Mercedes-Benz C-Class reliability

On affected vehicles the rear-axle wiring harness might be pre-damaged due to a fixing which might not meet specifications.

Fix: Check and replace the rear-axle wiring harness if necessary.

Recalled models: C-CLASS · 1 vehicles

On certain vehicles some 80A fuses installed might not meet requirements.

Fix: Replace the respective main fuse boxes on the affected vehicles.

Recalled models: C-CLASS · 958 vehicles

On affected vehicles the panel located between the windshield and the panoramic sunroof might not have been bonded correctly during a prior service repair.

Fix: Check the front fixed element of the panoramic sliding sunroof and replace if necessary.

Recalled models: C-CLASS · 45 vehicles

On affected vehicles the left brake hose on the rear axle might not have been installed according to specifications.

Fix: Check the brake hose and replace if necessary.

Recalled models: C-CLASS · 1 vehicles

On affected vehicles the length of the transmission wiring harness might not meet specifications.

Fix: Check transmission wiring harness routing and rework if necessary.

Recalled models: C-CLASS · 3 vehicles

On affected vehicles the welding between fuel filler pipe and fuel tank might not meet specifications.

Fix: Replace the fuel tank.

Recalled models: C-CLASS · 3 vehicles

On affected vehicles the cable lug of the 48V ground connection in the engine compartment might not be fixed correctly.�

Fix: Check the bolting of the ground connection on the affected vehicles and repair if necessary

Recalled models: C-CLASS · 6,902 vehicles

On affected vehicles the fuel pump impeller might not meet specifications and may deform.

Fix: Replace the fuel pump module.

Recalled models: C-CLASS · 2,677 vehicles

On affected vehicles the bolts of certain 12V and 48V ground connections might be fastened with an insufficient torque.

Fix: Check the bolting of the ground connections and repair if necessary.

Recalled models: C-CLASS · 75 vehicles

On affected vehicles the bolts of certain 12V and 48V ground connections might be fastened with an insufficient torque.

Fix: Check the bolting of the ground connections and repair if necessary.

Recalled models: C-CLASS · 9 vehicles

On affected vehicles the bolts of certain 12V and 48V ground connections might be fastened with an insufficient torque.

Fix: Check the bolting of the ground connections and repair if necessary.

Recalled models: C-CLASS · 173 vehicles

On affected vehicles the inflation of the front passenger airbag might not meet specifications.

Fix: Replace the front passenger airbag.

Recalled models: C-CLASS · 796 vehicles

On affected vehicles the bolting of the 48V ground connection in the engine compartment might not be sufficiently tightened.

Fix: Check the bolting of the ground connection and correct if necessary.

Recalled models: C-CLASS · 2,674 vehicles

On affected vehicles the aluminium bolts of the steering gear could corrode and break due to the intrusion of moisture.

Fix: 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.

Recalled models: C-CLASS · 51,251 vehicles

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.

Fix: Check the glass panel and replace the sliding roof if necessary.

Recalled models: C-CLASS · 9,567 vehicles

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.

Fix: Check the glass panel and replace the sliding roof if necessary.

Recalled models: C-CLASS · 3,267 vehicles

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.

Fix: Check the glass panel and replace the sliding roof if necessary.

Recalled models: C-CLASS · 16,535 vehicles

A weld seam of the supporting structure of the transmission connection may not correspond with the specifications.�

Fix: Check the transmission connection on the affected vehicles and replace it if necessary.�

Recalled models: C-CLASS · 3 vehicles

The holding force of the fuel feed line may not correspond with the specifications.

Fix: Check the fuel line on the affected vehicles and replace it if necessary.

Recalled models: C-CLASS · 702 vehicles

The software of the communication module may not correspond with the specifications.

Fix: Update the software of the communication module in the affected vehicles.

Recalled models: C-CLASS · 56 vehicles

Moisture may ingress into the signal acquisition module.

