, G CLASS, GLE/GLS(167), CLS, SL · built 2021–2023
The electronic stability program control unit software may not match the current specificationR/2019/022 · 29/03/2019
The ESP control unit may not be initialised as intended during the start-up process.
Remedy: The affected vehicles are to be recalled and ESP control unit software updated.
Listed for: C-CLASS · built 2017–2018
The lock status of the steering coupling was not correctly documentedR/2019/004 · 29/01/2019
The lock status of the steering coupling was not correctly documented following assembly.
Remedy: As a precautionary measure on affected vehicles the lock status of the steering coupling will be determined and reworked if necessary.
Listed for: C-CLASS, E-CLASS · built 2018
Diodes on the rectifier bridge of the alternator might failR/2021/241 · 27/07/2021
Diodes on the rectifier bridge of the alternator might fail.
Remedy: Update the engine control unit software with an optimised alternator control strategy on the affected vehicles.
Listed for: C-CLASS · built 2014–2018
Steering coupling may become looseR/2017/134 · 27/04/2017
The threaded connection for the steering column coupling to the steering rack pinion may not be tightened correctly. Overtime time the connection could loosen and fall out allowing a situation where the steering control could be lost.
Remedy: Recall the vehicles that are likely to be affected and check the tightness of the threaded connection for the steering column coupling. Where necessary the joint will be removed and inspected. If not…
Listed for: C-CLASS · built 2013–2014
Software of the communication module may not correspond with the specificationsR/2022/300 · 26/10/2022
The software of the communication module may not correspond with the specifications.
Remedy: Update the software of the communication module in the affected vehicles.
Listed for: SL, C-CLASS, S-CLASS, EQE, EQS · built 2021
Right front seat belt pre-tensioner may not meet specificationR/2017/253 · 26/10/2017
The right front seat belt pretensioner may not conform to specification . This may adversely affect it's operation in the event of an accident.
Remedy: Replace the pretensioner on affected vehicles.
Listed for: S-CLASS, C-CLASS, GLC, E-CLASS COUPE · built 2016–2017
The data documenting the correct mounting of the turbocharger oil feed as well as the oil return line may be missingR/2020/225 · 25/08/2020
The HV battery pack can overheat and result in the venting of hot gas which can ignite vehicle components or in extreme cases the entire vehicle.
Remedy: To prevent a vehicle fire the vehicles should not be charged using the external charging cable and the vehicles should only be driven using the default Auto EV mode only
Listed for: S-CLASS, GLC, E-CLASS, C-CLASS, CLS · built 2018–2020
The overhead control panel might be deactivated permanently due to a software errorR/2022/112 · 25/04/2022
The overhead control panel under certain circumstances might be deactivated permanently due to a software error.
Remedy: Update the software of the overhead control panel.
Listed for: S-CLASS, C-CLASS · built 2021
Water ingress into the trunk and therefore moisture might enter into the signal acquisition and actuation moduleR/2022/290 · 24/10/2022
Moisture may ingress into the signal acquisition module.
Remedy: Retro fit a cover to the signal acquisition module.
Listed for: C-CLASS · built 2021–2022
A particle in the fuel rail might lead to a leak between the fuel rail and the injectorR/2022/061 · 24/03/2022
A particle in the fuel rail might lead to a leak between the fuel rail and the fuel injector.�
Remedy: Replace the fuel rail and fuel injectors on the affected vehicles.�
Listed for: GLC, CLA(118), A CLASS, G CLASS, C-CLASS, E-CLASS, E-CLASS COUPE/CONVERTIBLE, AMG GT 4 DOOR COUPE · built 2018–2019
The belt tensioner arm may have been manufactured with borderline toleranceR/2021/304 · 23/09/2021
The belt tensioner arm may have been manufactured with borderline tolerance.
Remedy: Replace the belt tensioner. Additionally check the v-ribbed belt on the affected vehicles and replace it if necessary.
Listed for: C-CLASS, E-CLASS, GLE, GLC · built 2019–2021
Passenger airbag may not function as intendedR/2015/120 · 23/07/2015
On affected vehicles a control unit under the front passenger seat may not have been correctly installed. This may adversely affect the seat occupancy recognition system.The seat occupancy recognition system may not correctly identify seat occupancy and may incorrectly activate or deactivate the air bag. Activation st…
Remedy: Check control unit installation and correct if necessary. Where necessary replace passenger seat cushion.
Listed for: C CLASS · built 2013–2014
Individual bolts or chain links of the camshaft timing chain might wearR/2022/116 · 23/05/2022
Individual bolts or chain links of the camshaft timing chain might wear in case of a long term operation under specific driving conditions.
Remedy: Replace the camshaft timing chain on the affected vehicles
Listed for: E-CLASS, C-CLASS, E-CLASS COUPE/CONVERTIBLE · built 2016–2019
Risk of fireR/2016/032 · 23/03/2016
The threaded connection of the battery ground may not be tightened correctly due to deviation in the tightening angle monitoring. In the event of a poor ground of the battery line a temporarily higher transition resistance could lead to the formation of sparks and local heating. This would increase the risk of fire.
Remedy: Recall the vehicles that are likely to be affected and check the ground connection of the battery line and if necessary replace the ground connection.
Listed for: C CLASS · built 2014
On certain vehicles the routing of an electric cable in the engine compartment might not meet specificationsR/2022/049 · 22/03/2022
On certain vehicles the routing of an electric cable in the engine compartment might not meet specifications.
Remedy: Check the cable routing on the affected vehicles and correct it if necessary.
Listed for: C-CLASS · built 2017–2019
Axle mounting may breakR/2017/301 · 21/11/2017
Under extreme starting conditions (such as full throttle) on wet road surfaces AND with repeated short term rear wheel spin strong torque peaks in the powertrain may occur.This may cause an axle mounting flange to break and possible loss of drive.
Remedy: On affected vehicles update the ESP and chassis control units.
Listed for: C-CLASS AMG · built 2014–2016
The left rear seat backrest lock may not meet specificationsR/2020/197 · 21/08/2020
The left rear seat backrest lock might not meet the specifications
Remedy: Replace the left rear seat backrest lock on the affected vehicles.
Listed for: GLC, EQC, C-CLASS, E-CLASS, AMG GT COUPE · built 2020
Incorrect underfloor panelling installedR/2018/204 · 21/08/2018
Incorrect engine undertray fitted.
Remedy: Check and replace engine undertray on affected vehicles.
Listed for: C-CLASS, E-CLASS · built 2018
The mounting bolts of the turbocharger oil return line and the crank case ventilation line might have been interchangedR/2019/160 · 21/06/2019
The mounting bolts of the turbocharger oil return line might have been interchanged
Remedy: Replace the mounting bolts
Listed for: C-CLASS · built 2018–2019
Coolant pump might have a leakage between the vacuum system and the coolant circuitR/2021/438 · 21/01/2022
On certain vehicles with a Diesel engine the coolant pump which is controlled by vacuum might have a leakage between the vacuum system and the coolant circuit.
Remedy: Update the software of the coolant pump and replace the electrical switch valve on the affected vehicles.
Listed for: E-CLASS, CLS, S-CLASS, GLC, E-CLASS COUPE/CONVERTIBLE, C-CLASS, G CLASS, GLE/GLS(167) · built 2017–2021
Risk of fireR/2015/259 · 21/01/2016
The high pressure fuel lines have not been manufactured to the correct specification which over time can lead to crack formation and fuel leaking. Fuel escaping in the presence of an ignition source could lead to fire.
Remedy: Recall the vehicles that are likely to be affected and replace the high pressure fuel lines.
Listed for: E CLASS, C CLASS, A CLASS, CLS, B CLASS, SLK-CLASS, GLA, CLA, SLC · built 2015
Vehicles with a panoramic sunroofthe polycarbonate panel may not have been bonded correctly during a prior service repairR/2021/274 · 20/08/2021
The polycarbonate panel located between the windshield and the panoramic sunroof may not have been bonded correctly during a prior service repair.
Remedy: Remove the bonded panel and install a new polycarbonate panel if required.
Listed for: C-CLASS, GLC, GLA, S-CLASS, GLE COUPE, CLA(117), A CLASS(176) · built 2013–2019
The fixation of the rear headrests might not meet specificationsR/2021/223 · 20/07/2021
The fixation of the rear headrests might not meet specifications.
Remedy: Check the guide sleeves on the rear seats of the potentially affected vehicles and replace them if necessary.
Listed for: C-CLASS CONVERTIBLE, E-CLASS COUPE/CONVERTIBLE · built 2021
Starting current limiter may overloadR/2017/096 · 20/06/2017
Where the car incurs severe engine damage resulting in the engine failing to turn over (engine seizure) and if the driver repeatedly attempts to start the engine despite the engine not cranking the very high electrical current could lead to overheating of the starting current limiter and the potential for a fire.
Remedy: Recall the vehicles that are likely to be affected and install an additional fuse in the electrical line to the starter.
Listed for: A CLASS, GLA, GLC, E-CLASS, CLA, B CLASS, C-CLASS · built 2014–2017
On affected vehicles the aluminium bolts of the steering gear could corrode and break due to the intrusion of moisture.R/2023/023 · 20/02/2023
On affected vehicles the aluminium bolts of the steering gear could corrode and break due to the intrusion of moisture.
Remedy: Replace the steering gear mounting bolts on the affected vehicles with steel bolts. Should the bolts break or already be broken change the steering gear.
Listed for: E-CLASS, GLE, C-CLASS, CLS, ML, GLC, GLS, S-CLASS, GL, GLK · built 2010–2017
Engine may failR/2015/210 · 19/11/2015
The camshaft could break and damage the engine due to it not being manufactured to the correct specification. If the condition occurs it will lead to a sudden loss of drive thereby increasing the risk of a collision.
Remedy: Recall the vehicles that are likely to be affected and replace the exhaust camshaft.
Listed for: B CLASS, C CLASS, GLA, SLK-CLASS, CLA, E CLASS, A CLASS · built 2015
To improve emissions of the affected vehicles.certain calibrations of functionalities must be changed in the engine managementR/2018/266 · 19/10/2018
Improve the vehicle emissions via software updates.
Remedy: Update the diesel engine control unit software and add a supplementary booklet for the operator's manual
Listed for: GLC, GLE, C-CLASS, S-CLASS · built 2013–2018
SRPC2410 – Bolting Connection Pre-Fuse BoxR/2024/281 · 19/08/2024
On affected vehicles the bolting of an electrical wire on the pre-fuse box in the passenger-side footwell might have not been tightened with sufficient torque.
Remedy: Check the bolting connection of the wiring harness to the pre-fuse box and repair if necessary.
Listed for: C-CLASS · built 2021–2022
Engine may stallR/2015/081 · 19/05/2015
It is possible on certain petrol (gasoline) vehicles that the mounting hooks for the jet pump may not have been manufactured to specification. The jet pump is mounted on top of the fuel delivery module in the fuel tank and if the mounting hooks were to fail it will result in the jet pump detaching from the module and…
Remedy: Recall all likely to be affected vehicles to install an additional clip to the jet pump.
Listed for: C CLASS · built 2014
Faulty control unit may cause vehicle to perform outside specificationR/2017/124 · 19/04/2017
Where a control unit coding was updated in a workshop between 3 December 2016 and 5 December 2016 the coding may not correspond to the specification and may trigger unplanned action in the vehicle. The safety and emissions systems may not react as design intent.
Remedy: Recall the vehicles that are likely to be affected and update the software in the corresponding control units.
Listed for: E-CLASS, M CLASS, C-CLASS, CLA, CL CLASS, GLA, CLS, S CLASS, SLK, GLC · built 2004–2017
Electrical wiring in steering assembly may be insufficiently groundedR/2017/282 · 18/12/2017
The steering column clock spring may break. This will cause warning messages to illuminate in the instrument cluster but in extreme instances it may cause the driver's airbag to deploy.
Remedy: Affected vehicles will be recalled to establish sufficient grounding of the steering components.
Listed for: CLA, GLC, C-CLASS, A CLASS, B CLASS, GLA · built 2011–2017
The software of the radar control unit may not meet specificationR/2019/269 · 18/09/2019
; The software of the radar control unit might not meet the specification
Remedy: Update the software of the radar sensor control unit on the affected vehicles.
Listed for: S-CLASS, GLE, B CLASS, GLB, CLA, E-CLASS, AMG GT, C-CLASS, A CLASS, CLS · built 2017–2019
The dimension of the brake discs on the front axle may be too smallR/2020/084 · 17/07/2020
The dimension of the brake discs installed on the front axle might be too small.
Remedy: Replace the brake discs on the affected vehicles.
Listed for: C-CLASS · built 2018–2019
The heat shield installed at the turbocharger may not meet the specificationR/2020/137 · 17/07/2020
The heat shield installed at the turbocharger may not meet the specification
Remedy: Replace the heat shield on the affected vehicles
Listed for: C-CLASS · built 2019
A reset in the cpc control unit could occur whilst drivingR/2019/108 · 17/04/2019
The ECO Start-Stop function may be disabled and cause the vehicle to stall.
Remedy: The affected vehicles are to be recalled and the software updated.
Listed for: A CLASS, CLS, C-CLASS, E-CLASS, S-CLASS · built 2016–2018
The bolting of the high voltage battery to the vehicle body in the luggage compartment might not meet specificationsR/2021/249 · 16/07/2021
The bolting of the high-voltage battery to the vehicle body in the luggage compartment might not meet specifications.
Remedy: Check the bolting of the high-voltage battery to the vehicle body on the affected vehicles and rework if necessary.
Listed for: C-CLASS · built 2020
The software of the rear signal acquisition and actuation module might not meet specificationsR/2022/117 · 16/05/2022
The software of the rear signal acquisition and actuation module might not meet specifications.
Remedy: Update the software of the signal acquisition and actuation module on the affected vehicles.
Listed for: C-CLASS, S-CLASS · built 2020–2022
A lock nut may be cracked in the steering gearR/2019/092 · 16/04/2019
A lock nut may be cracked in the steering gear.
Remedy: The electric power steering is to be checked and if necessary replaced.
Listed for: E-CLASS, C-CLASS · built 2017–2018
The configuration of the mbux system might not meet specificationsR/2022/018 · 16/02/2022
On certain vehicles with an active and connected Mercedes me connect account the configuration of the MBUX system might not meet specifications.
Remedy: Update the configuration of the MBUX system on affected vehicles.
Listed for: EQS, S-CLASS, C-CLASS · built 2020–2021
Oil may leakR/2014/182 · 16/01/2015
On certain diesel engines the 'O' ring may not have been produced to the correct specification. This may allow oil to leak and contaminate the environment. If excessive oil is lost engine damage may occur.
Remedy: On affected vehicles replace the chain tensioner sealing ring.
Listed for: A CLASS, GLA, B CLASS, E CLASS, C CLASS, M CLASS, SLK-CLASS, CLS, CLA · built 2014
An electric line in the engine compartment may have been routed outside of the specificationR/2018/254 · 15/10/2018
An electric line in the engine compartment may have been routed outside of the specification.
Remedy: Check the routing of the wiring harness at the prefuse box in the engine compartment and correct if necessary.
Listed for: C-CLASS · built 2014–2018
SRPC2413 - Screw connections of 12 V and 48 V ground pointsR/2024/299 · 15/08/2024
On affected vehicles the bolts of certain 12V and 48V ground connections might be fastened with an insufficient torque.
Remedy: Check connections and repair if necessary.
Listed for: C-CLASS · built 2021
On affected vehicles the bolts of certain 12V and 48V ground connections might be fastened with an insufficient torque.R/2023/229 · 14/08/2023
On affected vehicles the bolts of certain 12V and 48V ground connections might be fastened with an insufficient torque.
Remedy: Check the bolting of the ground connections and repair if necessary.
Listed for: C-CLASS · built 2021–2022
On affected vehicles the bolts of certain 12V and 48V ground connections might be fastened with an insufficient torque.R/2023/230 · 14/08/2023
On affected vehicles the bolts of certain 12V and 48V ground connections might be fastened with an insufficient torque.
Remedy: Check the bolting of the ground connections and repair if necessary.
Listed for: C-CLASS · built 2021–2023
Mercedes-Benz AG has determined that on certain C-Class (206 platform) vehicles the bolts of certain 12V and 48V ground connections might be fastened with an insufficient torque.R/2023/231 · 14/08/2023
On affected vehicles the bolts of certain 12V and 48V ground connections might be fastened with an insufficient torque.
Remedy: Check the bolting of the ground connections and repair if necessary.
Listed for: C-CLASS · built 2021–2022
Laser welding between backrest rail and backrest metal fitting of front seats may not meet specificationR/2018/158 · 14/08/2018
It has been determined that on certain C-Class (205) and E-Class (213) Cars with AMG performance seats the laser welding between the backrest rail and the backrest metal fitting of the driver or passenger seat might not meet the specification. The laser welding between the backrest member and the backrest metal fittin…
Remedy: As a precautionary measure recall the affected vehicles and check the backrest member and replace if necessary
Listed for: E-CLASS, C-CLASS · built 2017–2018
Driver's airbag gas generator housing failure during deploymentR/2018/168 · 14/08/2018
On affected vehicles it has been determined that drivers airbags with potentially faulty gas generator housing material may have been installed in vehicles of model series 156 176 246 205 238 & 253. If the material of the gas generator housing fails during airbag deployment in the event of a crash the airbag system wo…
Remedy: On affected vehicles replace the driver�s airbag
Listed for: E-CLASS, A CLASS, C-CLASS, GLC, GLA · built 2018
SRPC2407 – Battery Pole CoverR/2024/202 · 14/05/2024
On affected vehicles the cover for a pole of the 12V battery might not be installed.
Remedy: Check whether the battery positive pole covers have been installed and if necessary install it.
Listed for: C-CLASS · built 2021
Vehicle may shut downR/2015/083 · 14/05/2015
Due to a software code error it is possible that the 1.6ltr 4 cylinder diesel engines may suffer a stalling situation during the warm-up phase and where the engine is subjected to high load requirements. However if the engine does stall it can be immediately restarted and the vehicle can be driven without restrictions…
Remedy: Recall all affected vehicles to update the engine control unit software.
Listed for: C CLASS · built 2014–2015
The headlight adjustment may not meet the specificationR/2020/286 · 13/11/2020
The headlight adjustment might not meet the specification
Remedy: Check the headlight adjustment on the affected vehicles and correct it if necessary.
Listed for: C-CLASS · built 2018–2019
The behaviour of the emergency call system might not meet specificationsR/2021/110 · 13/05/2021
The behaviour of the emergency call system might not meet specifications.
Remedy: Update the software of the communication module for the emergency call system.
Listed for: A CLASS, B CLASS(242), CLS, SLK/SLC, A CLASS (177), EQC, B CLASS (246), E-CLASS, CLA, AMG GT, E-CLASS COUPE, AMG GT COU… · built 2016–2021