Fix: Retro fit a cover to the signal acquisition module.

Recalled models: C-CLASS · 1,564 vehicles

The engine control unit wiring harness might come in contact with the engine hood.

Fix: Check the routing of the engine control unit wiring harness and correct it if necessary.

Recalled models: C-CLASS · 4 vehicles

Vehicles might be equipped with an incorrect variant of the tyre pressure label in the tank flap.

Fix: The tyre pressure label is to be replaced.

Recalled models: C-CLASS · 2 vehicles

The passenger airbag may not deploy as specified.

Fix: Replace the passenger airbag.

Recalled models: C-CLASS · 109,809 vehicles

The passenger airbag may not deploy as specified.

Fix: Replace the passenger airbag.

Recalled models: C-CLASS · 25 vehicles

Individual bolts or chain links of the camshaft timing chain might wear in case of a long term operation under specific driving conditions.

Fix: Replace the camshaft timing chain on the affected vehicles

Recalled models: C-CLASS · 714 vehicles

The software of the rear signal acquisition and actuation module might not meet specifications.

Fix: Update the software of the signal acquisition and actuation module on the affected vehicles.

Recalled models: C-CLASS · 605 vehicles

Vehicles configurations were written into one or more control units that might not meet specifications.

Fix: Update the configuration of the affected control units on the vehicles.

Recalled models: C-CLASS · 3 vehicles

The overhead control panel under certain circumstances might be deactivated permanently due to a software error.

Fix: Update the software of the overhead control panel.

Recalled models: C-CLASS · 6 vehicles

A particle in the fuel rail might lead to a leak between the fuel rail and the fuel injector.�

Fix: Replace the fuel rail and fuel injectors on the affected vehicles.�

Recalled models: C-CLASS · 26 vehicles

On certain vehicles the routing of an electric cable in the engine compartment might not meet specifications.

Fix: Check the cable routing on the affected vehicles and correct it if necessary.

Recalled models: C-CLASS · 6,322 vehicles

On certain vehicles the software of the communication module might not meet specifications.

Fix: 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.

Recalled models: C-CLASS · 486 vehicles

On certain vehicles the software of the communication module might not meet specifications.

Fix: 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.

Recalled models: C-CLASS · 63 vehicles

On certain vehicles the automatic transmission might have been filled with too much transmission oil.

Fix: Check the oil level of the transmission on the affected vehicles and adjust it if necessary.

Recalled models: C-CLASS · 1 vehicles

On certain vehicles with an active and connected Mercedes me connect account the configuration of the MBUX system might not meet specifications.

Fix: Update the configuration of the MBUX system on affected vehicles.

Recalled models: C-CLASS · 5 vehicles

On certain vehicles the software of the engine control unit might not meet specifications.

Fix: Conduct an update the software of the engine control unit on the affected vehicles.

Recalled models: C-CLASS · 51 vehicles

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.

Fix: Update the software of the coolant pump and replace the electrical switch valve on the affected vehicles.

Recalled models: C-CLASS · 35,624 vehicles

On certain vehicles with an active and connected Mercedes me connect account the configuration of the MBUX system might not meet specifications.

Fix: A remote update of the configuration of the MBUX system will be conducted without the need for a workshop visit.

Recalled models: C-CLASS · 25 vehicles

The behaviour of the emergency call system might not meet specifications.

Fix: Update the software of the communication module for the emergency call system.

Recalled models: C-CLASS · 6 vehicles

The behaviour of the emergency call system might not meet specifications.

Fix: Update the software of the communication module for the emergency call system.

Recalled models: C-CLASS · 23 vehicles

The behaviour of the emergency call system might not meet specifications.

Fix: Update the software of the communication module for the emergency call system.

Recalled models: C-CLASS · 21 vehicles

The behaviour of the emergency call system might not meet specifications.

Fix: Update the software of the communication module for the emergency call system.

Recalled models: C-CLASS · 50,390 vehicles

Certain climatic conditions may cause a chemical change to the airbag propellants�over time.�

Fix: Replace the driver and�passenger airbags.�

Recalled models: C-CLASS · 85,613 vehicles

Certain climatic conditions may cause a chemical change to the airbag propellants over time.

Fix: Replace the driver and passenger airbags.

Recalled models: C-CLASS · 56 vehicles

A nozzle inside the suction jet pump in the fuel tank might not have been installed or fixed inside the pump according to specifications.

Fix: Conduct a check of the fuel system on the affected vehicles and replace the fuel tank including the suction jet pump if necessary.

Recalled models: C-CLASS · 88 vehicles

The belt tensioner arm may have been manufactured with borderline tolerance.

Fix: Replace the belt tensioner. Additionally check the v-ribbed belt on the affected vehicles and replace it if necessary.

Recalled models: C-CLASS · 427 vehicles

The polycarbonate panel located between the windshield and the panoramic sunroof may not have been bonded correctly during a prior service repair.

Fix: Remove the bonded panel and install a new polycarbonate panel if required.

Recalled models: C-CLASS · 61 vehicles

The driver's airbag may have a chemical change to its propellant over time.

Fix: Replace the driver�s airbag.

Recalled models: C-CLASS · 108,486 vehicles

Diodes on the rectifier bridge of the alternator might fail.

Fix: Update the engine control unit software with an optimised alternator control strategy on the affected vehicles.

Recalled models: C-CLASS · 18,050 vehicles

The fixation of the rear headrests might not meet specifications.

Fix: Check the guide sleeves on the rear seats of the potentially affected vehicles and replace them if necessary.

Recalled models: C-CLASS CONVERTIBLE · 320 vehicles

The bolting of the high-voltage battery to the vehicle body in the luggage compartment might not meet specifications.

Fix: Check the bolting of the high-voltage battery to the vehicle body on the affected vehicles and rework if necessary.

Recalled models: C-CLASS · 5 vehicles

The bonding between the glass panel and the sliding roof frame might not meet specifications.

Fix: Check the glass panel bonding on the affected vehicles and replace the sliding roof if necessary.

Recalled models: C-CLASS · 310 vehicles

The behaviour of the emergency call system might not meet specifications.

Fix: Update the software of the communication module for the emergency call system.

Recalled models: C-CLASS · 108,971 vehicles

The behaviour of the emergency call system might not meet specifications.

Fix: Update the software of the communication module for the emergency call system.

Recalled models: C-CLASS · 86,604 vehicles

The behaviour of the emergency call system might not meet specifications.

Fix: Update the software of the communication module for the emergency call system.

Recalled models: C-CLASS · 90,716 vehicles

The connection of the gas lines of the inertisation system might not meet specifications.

Fix: Check and if necessary rework the gas lines of the inertisation system.

Recalled models: C-CLASS · 29,137 vehicles

The behaviour of the emergency call system might not meet specifications.

Fix: Update the software of the communication module for the emergency call system.

Recalled models: C-CLASS · 10,410 vehicles

The behaviour of the emergency call system might not meet specifications.

Fix: Update the software of the communication module for the emergency call system.

Recalled models: C-CLASS · 162,581 vehicles

The behaviour of the emergency call system might not meet specifications.

Fix: Update the software of the communication module for the emergency call system.

Recalled models: C-CLASS · 106,665 vehicles

The behaviour of the emergency call system might not meet specifications.

Fix: Update the software of the communication module for the emergency call system.

Recalled models: C-CLASS · 81,267 vehicles

The behaviour of the emergency call system might not meet specifications.

Fix: Update the software of the communication module for the emergency call system.

Recalled models: C-CLASS · 6 vehicles

The communication module may be deactivated

Fix: Carry out a check of the configuration of the communication module on affected vehicles and if necessary activate the communication module.