On affected vehicles the bolting of the 48V ground connection in the engine compartment might not be sufficiently tightened.R/2023/056 · 13/03/2023
On affected vehicles the bolting of the 48V ground connection in the engine compartment might not be sufficiently tightened.
Remedy: Check the bolting of the ground connection and correct if necessary.
Listed for: C-CLASS · built 2019–2021
The spring damper software may not meet specificationsR/2020/047 · 12/03/2020
The spring damper software might not meet specification affecting level sensors and headlight range.
Remedy: Replace the spring damper control unit on affected vehicles.
Listed for: C-CLASS · built 2015
The configuration of the mbux system might not meet specifications.R/2021/434 · 12/01/2022
On certain vehicles with an active and connected Mercedes me connect account the configuration of the MBUX system might not meet specifications.
Remedy: A remote update of the configuration of the MBUX system will be conducted without the need for a workshop visit.
Listed for: EQS, C-CLASS, S-CLASS · built 2020–2021
Electrical wiring in steering assembly may be insufficiently groundedR/2018/130 · 11/06/2018
The steering column clock spring may break. This will cause warning messages to illuminate in the instrument cluster but in extreme instances it may cause the driver's airbag to deploy.
Remedy: Affected vehicles will be recalled to establish sufficient grounding of the steering components
Listed for: GLC, GLA, B CLASS, CLA, A CLASS, C-CLASS · built 2011–2017
The behaviour of the emergency call system might not meet specificationsR/2021/120 · 11/05/2021
The behaviour of the emergency call system might not meet specifications.
Remedy: Update the software of the communication module for the emergency call system.
Listed for: GLE, G CLASS, E-CLASS COUPE/CONVERTIBLE, B CLASS/GLA/GLB, B CLASS(242), AMG GT, A CLASS (177), CLS(218), M/GLE/GL/GLS-C… · built 2016–2021
Steering components may be insufficiently groundedR/2018/098 · 11/05/2018
It has been determined that the steering airbag electrical components are insufficiently grounded. Failure of the steering column module clock spring could result in an inadvertent deployment of the driver airbag which may cause risk of injury to the driver and an increased risk of a potential collision.
Remedy: On affected vehicles the manufacturer will fit a contact bridge to the outer race of the steering column top bearing which will provide correct grounding.
Listed for: GLC, A CLASS, C-CLASS, B CLASS, CLA, GLA · built 2011–2017
The engine control unit software nay not meet specificationsR/2020/201 · 10/09/2020
The engine control unit software might not meet the specifications.
Remedy: Update the diesel engine control unit software on the affected vehicles.
Listed for: AMG GT, C-CLASS · built 2014–2017
On affected vehicles the inflation of the front passenger airbag might not meet specifications.R/2023/151 · 10/07/2023
On affected vehicles the inflation of the front passenger airbag might not meet specifications.
Remedy: Replace the front passenger airbag.
Listed for: C-CLASS · built 2021–2022
The behaviour of the emergency call system might not meet specificationsR/2021/111 · 10/05/2021
The behaviour of the emergency call system might not meet specifications.
Remedy: Update the software of the communication module for the emergency call system.
Listed for: GLA, CLS(218), S-CLASS COUPE/CONVERTABLE, GLC, A CLASS (177), AMG GT COUPE, GLE COUPE, CLA(118), SL 231, B CLASS/GLA/GL… · built 2016–2021
The software of the engine control unit might not meet specificationsR/2022/019 · 10/02/2022
On certain vehicles the software of the engine control unit might not meet specifications.
Remedy: Conduct an update the software of the engine control unit on the affected vehicles.
Listed for: GLE/GLS(167), CLS, C-CLASS, E-CLASS COUPE/CONVERTIBLE, E-CLASS · built 2020–2021
The software of the ESP control unit may not meet the specificationsR/2020/239 · 09/10/2020
The software of the ESP control unit might not meet the specifications.
Remedy: Update the software for the ESP control unit on the affected vehicles.
Listed for: GLC, C-CLASS, AMG GT · built 2018–2019
Incorrect software specification for the steering column switch moduleR/2018/205 · 09/08/2018
Software of switch module incorrect specification
Remedy: Update software of affected vehicles
Listed for: C-CLASS · built 2017–2018
Electrical wiring in steering assembly may be insufficiently groundedR/2018/154 · 09/07/2018
The steering column clock spring may break. This will cause warning messages to illuminate in the instrument cluster but in extreme instances it may cause the driver's airbag to deploy
Remedy: .Affected vehicles will be recalled to be checked to ensure there is sufficient grounding of the steering components.
Listed for: E-CLASS, C-CLASS · built 2011–2017
Electrical wiring in steering assembly may be insufficiently groundedR/2018/055 · 09/04/2018
The steering column clock spring may break. This will cause warning messages to illuminate in the instrument cluster but in extreme instances it may cause the driver's airbag to deploy.
Remedy: Affected vehicles will be recalled to establish sufficient grounding of the steering components.
Listed for: GLC, C-CLASS · built 2011–2017
Electrical wiring in steering assembly may be insufficiently groundedR/2018/069 · 09/04/2018
The steering column clock spring may break. This will cause warning messages to illuminate in the instrument cluster but in extreme instances it may cause the driver's airbag to deploy.
Remedy: Affected vehicles will be recalled to establish sufficient grounding of the steering components.
Listed for: C-CLASS, GLC, GLA, CLA, B CLASS, A CLASS · built 2011–2017
Electric power steering motor defectiveR/2017/159 · 08/06/2017
Contacts inside the electric power steering motor may not have been correctly formed. Failure of these contacts would cause the loss of power steering assistance.If this happens a warning lamp will illuminate
Remedy: Replace the electric power steering motor on affected vehicles.
Listed for: C-CLASS, E-CLASS · built 2014–2016
Software update to improve emissionsR/2019/077 · 08/05/2019
Improve the vehicle emissions via software updates.
Remedy: Update the diesel engine control unit software and add a supplementary booklet for the operator's manual.
Listed for: C-CLASS · built 2014–2018
The status of the front passenger airbags displayed in the centre console might not be indicated correctlyR/2019/007 · 08/03/2019
The status of the front passenger airbags displayed in the centre console might not be indicated correctly.
Remedy: The affected vehicles head unit software will be updated
Listed for: GLC, C-CLASS · built 2017–2018
The holding force of the fuel feed line may not correspond with the specificationsR/2022/301 · 07/11/2022
The holding force of the fuel feed line may not correspond with the specifications.
Remedy: Check the fuel line on the affected vehicles and replace it if necessary.
Listed for: C-CLASS · built 2021–2022
Side restraint system may not function as intendedR/2015/121 · 07/07/2015
The threaded connection of the crash sensors at the B-pillars may not be to specification. There is a possibility that the side restraint system may trigger too late or not at all in the event of a side impact which may pose an increased risk of injury for the vehicle occupants.
Remedy: Recall the vehicles that are likely to be affected to check and where necessary correct the threaded connection of the crash sensors at both the left and right B-pillars.
Listed for: C CLASS · built 2014
The connection of the gas lines of the inertisation system might not meet specificationsR/2021/121 · 07/05/2021
The connection of the gas lines of the inertisation system might not meet specifications.
Remedy: Check and if necessary rework the gas lines of the inertisation system.
Listed for: GLC, C-CLASS · built 2016–2020
On affected vehicles the panel located between the windshield and the panoramic sunroof might not have been bonded correctly during a prior service repair.R/2024/024 · 07/02/2024
On affected vehicles the panel located between the windshield and the panoramic sunroof might not have been bonded correctly during a prior service repair.
Remedy: Check the front fixed element of the panoramic sliding sunroof and replace if necessary.
Listed for: GLA, GLC, S-CLASS, CLA(117), A CLASS, C-CLASS · built 2012–2018
Engine control unit software to be updatedR/2020/243 · 06/10/2020
Improve the vehicle emissions via software updates.
Remedy: Update the relevant control unit�s software and if necessary replace the NOx sensors.
Listed for: E-CLASS, S-CLASS, GLS, ML/GLE, C-CLASS, CLS, SLK, SLC, GLC, GLE COUPE · built 2011–2018
The seat belt warning function does not meet the specificationR/2020/240 · 06/10/2020
The seat belt warning function does not meet the specification
Remedy: Activate the correct seat belt warning scenario in the instrument cluster
Listed for: E-CLASS COUPE, AMG GT, S-CLASS, E-CLASS, C-CLASS, CLS · built 2016–2019
THE EMERGENCY CALL SYSTEM (eCall) DOES NOT MEET THE SPECIFICATIONR/2020/236 · 06/10/2020
On affected vehicles the software of the communication module for the emergency call system does not meet the specification
Remedy: Update the software of the communication module for the emergency call system
Listed for: E-CLASS, G CLASS, C-CLASS, GLC, S-CLASS, AMG GT, CLS, B CLASS, SL, SLC, CLA, GLA, A CLASS · built 2017–2018
The engine control unit wiring harness might come in contact with the engine hoodR/2022/251 · 06/09/2022
The engine control unit wiring harness might come in contact with the engine hood.
Remedy: Check the routing of the engine control unit wiring harness and correct it if necessary.
Listed for: C-CLASS · built 2021
The crankshaft may exhibit surface damagesR/2019/253 · 06/09/2019
The durability of the crankshaft might be impaired.
Remedy: Replace the engine on affected vehicles.
Listed for: C-CLASS, E-CLASS, A CLASS (177), GLC · built 2019
Fuel may leakR/2016/190 · 06/09/2016
A high pressure fuel line to the fuel pump may work looses and allow diesel to leak
Remedy: On affected vehicles replace fuel line
Listed for: C CLASS · built 2013–2016
Front seat belt tensioners may not functionR/2018/010 · 06/02/2018
The front seatbelt pre-tensioner ignitors may not perform as expected. This could increase the risk of injury to the seat occupants. The lock function of the seatbelts is not impaired.
Remedy: On affected vehicles replace seatbelts with quality assured units.
Listed for: S-CLASS, C-CLASS, GLC, E-CLASS COUPE · built 2016–2017
A nozzle inside the suction jet pump in the fuel tank might not have been installed or fixed inside the pump according to specificationsR/2021/340 · 05/11/2021
A nozzle inside the suction jet pump in the fuel tank might not have been installed or fixed inside the pump according to specifications.
Remedy: Conduct a check of the fuel system on the affected vehicles and replace the fuel tank including the suction jet pump if necessary.
Listed for: S-CLASS, C-CLASS · built 2021
The tie rod may not be correctly mounted to the right front axle stubR/2019/338 · 05/11/2019
The mechanical connection between tie rod and right front axle stub might not be ensured.
Remedy: Replace the tie rod of the right front axle on the affected vehicles.
Listed for: C-CLASS · built 2019
Vehicles might be equipped with an incorrect variant of the tyre pressure label in the tank flapR/2022/225 · 05/08/2022
Vehicles might be equipped with an incorrect variant of the tyre pressure label in the tank flap.
Remedy: The tyre pressure label is to be replaced.
Listed for: C-CLASS · built 2021
The emergency call system might not meet specificationsR/2021/129 · 05/05/2021
The behaviour of the emergency call system might not meet specifications.
Remedy: Update the software of the communication module for the emergency call system.
Listed for: E-CLASS, GLE, C-CLASS, E-CLASS COUPE/CONVERTIBLE, GLC · built 2016–2021
The behaviour of the emergency call system might not meet specificationsR/2021/131 · 05/05/2021
The behaviour of the emergency call system might not meet specifications.
Remedy: Update the software of the communication module for the emergency call system.
Listed for: SL CLASS, GLA, E-CLASS, G CLASS, AMG GT COUPE, CLS(218), S-CLASS COUPE/CONVERTIBLE, AMG GT, E-CLASS COUPE/CONVERTIBLE,… · built 2016–2021
The behaviour of the emergency call system might not meet specificationsR/2021/132 · 05/05/2021
The behaviour of the emergency call system might not meet specifications.
Remedy: Update the software of the communication module for the emergency call system.
Listed for: EQC, CLS(218), SLK/SLC, C-CLASS, S-CLASS COUPE/CONVERTIBLE, CLA(118), GLE/GLS(167), E-CLASS COUPE/CONVERTIBLE, B CLASS… · built 2016–2021
The emergency call system might not meet specificationsR/2021/133 · 05/05/2021
The behaviour of the emergency call system might not meet specifications.
Remedy: Update the software of the communication module for the emergency call system.
Listed for: G CLASS, GLC, AMG GT COUPE, M/GLE/GL/GLS-CLASS, A CLASS (177), GLA, GLE/GLS(167), GLE COUPE, S-CLASS COUPE/CONVERTIBLE,… · built 2016–2021
The behaviour of the emergency call system might not meet specificationsR/2021/134 · 05/05/2021
The behaviour of the emergency call system might not meet specifications.
Remedy: Update the software of the communication module for the emergency call system.
Listed for: B CLASS(242), GLA, E-CLASS, SL CLASS, GLE COUPE, CLS(257), S-CLASS COUPE/CONVERTIBLE, A CLASS (177), C-CLASS, CLA(117),… · built 2016–2021
SRPC2419 Misfire Detection M264R/2024/474 · 04/12/2024
The software of the engine control unit might not meet specifications regarding misfire detection.
Remedy: Mercedes-Benz AG via its Mercedes-Benz service partners will update the software of the engine control unit on the affected vehicles.
Listed for: GLC, CLS, C-CLASS, E-CLASS · built 2021–2023
On affected vehicles the cable lug of the 48V ground connection in the engine compartment might not be fixed correctly.R/2023/246 · 04/09/2023
On affected vehicles the cable lug of the 48V ground connection in the engine compartment might not be fixed correctly.�
Remedy: Check the bolting of the ground connection on the affected vehicles and repair if necessary
Listed for: C-CLASS · built 2019–2023
Left front seat belt pre-tensioner may not meet specificationR/2017/147 · 04/09/2017
The propellant mix in certain seatbelt pre-tensioners ignitors may be incorrect. If the front seatbelt pre-tensioners are deployed the lock function of the pre-tensioners cannot be guaranteed.
Remedy: Recall the vehicles that are likely to be affected and replace the front seatbelts that are likely to be affected.
Listed for: E-CLASS, GLC, S CLASS, C-CLASS · built 2016–2017
Certain front seat belt buckles may not have been manufactured according to specificationR/2019/372 · 03/08/2020
A correctly fastened seat belt could be detected as not fastened impairing the restraint system
Remedy: Check the relevant seat belt buckles in the affected vehicles and replace if necessary
Listed for: G CLASS, AMG GT, C-CLASS, GLC, CLS, E-CLASS · built 2018
An internal sensor within the electric power steering unit may not have been manufactured to specificationsR/2019/043 · 03/05/2019
An internal sensor within the electric power steering unit might not have been manufactured according to specifications.
Remedy: The affected vehicles are to have the steering unit replaced.
Listed for: E-CLASS, GLC, C-CLASS · built 2018
The software of the communication module might not meet specificationsR/2022/032 · 03/03/2022
On certain vehicles the software of the communication module might not meet specifications.
Remedy: As a precautionary measure update the software of the communication module on the affected vehicles. This software update is planned to be performed over-the-air with no workshop visit being required.
Listed for: EQS, EQE, S-CLASS, C-CLASS, SL · built 2021
The high voltage wiring harness shield may not permanently withstand the electrical loads that are induced under certain driving profilesR/2020/334 · 02/12/2020
The shield for the high-voltage wiring harness may not permanently withstand the electrical loads that are induced under certain driving profiles
Remedy: Replace the high-voltage wiring harness on the affected vehicles
Listed for: C-CLASS, GLC, GLE/GLS, E-CLASS · built 2018–2020
The wiring harness of the steering control unit may not have been manufactured to specificationR/2020/333 · 02/12/2020
The wiring harness of the steering control unit might not have been manufactured according to specification.
Remedy: Check the wiring harness of the steering control unit on the affected vehicles and replace it if necessary.
Listed for: GLC, EQC, C-CLASS · built 2019–2020
Welding between fuel filler pipe and fuel tank might not meet specificationsR/2023/260 · 02/10/2023
On affected vehicles the welding between fuel filler pipe and fuel tank might not meet specifications.
Remedy: Replace the fuel tank.
Listed for: C-CLASS · built 2021
Switches in certain seat belt buckles may not have been manufactured to specificationsR/2019/040 · 02/05/2019
The switches in certain seat belt buckles might not have been manufactured according to specifications.
Remedy: The affected seat belt buckles are to be replaced.
Listed for: C-CLASS, S-CLASS, E-CLASS · built 2018
The software of the communication module might not meet specificationsR/2022/030 · 02/03/2022
On certain vehicles the software of the communication module might not meet specifications.
Remedy: As a precautionary measure update the software of the communication module on the affected vehicles. This software update is planned to be performed over-the-air with no workshop visit being required.
Listed for: EQS, C-CLASS, S-CLASS · built 2021
Electrical wiring in steering assembly may be insufficiently groundedR/2018/006 · 02/02/2018
The steering column clock spring may break. This will cause warning messages to illuminate in the instrument cluster but in extreme instances it may cause the driver's airbag to deploy.
Remedy: Affected vehicles will be recalled to establish sufficient grounding of the steering components.
Listed for: E-CLASS, C-CLASS · built 2011–2017
The behaviour of the emergency call system might not meet specificationsR/2021/106 · 01/12/2021
The behaviour of the emergency call system might not meet specifications.
Remedy: Update the software of the communication module for the emergency call system.
Listed for: M/GLE/GL/GLS-CLASS, C-CLASS, E-CLASS, GLC, S-CLASS, CLA, GLA · built 2016–2021
The behaviour of the emergency call system might not meet specificationsR/2021/107 · 01/12/2021
The behaviour of the emergency call system might not meet specifications.
Remedy: Update the software of the communication module for the emergency call system.
Listed for: C-CLASS, E-CLASS, GLA, AMG GT, GLC · built 2016–2021
The behaviour of the emergency call system might not meet specificationsR/2021/130 · 01/12/2021
The behaviour of the emergency call system might not meet specifications.
Remedy: Update the software of the communication module for the emergency call system.
Listed for: G CLASS, GLC, CLA(117), M/GLE/GL/GLS-CLASS, E-CLASS, SL, GLE, C-CLASS, GLA · built 2016–2021
Bonding of the rear beltline trim strips may not be to specificationR/2018/231 · 01/10/2018
Bonding of the rear beltline trim strips may not correspond to the specifications.
Remedy: Check the trim strips of the affected vehicles and replace them if necessary.
Listed for: C-CLASS · built 2016–2017
Oil may leakR/2015/150 · 01/09/2015
On affected vehicles the transmission oil cooler return pipe may not have been mounted correctly. It is possible vibration may cause the pipe to fail and leak oil.
Remedy: Correctly mount oil cooler pipes.
Listed for: C CLASS · built 2014
A lock nut may be cracked in the steering gearR/2019/089 · 01/04/2019
A lock nut may be cracked in the steering gear.
Remedy: The electric power steering is to be checked and if necessary replaced.
Listed for: C-CLASS, E-CLASS · built 2015–2018