Recalled models: C-CLASS · 24 vehicles

The software of certain communication modules may not meet specifications.

Fix: Carry out an update to the software of the communication module on affected vehicles.

Recalled models: C-CLASS · 36 vehicles

The shield for the high-voltage wiring harness may not permanently withstand the electrical loads that are induced under certain driving profiles

Fix: Replace the high-voltage wiring harness on the affected vehicles

Recalled models: C-CLASS · 2,377 vehicles

The wiring harness of the steering control unit might not have been manufactured according to specification.

Fix: Check the wiring harness of the steering control unit on the affected vehicles and replace it if necessary.

Recalled models: C-CLASS · 3,029 vehicles

The headlight adjustment might not meet the specification

Fix: Check the headlight adjustment on the affected vehicles and correct it if necessary.

Recalled models: C-CLASS · 160 vehicles

The software of the ESP control unit might not meet the specifications.

Fix: Update the software for the ESP control unit on the affected vehicles.

Recalled models: C-CLASS · 1,061 vehicles

On affected vehicles the software of the communication module for the emergency call system does not meet the specification

Fix: Update the software of the communication module for the emergency call system

Recalled models: C-CLASS · 3,127 vehicles

The seat belt warning function does not meet the specification

Fix: Activate the correct seat belt warning scenario in the instrument cluster

Recalled models: C-CLASS · 45 vehicles

Improve the vehicle emissions via software updates.

Fix: Update the relevant control unit�s software and if necessary replace the NOx sensors.

Recalled models: C-CLASS · 994 vehicles

Certain specific calibrations of functions must be changed in the engine management of the vehicles

Fix: Update the diesel engine control unit software

Recalled models: C-CLASS · 23,302 vehicles

The engine control unit software might not meet the specifications.

Fix: Update the diesel engine control unit software on the affected vehicles.

Recalled models: C-CLASS · 1,258 vehicles

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.

Fix: 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

Recalled models: C-CLASS · 124 vehicles

The left rear seat backrest lock might not meet the specifications

Fix: Replace the left rear seat backrest lock on the affected vehicles.

Recalled models: C-CLASS · 1,179 vehicles

A correctly fastened seat belt could be detected as not fastened impairing the restraint system

Fix: Check the relevant seat belt buckles in the affected vehicles and replace if necessary

Recalled models: C-CLASS · 15,652 vehicles

The dimension of the brake discs installed on the front axle might be too small.

Fix: Replace the brake discs on the affected vehicles.

Recalled models: C-CLASS · 4 vehicles

The heat shield installed at the turbocharger may not meet the specification

Fix: Replace the heat shield on the affected vehicles

Recalled models: C-CLASS · 27 vehicles

The bonding between the glass panel and the sliding roof frame might not meet specifications

Fix: Check the glass panel bonding on the affected vehicles and replace the sliding roof if necessary

Recalled models: C-CLASS · 18,132 vehicles

The spring damper software might not meet specification affecting level sensors and headlight range.

Fix: Replace the spring damper control unit on affected vehicles.

Recalled models: C-CLASS · 1 vehicles

The mechanical connection between tie rod and right front axle stub might not be ensured.

Fix: Replace the tie rod of the right front axle on the affected vehicles.

Recalled models: C-CLASS · 11 vehicles

; The software of the radar control unit might not meet the specification

Fix: Update the software of the radar sensor control unit on the affected vehicles.

Recalled models: C-CLASS · 294 vehicles

The durability of the crankshaft might be impaired.

Fix: Replace the engine on affected vehicles.

Recalled models: C-CLASS · 35 vehicles

The mounting bolts of the turbocharger oil return line might have been interchanged

Fix: Replace the mounting bolts

Recalled models: C-CLASS · 18 vehicles

Improve the vehicle emissions via software updates.

Fix: Update the diesel engine control unit software and add a supplementary booklet for the operator's manual.

Recalled models: C-CLASS · 25 vehicles

An internal sensor within the electric power steering unit might not have been manufactured according to specifications.

Fix: The affected vehicles are to have the steering unit replaced.

Recalled models: C-CLASS · 32 vehicles

The switches in certain seat belt buckles might not have been manufactured according to specifications.

Fix: The affected seat belt buckles are to be replaced.

Recalled models: C-CLASS · 2,570 vehicles

The ECO Start-Stop function may be disabled and cause the vehicle to stall.

Fix: The affected vehicles are to be recalled and the software updated.

Recalled models: C-CLASS · 69 vehicles

A lock nut may be cracked in the steering gear.

Fix: The electric power steering is to be checked and if necessary replaced.

Recalled models: C-CLASS · 6,684 vehicles

A lock nut may be cracked in the steering gear.

Fix: The electric power steering is to be checked and if necessary replaced.

Recalled models: C-CLASS · 24 vehicles

The ESP control unit may not be initialised as intended during the start-up process.

Fix: The affected vehicles are to be recalled and ESP control unit software updated.

Recalled models: C-CLASS · 5,894 vehicles

The status of the front passenger airbags displayed in the centre console might not be indicated correctly.

Fix: The affected vehicles head unit software will be updated

Recalled models: C-CLASS · 36,643 vehicles

The lock status of the steering coupling was not correctly documented following assembly.

Fix: As a precautionary measure on affected vehicles the lock status of the steering coupling will be determined and reworked if necessary.

Recalled models: C-CLASS · 4 vehicles

Improve the vehicle emissions via software updates.

Fix: Update the diesel engine control unit software and add a supplementary booklet for the operator's manual

Recalled models: C-CLASS · 15,692 vehicles

An electric line in the engine compartment may have been routed outside of the specification.

Fix: Check the routing of the wiring harness at the prefuse box in the engine compartment and correct if necessary.

Recalled models: C-CLASS · 8,562 vehicles

Bonding of the rear beltline trim strips may not correspond to the specifications.

Fix: Check the trim strips of the affected vehicles and replace them if necessary.

Recalled models: C-CLASS · 7,800 vehicles

Incorrect engine undertray fitted.

Fix: Check and replace engine undertray on affected vehicles.

Recalled models: C-CLASS · 15 vehicles

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 fitting may not withstand the required load values. As a result the fitting may detach from the backrest member. In the case of an accident this could result in a higher occupant load. Due to the delivery scenario the fault can only occur on one side of the seat.

Fix: As a precautionary measure recall the affected vehicles and check the backrest member and replace if necessary

Recalled models: C-CLASS · 46 vehicles

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 would possibly no longer have a restraint effect. In addition separating parts could enter the passenger compartment. This could lead to an increased risk of injury.

Fix: On affected vehicles replace the driver�s airbag

Recalled models: C-CLASS · 421 vehicles

Software of switch module incorrect specification

Fix: Update software of affected vehicles

Recalled models: C-CLASS · 6 vehicles

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.

Fix: 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.

Recalled models: C-CLASS · 21,366 vehicles

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

Fix: .Affected vehicles will be recalled to be checked to ensure there is sufficient grounding of the steering components.

Recalled models: C-CLASS · 10,113 vehicles

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.

Fix: Affected vehicles will be recalled to establish sufficient grounding of the steering components

Recalled models: C-CLASS · 78,608 vehicles

The connector pins of the occupant classification system to the airbag control unit might have been manufactured outside specification. After a period of time this may cause decativation of the passnger airbag.

Fix: On affected vehicles replace the connector pins of the occupant classification system.

Recalled models: C-CLASS · 100 vehicles

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.

Fix: 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.

Recalled models: C-CLASS · 74,329 vehicles

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.

Fix: Affected vehicles will be recalled to establish sufficient grounding of the steering components.

Recalled models: C-CLASS · 67,027 vehicles

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.