Measured at MOT: how a 2018 C-Class fails more often

Based on 72,746 first MOT tests of this model at 8 years old (cars first used 2016–2017), compared against every car of the same age and fuel.

Nothing stands out. No category fails clearly more often on this model than on cars of the same age and fuel.

How to read this

These are MOT outcomes for other cars of the same model, age and fuel — not a prediction about this one, and not a fault diagnosis. A high rate means the category is worth checking, not that this car has a problem.

A comparison is only shown where it survives its own margin of error. Where a model is only slightly above average, both rates are shown and no multiple is given, because the data cannot tell the difference.

MOT results reflect how a car has been used and maintained as much as the model itself. High mileage, short journeys and deferred servicing all show up here.

Contains public sector information licensed under the Open Government Licence v3.0. Failure rates derived by FindServiceHistory from the DVSA anonymised MOT test and failure-item extracts.

C-Class (W204) (2007–2014)

Acknowledged by the manufacturer

Recalls, extended warranties, compensation schemes, service actions and statements.

None that we hold for this generation.

Reported by owners and the motoring press

Problems at least two independent publishers report, that the maker has not acknowledged. They describe the model, not every car.

Reported by 2 publishersGearbox
Automatic: harsh shifts or a clunk from a faulty gearbox valve
On cars with the seven-speed 7G-Tronic automatic, harsh or jerky gearchanges or a clunk are usually caused by a faulty valve in the gearbox. Left alone it can damage the gearbox, and putting it right can cost thousands.
Applies to: C-Class W204 (2007–2014) with the seven-speed 7G-Tronic automatic
DVLA does not record the gearbox, so this shows for every W204 — it only applies to cars with the seven-speed automatic (some earlier cars had a five-speed automatic, and manuals were sold too).
2 sources
- What Car? — Used Mercedes-Benz C-Class 2007 - 2014 review - reliability & common problems
- Parkers — Used Mercedes-Benz C-Class Saloon (2007 - 2014) Review – W204 known faults and common problems
Reported by 2 publishersElectrics
Moisture and condensation getting into the headlamps
Water and condensation can get into the headlamps. Lamps fitted after the facelift are less prone to it, but it is worth checking any car.
Applies to: C-Class W204 (2007–2014), mainly before the facelift
Parkers names the xenon headlamps; DVLA does not record which headlamps are fitted.
2 sources
- What Car? — Used Mercedes-Benz C-Class 2007 - 2014 review - reliability & common problems
- Parkers — Used Mercedes-Benz C-Class Saloon (2007 - 2014) Review – W204 known faults and common problems
Reported by 2 publishersBody & corrosion
Rust around the boot lid
Corrosion can appear around the boot, most often along the edge of the boot lid near the release handle, and is becoming more common as these cars age.
Applies to: C-Class W204 (2007–2014)
2 sources
- What Car? — Used Mercedes-Benz C-Class 2007 - 2014 review - reliability & common problems
- Parkers — Used Mercedes-Benz C-Class Saloon (2007 - 2014) Review – W204 known faults and common problems
Reported by 2 publishersBody & corrosion
Noisy power-folding door mirrors
The power-folding door mirrors can become noisy. Sometimes a cheap internal part cures it, but a complete mirror is expensive to replace.
Applies to: C-Class W204 (2007–2014) with power-folding mirrors
Only cars with power-folding mirrors; DVLA does not record the option.
2 sources
- What Car? — Used Mercedes-Benz C-Class 2007 - 2014 review - reliability & common problems
- Parkers — Used Mercedes-Benz C-Class Saloon (2007 - 2014) Review – W204 known faults and common problems
Reported by 2 publishersInterior
Leather and part-leather seats wear badly
The interior does not wear well where leather is fitted, and the seats, particularly with part-leather trim, can burst their stitching around the seat bases.
Applies to: C-Class W204 (2007–2014) with leather or part-leather trim
Upholstery depends on trim and options; DVLA does not record it.
2 sources
- What Car? — Used Mercedes-Benz C-Class 2007 - 2014 review - reliability & common problems
- Parkers — Used Mercedes-Benz C-Class Saloon (2007 - 2014) Review – W204 known faults and common problems
Reported by 2 publishersEngine
If it has the OM642 3.0 V6 diesel (350 CDI / 350 d / 3.0 CDI vans): 3.0 V6 diesel: oil leak from hardened oil-cooler seals
The 3.0 V6 diesel's oil cooler sits in the middle of the V, and its rubber seals can harden with heat and let oil out. The leak shows as oil under the car or at the bottom of the gearbox bell housing and is often misdiagnosed as a rear crankshaft seal. The repair means removing the turbo and intake parts to reach the cooler, so it is labour-heavy. Mercedes moved to an upgraded seal material around 2010, which made the leak less common but did not end it.
Applies to: Cars and vans with the OM642 3.0 V6 diesel (E/S/M/GL/GLE/GLS/CLS/G 350 CDI or 350 d, Sprinter and Viano 3.0 CDI); less common on engines built after about 2010
5 sources

DVSA recalls for the C-Class (W204)

Listed by DVSA for this model during these build years. Not every car is affected — check yours by VIN on GOV.UK.

Steering control may be affectedR/2014/113 · 30/09/2014
It is possible that the steering column coupling lock may not have been installed correctly. The driver will recieve warning of the issue by noise. However in extreme circumstances it is possible that steering control of the vehicle could be affected.
Remedy: Recall all affected vehicles to check and if required replace the steering coupling.
Listed for: C CLASS · built 2014
Front seats may not be secured acording to specificationR/2015/149 · 30/07/2015
The threaded connections to the rear of the front seats may not have been tightened correctly. In the case of a serious vehicle accident the seat connection may not function as designed resulting in an elevated risk of injury to the occupants.
Remedy: Recall the vehicles that are likely to be affected to check and where necessary correct the torque of the connections at the rear of the front seats.
Listed for: C CLASS, E CLASS · built 2014
Engine may cut outR/2012/159 · 29/01/2013
Cracks in the charge air hose may possibly occur. This may subsequently lead to the engine switching to limp-home mode. In rare individual cases the engine shutting off cannot be ruled out.
Remedy: Recall the vehicles that are likely to be affected to replace the charge air hose.
Listed for: C CLASS, E CLASS · built 2011
Diodes on the rectifier bridge of the alternator might failR/2021/241 · 27/07/2021
Diodes on the rectifier bridge of the alternator might fail.
Remedy: Update the engine control unit software with an optimised alternator control strategy on the affected vehicles.
Listed for: C-CLASS · built 2014–2018

Show 43 more

Steering coupling may become looseR/2017/134 · 27/04/2017
The threaded connection for the steering column coupling to the steering rack pinion may not be tightened correctly. Overtime time the connection could loosen and fall out allowing a situation where the steering control could be lost.
Remedy: Recall the vehicles that are likely to be affected and check the tightness of the threaded connection for the steering column coupling. Where necessary the joint will be removed and inspected. If not…
Listed for: C-CLASS · built 2013–2014
Fuel may leakR/2011/172 · 26/01/2012
Fuel leaks in the plug area of the drain opening may occur at the fuel filter with integrated fuel heaters. Fuel can escape and is noticeable to the customer due to a corresponding diesel odour. The diesel can reach the road and as a result friction between the tyres and road surface may be decreased.
Remedy: Check filter and replace as necessary.
Listed for: R CLASS, S CLASS, C CLASS, E CLASS, G CLASS, CLS · built 2009–2011
Passenger airbag may not function as intendedR/2015/120 · 23/07/2015
On affected vehicles a control unit under the front passenger seat may not have been correctly installed. This may adversely affect the seat occupancy recognition system.The seat occupancy recognition system may not correctly identify seat occupancy and may incorrectly activate or deactivate the air bag. Activation st…
Remedy: Check control unit installation and correct if necessary. Where necessary replace passenger seat cushion.
Listed for: C CLASS · built 2013–2014
Risk of fireR/2016/032 · 23/03/2016
The threaded connection of the battery ground may not be tightened correctly due to deviation in the tightening angle monitoring. In the event of a poor ground of the battery line a temporarily higher transition resistance could lead to the formation of sparks and local heating. This would increase the risk of fire.
Remedy: Recall the vehicles that are likely to be affected and check the ground connection of the battery line and if necessary replace the ground connection.
Listed for: C CLASS · built 2014
Axle mounting may breakR/2017/301 · 21/11/2017
Under extreme starting conditions (such as full throttle) on wet road surfaces AND with repeated short term rear wheel spin strong torque peaks in the powertrain may occur.This may cause an axle mounting flange to break and possible loss of drive.
Remedy: On affected vehicles update the ESP and chassis control units.
Listed for: C-CLASS AMG · built 2014–2016
Vehicles with a panoramic sunroofthe polycarbonate panel may not have been bonded correctly during a prior service repairR/2021/274 · 20/08/2021
The polycarbonate panel located between the windshield and the panoramic sunroof may not have been bonded correctly during a prior service repair.
Remedy: Remove the bonded panel and install a new polycarbonate panel if required.
Listed for: C-CLASS, GLC, GLA, S-CLASS, GLE COUPE, CLA(117), A CLASS(176) · built 2013–2019
Starting current limiter may overloadR/2017/096 · 20/06/2017
Where the car incurs severe engine damage resulting in the engine failing to turn over (engine seizure) and if the driver repeatedly attempts to start the engine despite the engine not cranking the very high electrical current could lead to overheating of the starting current limiter and the potential for a fire.
Remedy: Recall the vehicles that are likely to be affected and install an additional fuse in the electrical line to the starter.
Listed for: A CLASS, GLA, GLC, E-CLASS, CLA, B CLASS, C-CLASS · built 2014–2017
On affected vehicles the aluminium bolts of the steering gear could corrode and break due to the intrusion of moisture.R/2023/023 · 20/02/2023
On affected vehicles the aluminium bolts of the steering gear could corrode and break due to the intrusion of moisture.
Remedy: Replace the steering gear mounting bolts on the affected vehicles with steel bolts. Should the bolts break or already be broken change the steering gear.
Listed for: E-CLASS, GLE, C-CLASS, CLS, ML, GLC, GLS, S-CLASS, GL, GLK · built 2010–2017
To improve emissions of the affected vehicles.certain calibrations of functionalities must be changed in the engine managementR/2018/266 · 19/10/2018
Improve the vehicle emissions via software updates.
Remedy: Update the diesel engine control unit software and add a supplementary booklet for the operator's manual
Listed for: GLC, GLE, C-CLASS, S-CLASS · built 2013–2018
Engine may stallR/2015/081 · 19/05/2015
It is possible on certain petrol (gasoline) vehicles that the mounting hooks for the jet pump may not have been manufactured to specification. The jet pump is mounted on top of the fuel delivery module in the fuel tank and if the mounting hooks were to fail it will result in the jet pump detaching from the module and…
Remedy: Recall all likely to be affected vehicles to install an additional clip to the jet pump.
Listed for: C CLASS · built 2014
Faulty control unit may cause vehicle to perform outside specificationR/2017/124 · 19/04/2017
Where a control unit coding was updated in a workshop between 3 December 2016 and 5 December 2016 the coding may not correspond to the specification and may trigger unplanned action in the vehicle. The safety and emissions systems may not react as design intent.
Remedy: Recall the vehicles that are likely to be affected and update the software in the corresponding control units.
Listed for: E-CLASS, M CLASS, C-CLASS, CLA, CL CLASS, GLA, CLS, S CLASS, SLK, GLC · built 2004–2017
Electrical wiring in steering assembly may be insufficiently groundedR/2017/282 · 18/12/2017
The steering column clock spring may break. This will cause warning messages to illuminate in the instrument cluster but in extreme instances it may cause the driver's airbag to deploy.
Remedy: Affected vehicles will be recalled to establish sufficient grounding of the steering components.
Listed for: CLA, GLC, C-CLASS, A CLASS, B CLASS, GLA · built 2011–2017
Engine could lose power.R/2008/149 · 17/11/2008
The electrical connection in the interior of the crankshaft sensor's chip housing may be interrupted which may result in loss of power and the inability to restart engine
Remedy: Recall affected vehicles and replace crankshaft sensor
Listed for: M CLASS, G CLASS, CLS, R CLASS, C CLASS, CLK, S CLASS, E CLASS · built 2006–2007
The driver's air bag may have a chemical change to its propellant over timeR/2021/277 · 17/08/2021
The driver's airbag may have a chemical change to its propellant over time.
Remedy: Replace the driver�s airbag.
Listed for: A CLASS, R CLASS, C-CLASS, M CLASS, E-CLASS, SLK · built 2004–2013
Oil may leakR/2014/182 · 16/01/2015
On certain diesel engines the 'O' ring may not have been produced to the correct specification. This may allow oil to leak and contaminate the environment. If excessive oil is lost engine damage may occur.
Remedy: On affected vehicles replace the chain tensioner sealing ring.
Listed for: A CLASS, GLA, B CLASS, E CLASS, C CLASS, M CLASS, SLK-CLASS, CLS, CLA · built 2014
An electric line in the engine compartment may have been routed outside of the specificationR/2018/254 · 15/10/2018
An electric line in the engine compartment may have been routed outside of the specification.
Remedy: Check the routing of the wiring harness at the prefuse box in the engine compartment and correct if necessary.
Listed for: C-CLASS · built 2014–2018
Vehicle may shut downR/2015/083 · 14/05/2015
Due to a software code error it is possible that the 1.6ltr 4 cylinder diesel engines may suffer a stalling situation during the warm-up phase and where the engine is subjected to high load requirements. However if the engine does stall it can be immediately restarted and the vehicle can be driven without restrictions…
Remedy: Recall all affected vehicles to update the engine control unit software.
Listed for: C CLASS · built 2014–2015
One or more control unit vehicle configurations might not meet specificationsR/2022/113 · 13/05/2022
Vehicles configurations were written into one or more control units that might not meet specifications.
Remedy: Update the configuration of the affected control units on the vehicles.
Listed for: C-CLASS, G CLASS · built 2008–2012
Electrical wiring in steering assembly may be insufficiently groundedR/2018/130 · 11/06/2018
The steering column clock spring may break. This will cause warning messages to illuminate in the instrument cluster but in extreme instances it may cause the driver's airbag to deploy.
Remedy: Affected vehicles will be recalled to establish sufficient grounding of the steering components
Listed for: GLC, GLA, B CLASS, CLA, A CLASS, C-CLASS · built 2011–2017
Steering components may be insufficiently groundedR/2018/098 · 11/05/2018