Fix: Affected vehicles will be recalled to establish sufficient grounding of the steering components.

Recalled models: C-CLASS · 51,528 vehicles

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.

Fix: On affected vehicles replace seatbelts with quality assured units.

Recalled models: C-CLASS · 296 vehicles

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.

Fix: Affected vehicles will be recalled to establish sufficient grounding of the steering components.

Recalled models: C-CLASS · 84,879 vehicles

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.

Fix: Affected vehicles will be recalled to establish sufficient grounding of the steering components.

Recalled models: C-CLASS · 46,093 vehicles

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.

Fix: On affected vehicles update the ESP and chassis control units.

Recalled models: C-CLASS AMG · 1,511 vehicles

The right front seat belt pretensioner may not conform to specification . This may adversely affect it's operation in the event of an accident.

Fix: Replace the pretensioner on affected vehicles.

Recalled models: C-CLASS · 135 vehicles

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.

Fix: Recall the vehicles that are likely to be affected and replace the front seatbelts that are likely to be affected.

Recalled models: C-CLASS · 78 vehicles

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.

Fix: Recall the vehicles that are likely to be affected and install an additional fuse in the electrical line to the starter.

Recalled models: C-CLASS · 74,444 vehicles

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

Fix: Replace the electric power steering motor on affected vehicles.

Recalled models: C-CLASS · 16 vehicles

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.

Fix: 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 serviceable it will be replaced. A new threaded connection will be used where the tightness is not correct.

Recalled models: C-CLASS · 7 vehicles

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.

Fix: Recall the vehicles that are likely to be affected and update the software in the corresponding control units.

Recalled models: C-CLASS · 42 vehicles

It has been identified that the pins within the electric power assisted steering control unit may not have been contact welded correctly. This can result in an open circuit which will lead to a loss of power steering assistance and possible loss of control of the vehicle.

Fix: Recall all affected vehicles and replace electric power assisted steering.

Recalled models: C CLASS · 14 vehicles

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 possibility of fire.

Fix: 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.

Recalled models: C CLASS · 5 vehicles

A high pressure fuel line to the fuel pump may work looses and allow diesel to leak

Fix: On affected vehicles replace fuel line

Recalled models: C CLASS · 3,591 vehicles

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.

Fix: On affected vehicles replace the SRS control Unit.

Recalled models: C CLASS · 31,091 vehicles

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.

Fix: 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.

Recalled models: C CLASS · 27 vehicles

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.

Fix: Recall the vehicles that are likely to be affected and replace the high pressure fuel lines.

Recalled models: C CLASS · 1,327 vehicles

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.

Fix: Recall the vehicles that are likely to be affected and replace the exhaust camshaft.

Recalled models: C CLASS · 395 vehicles

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.

Fix: Correctly mount oil cooler pipes.

Recalled models: C CLASS · 5,389 vehicles

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.

Fix: 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.

Recalled models: C CLASS · 10 vehicles

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 status will be notified by the passenger air bag warning system.

Fix: Check control unit installation and correct if necessary. Where necessary replace passenger seat cushion.

Recalled models: C CLASS · 11 vehicles

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.

Fix: 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.

Recalled models: C CLASS · 3 vehicles

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 a possible fall in fuel pressure. This fall in fuel pressure could either result in the engine not starting or in worst cases causing the engine to cut out or stall. This could affect the drivers ability to control the vehicle.

Fix: Recall all likely to be affected vehicles to install an additional clip to the jet pump.

Recalled models: C CLASS · 1,364 vehicles

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. Furthermore all safety systems remain fully functional.

Fix: Recall all affected vehicles to update the engine control unit software.

Recalled models: C CLASS · 437 vehicles

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.

Fix: On affected vehicles replace the chain tensioner sealing ring.

Recalled models: C CLASS · 61,672 vehicles

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.

Fix: Recall all affected vehicles to check and if required replace the steering coupling.

Recalled models: C CLASS · 8,140 vehicles

The flange of the fuel filter may leak due to a non-compliance in the supplier's production process. Should this occur a fuel odour may arise or fuel escape.

Fix: Recall the vehicles that are likely to be affected to replace the fuel filter.

Recalled models: C CLASS · 806 vehicles

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.

Fix: Recall the vehicles that are likely to be affected to replace the charge air hose.

Recalled models: C CLASS · 6,090 vehicles

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.

Fix: Check filter and replace as necessary.

Recalled models: C CLASS · 22,298 vehicles

Fuel may leak from the fuel filter housing onto the road surface and thereby make the road slippery for road users.

Fix: Recall the vehicles that are likely to be affected to replace the fuel filter housing if it is leaking.

Recalled models: C CLASS · 2,972 vehicles

Some vehicles may have been fitted with incorrect specification brake discs. This in extreme cases may have an affect on the brake efficiency should the vehicle have to carry out an emergency stop.

Fix: Recall all affected vehicles for the replacement of the rear brake discs.

Recalled models: C CLASS · 4 vehicles

It is possible that a power assisted steering fluid leak could occur on the connection from the connection on the fluid line to pump. Drivers should be made aware of the concern by noise being emitted whilst the vehicle is being driven.

Fix: Recall all affected to check the connection and if required replace the sealing ring.

Recalled models: C CLASS · 22,586 vehicles

It has been identified that during production or a repair faulty Active Body Control (ABC) acceleration sensors may have been fitted. This has the potential to cause vibrations at the front axle thus influencing the driving stability and operational safety.

Fix: Recalled vehicles will have the ABC acceleration sensor checked and replaced as necessary.

Recalled models: C CLASS · 256 vehicles

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

Fix: Recall affected vehicles and replace crankshaft sensor

Recalled models: C CLASS · 19,331 vehicles

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

Fix: Recall affected vehicles and replace SAM control unit

Recalled models: C CLASS · 72 vehicles

A fuse within an electronic control module may become loose. This can result in the vehicle failing to start. In the worst case the engine may cut out whilst the vehicle is being driven.

Fix: Recalled vehicles will have the subject module replaced.

Recalled models: C CLASS · 29 vehicles

The differential pressure sensor for the diesel particulate filter can fail due to contamination of the protective gel layer by exhaust gases. This will result in the car reverting to limp home mode (restricted engine speed).

Fix: Replace the differential pressure sensor with the latest modified type.

Recalled models: C CLASS · 4,869 vehicles

Rear Seat Belt may not engage correctly

Fix: Recall affected vehicles and replace seat belt buckle

Recalled models: C CLASS · 4,372 vehicles

It is possible that due to a previous minor collision which the driver may have considered insignificant the bonnet securing hook may have been damaged which could result in the opening of the bonnet if it has not been closed correctly.

Fix: Recall all affected vehicles for the replacement of the hook with a modified hook.

Recalled models: C CLASS · 2 vehicles

It is possible that the steering coupling at the union with the steering gear may not be correctly positioned and/or sufficiently torqued. This could lead to the steering gear becoming detached from the steering column with subsequent loss of steering control.

Fix: Check the position of the steering coupling and the fasteners for correct torque.

Recalled models: C CLASS · 16 vehicles

Exposure to high humidity conditions may result in corrosion that can cause the drivers front air bag to deploy unintentionally.

Fix: Recall affected vehicles and replace air bag.

Recalled models: C CLASS · 7,041 vehicles

There is a possibility that the end part of the exhaust pipe could break off at the welding seam to the rear of the muffler. Hot exhaust gases could in isolated cases cause the risk of substantial consequential heat damage in the rear region of the vehicle.

Fix: Recall affected vehicles and replace rear exhaust section with a stainless steel version if not already replaced due to regular muffler wear.

Recalled models: C CLASS · 7,213 vehicles