It has been determined that the steering airbag electrical components are insufficiently grounded. Failure of the steering column module clock spring could result in an inadvertent deployment of the driver airbag which may cause risk of injury to the driver and an increased risk of a potential collision.
Remedy: On affected vehicles the manufacturer will fit a contact bridge to the outer race of the steering column top bearing which will provide correct grounding.
Listed for: GLC, A CLASS, C-CLASS, B CLASS, CLA, GLA · built 2011–2017
Engine emergency shut off on board diagnosis or tank/speedo signal may be affectedR/2008/147 · 10/11/2008
Possibility of transfer of incorrect control unit software which could affect engine shut off control in an emergency situation or the on board diagnosis system or tank/speedometer signal
Remedy: Recall affected vehicles and replace SAM control unit
Listed for: CLK, M CLASS, C CLASS, A CLASS, E CLASS, R CLASS, SLK-CLASS · built 2004–2008
The engine control unit software nay not meet specificationsR/2020/201 · 10/09/2020
The engine control unit software might not meet the specifications.
Remedy: Update the diesel engine control unit software on the affected vehicles.
Listed for: AMG GT, C-CLASS · built 2014–2017
Electrical wiring in steering assembly may be insufficiently groundedR/2018/154 · 09/07/2018
The steering column clock spring may break. This will cause warning messages to illuminate in the instrument cluster but in extreme instances it may cause the driver's airbag to deploy
Remedy: .Affected vehicles will be recalled to be checked to ensure there is sufficient grounding of the steering components.
Listed for: E-CLASS, C-CLASS · built 2011–2017
Electrical wiring in steering assembly may be insufficiently groundedR/2018/055 · 09/04/2018
The steering column clock spring may break. This will cause warning messages to illuminate in the instrument cluster but in extreme instances it may cause the driver's airbag to deploy.
Remedy: Affected vehicles will be recalled to establish sufficient grounding of the steering components.
Listed for: GLC, C-CLASS · built 2011–2017
Electrical wiring in steering assembly may be insufficiently groundedR/2018/069 · 09/04/2018
The steering column clock spring may break. This will cause warning messages to illuminate in the instrument cluster but in extreme instances it may cause the driver's airbag to deploy.
Remedy: Affected vehicles will be recalled to establish sufficient grounding of the steering components.
Listed for: C-CLASS, GLC, GLA, CLA, B CLASS, A CLASS · built 2011–2017
Takata airbag might not deploy as specifiedR/2021/358 · 08/11/2021
Certain climatic conditions may cause a chemical change to the airbag propellants�over time.�
Remedy: Replace the driver and�passenger airbags.�
Listed for: GLK, C-CLASS, E-CLASS · built 2004–2013
Takata airbag might not deploy as specifiedR/2021/359 · 08/11/2021
Certain climatic conditions may cause a chemical change to the airbag propellants over time.
Remedy: Replace the driver and passenger airbags.
Listed for: GLK, C-CLASS · built 2004–2013
Electric power steering motor defectiveR/2017/159 · 08/06/2017
Contacts inside the electric power steering motor may not have been correctly formed. Failure of these contacts would cause the loss of power steering assistance.If this happens a warning lamp will illuminate
Remedy: Replace the electric power steering motor on affected vehicles.
Listed for: C-CLASS, E-CLASS · built 2014–2016
Software update to improve emissionsR/2019/077 · 08/05/2019
Improve the vehicle emissions via software updates.
Remedy: Update the diesel engine control unit software and add a supplementary booklet for the operator's manual.
Listed for: C-CLASS · built 2014–2018
Side restraint system may not function as intendedR/2015/121 · 07/07/2015
The threaded connection of the crash sensors at the B-pillars may not be to specification. There is a possibility that the side restraint system may trigger too late or not at all in the event of a side impact which may pose an increased risk of injury for the vehicle occupants.
Remedy: Recall the vehicles that are likely to be affected to check and where necessary correct the threaded connection of the crash sensors at both the left and right B-pillars.
Listed for: C CLASS · built 2014
On affected vehicles the panel located between the windshield and the panoramic sunroof might not have been bonded correctly during a prior service repair.R/2024/024 · 07/02/2024
On affected vehicles the panel located between the windshield and the panoramic sunroof might not have been bonded correctly during a prior service repair.
Remedy: Check the front fixed element of the panoramic sliding sunroof and replace if necessary.
Listed for: GLA, GLC, S-CLASS, CLA(117), A CLASS, C-CLASS · built 2012–2018
Engine control unit software to be updatedR/2020/243 · 06/10/2020
Improve the vehicle emissions via software updates.
Remedy: Update the relevant control unit�s software and if necessary replace the NOx sensors.
Listed for: E-CLASS, S-CLASS, GLS, ML/GLE, C-CLASS, CLS, SLK, SLC, GLC, GLE COUPE · built 2011–2018
Fuel may leakR/2016/190 · 06/09/2016
A high pressure fuel line to the fuel pump may work looses and allow diesel to leak
Remedy: On affected vehicles replace fuel line
Listed for: C CLASS · built 2013–2016
On affected vehicles the bonding between the glass panel and the sliding roof frame might not meet specifications. In consequence a separation of the glass panel from the vehicle cannot be excluded.R/2023/018 · 06/02/2023
On affected vehicles the bonding between the glass panel and the sliding roof frame might not meet specifications. In consequence a separation of the glass panel from the vehicle cannot be excluded.
Remedy: Check the glass panel and replace the sliding roof if necessary.
Listed for: CLC, C-CLASS · built 2000–2010
The bonding between the glass panel and the sliding roof frame might not meet specificationsR/2023/019 · 06/02/2023
On affected vehicles the bonding between the glass panel and the sliding roof frame might not meet specifications. In consequence a separation of the glass panel from the vehicle cannot be excluded.
Remedy: Check the glass panel and replace the sliding roof if necessary.
Listed for: CLC, C-CLASS · built 2000–2010
The bonding between the glass panel and the sliding roof frame might not meet specifications.R/2023/020 · 06/02/2023
On affected vehicles the bonding between the glass panel and the sliding roof frame might not meet specifications. In consequence a separation of the glass panel from the vehicle cannot be excluded.
Remedy: Check the glass panel and replace the sliding roof if necessary.
Listed for: CLK, CLC, E-CLASS, C-CLASS, CLS · built 2000–2010
Certain specific calibrations of functions must be changed in the engine managementR/2020/200 · 05/10/2020
Certain specific calibrations of functions must be changed in the engine management of the vehicles
Remedy: Update the diesel engine control unit software
Listed for: C-CLASS, E-CLASS · built 2008–2013
The bonding between the glass panel and the sliding roof frame may not meet specificationsR/2019/458 · 04/05/2020
The bonding between the glass panel and the sliding roof frame might not meet specifications
Remedy: Check the glass panel bonding on the affected vehicles and replace the sliding roof if necessary
Listed for: CLS, CLK, C-CLASS, E-CLASS · built 2000–2010
1. Airbags may fail to deploy or 2. Airbags may deploy without obvious causeR/2016/034 · 04/04/2016
Due to corrosion of internal components the SRS control unit may fail. This will deactivate SRS components such as airbags or in rare instances cause an SRS component to unintentionally deploy.
Remedy: On affected vehicles replace the SRS control Unit.
Listed for: C CLASS · built 2006–2009
Electrical wiring in steering assembly may be insufficiently groundedR/2018/006 · 02/02/2018
The steering column clock spring may break. This will cause warning messages to illuminate in the instrument cluster but in extreme instances it may cause the driver's airbag to deploy.
Remedy: Affected vehicles will be recalled to establish sufficient grounding of the steering components.
Listed for: E-CLASS, C-CLASS · built 2011–2017
Oil may leakR/2015/150 · 01/09/2015
On affected vehicles the transmission oil cooler return pipe may not have been mounted correctly. It is possible vibration may cause the pipe to fail and leak oil.
Remedy: Correctly mount oil cooler pipes.
Listed for: C CLASS · built 2014
The passenger air bag may not deploy as specifiedR/2022/124 · 01/06/2022
The passenger airbag may not deploy as specified.
Remedy: Replace the passenger airbag.
Listed for: C-CLASS, GLK · built 2004–2013
The passenger air bag may not deploy as specifiedR/2022/125 · 01/06/2022
The passenger airbag may not deploy as specified.
Remedy: Replace the passenger airbag.
Listed for: C-CLASS, GLK · built 2004–2013

Measured at MOT: how a 2011 C-Class fails more often

Based on 26,259 first MOT tests of this model at 15 years old (cars first used 2009–2010), compared against every car of the same age and fuel.

Nothing stands out. No category fails clearly more often on this model than on cars of the same age and fuel.

How to read this

MOT results reflect how a car has been used and maintained as much as the model itself. High mileage, short journeys and deferred servicing all show up here.

Contains public sector information licensed under the Open Government Licence v3.0. Failure rates derived by FindServiceHistory from the DVSA anonymised MOT test and failure-item extracts.

MOT failure rate: the C-Class against vehicles its age

In our analysis of DVSA's anonymised MOT data for 2024 and 2025, 25.7% of 723,756 initial MOT tests on the Mercedes-Benz C-Class failed at the first attempt — 14% less often than vehicles of the same ages and fuel types, which failed 30.1%.

C-ClassCars of the same age and fuel (all makes)

Mercedes-Benz C-Class initial MOT failure rate by age band, against vehicles of the same age and fuel
Age	Tests	C-Class	Same age & fuel	Difference
3–5 years	84,335	13.5%	15.5%	12% lower
6–9 years	270,077	18.8%	23.2%	18% lower
10–14 years	221,753	30.3%	35.8%	15% lower
15–19 years	113,201	38.5%	42.9%	10% lower
20–40 years	34,390	38.1%	40.1%	About the same

These describe the model, not one car: how vehicles are used and maintained shows up as much as how they were built. Differences are the conservative end of a 95% confidence interval.

Contains public sector information licensed under the Open Government Licence v3.0. Rates and comparisons are FindServiceHistory's own analysis, not DVSA figures.

These describe the model, not one car. Plenty of cars never have the problems their model is known for, and a recall may already have been done on yours. Every problem links to its sources; a reported problem needs two independent publishers before we list it.

Recalls are listed by DVSA for the model around its build date — check a specific car by VIN at GOV.UK. Contains public sector information licensed under the Open Government Licence v3.0.

Common questions

What are the most common C-Class problems?

For cars built from 2012, the problems at least two independent publishers report include: 3.0 V6 diesel: oil leak from hardened oil-cooler seals; Diesel: DPF, NOx sensor and AdBlue faults; Petrol smell from a loose or porous fuel line; Creaks from the dashboard, sunroof and door seals; Infotainment: slow, freezing screen and faulty touchpad. Which apply depends on the generation and engine — they are listed generation by generation above, each with its sources.

Has the C-Class been recalled?

Yes. DVSA lists recalls for the C-Class built from 2012, shown above by generation. A recall covers a range of chassis numbers, so not every car is affected — check a specific car by VIN on GOV.UK, or by registration with our checker.

Does my C-Class have these problems?

Not necessarily. These describe the model; many cars never have them, and a well-maintained car is less likely to. Enter your registration above to see the problems for your exact generation and engine, and whether DVSA records an outstanding recall on it. Whether a known problem was fixed is what a service history check shows.

Has this C-Class had the work done?

A known problem matters far less on a car whose dealer records show it was fixed. A service history check returns the manufacturer's own dealership records for a specific car — and there's no charge if we find nothing.

Check a Mercedes-Benz service history

Mercedes-Benz C-Class common problems and recalls

C-Class (W206) (2021 on)

Acknowledged by the manufacturer

Reported by owners and the motoring press

DVSA recalls for the C-Class (W206)

C-Class (W205, saloon, estate, coupe, cabriolet) (2014–2021)

Acknowledged by the manufacturer

Reported by owners and the motoring press

DVSA recalls for the C-Class (W205, saloon, estate, coupe, cabriolet)

Measured at MOT: how a 2018 C-Class fails more often

C-Class (W204) (2007–2014)

Acknowledged by the manufacturer

Reported by owners and the motoring press

DVSA recalls for the C-Class (W204)

Measured at MOT: how a 2011 C-Class fails more often

MOT failure rate: the C-Class against vehicles its age

Common questions

Has this C-Class had the work done?

More common problems