2014 Mercedes-Benz C300 Technical Service Bulletins

103 technical service bulletins (TSBs) are on record for the 2014 Mercedes-Benz C300. TSBs are notes manufacturers send to dealers about repair procedures for issues seen in the field. They are not recalls and do not by themselves mean a vehicle has a fault.

• 10160738Apr 11, 2019Electrical system, Engine. Update engine electronics (ME-SFI) control unit software
• 10151999Aug 21, 2018Equipment. MB App iHeart Radio is no longer available after a head unit update
• 10151959Jul 23, 2018Seat belts. Seat belt extender toothed rack sluggish or makes noises
• 10144075Mar 12, 2018Engine cooling. Check Engine Light is on with DTC P030185/ P030685 for misfire cylinder 1 and 6.
• 10144074Mar 2, 2018Fuel system. Update fuel system control unit (FSCU) software
• 10158329Oct 9, 2017Engine. Oil in engine wiring harness
• 10205225Aug 26, 2016Exterior lighting. Headlamps fogged.
• 10205239Aug 16, 2016Equipment. "Anti-theft protection activated".
• 10136089Jun 28, 2016Electrical system. ESP, BAS, PRE-SAFE - Fault message in instrument cluster
• 10235978Feb 11, 2016Air bags. Recall Campaign announcement for Takata driver airbags.
• 10058561Jul 27, 2015Electrical system, Engine. Xentry (mercedes): vehicle shuts down at 5 mph but engine able to be restarted via eco start stop due to mismatched levels of software. Model 2014-15 217, 222.
• 10058545Jul 1, 2015Engine. Xentry (daimler): due to unfavorable tolerance of piston wrist pin, resulting in knocking, clattering/rattling noises, causing an enlarge end float connecting rod in piston, from crank assembly of engine when cold. No model or years listed.
• 10058547Jun 30, 2015Seat belts, Seats. Xentry (daimler): some vehicles experience an incomplete normalization of seat cushion and blocking between seat belt buckle and control unit detects blockage and aborts normalization sequence. Model 222 (code 232 + 224 +305). No years listed.
• 10058548Jun 4, 2015Engine. Xentry (daimler): stored in engine control unit are faults relating to throttle valve actuator and/or oxygen sensor due to occasional transition resistance at contacts, causing engine diagnosis warning lamp to be inactive. Model all.
• 10135599Mar 24, 2015Suspension. Clunking noise from front axle suspension strut or rear axle shock absorber on short strokes of the damper
• 10135638Oct 16, 2014Steering. Red display message in instrument cluster "Power Steering Malfunction - See Owner's Manual"
• 10135621Oct 10, 2014Steering. Red display message in instrument cluster "Power Steering Malfunction - See Owner's Manual"
• 10059775Aug 11, 2014Equipment, Engine. Summary to be provided on a future date.
• 10166093Jul 12, 2014Seats. Noises from flat spring core in backrest
• 10166080Jul 12, 2014Seats. The pneumatic 4-way lumbar support fails. Lumbar support pockets cannot be filled up or they drain.
• 10166099Jul 10, 2014Seats. Pneumatic comfort systems with insufficient performance, entirely inoperative or leaky.
• 10057069Jul 1, 2014Exterior lighting. Mercedes benz: model 216 the manufacturer of mercedes benz initiated this service campaign which has determined the head lamp control module code & spotlight function may not be available.
• 10056472Jun 20, 2014Electrical system, Steering. Xentry (mercedes): after engine has started, several issues occurs, an acoustic warning sounds is heard, the instrument cluster displays warning message power steering malfunction, service required. Steering system is sluggish. Model 117, 156, 176, 242, 246.
• 10167532Mar 10, 2014Equipment. A production fault means that the telematics DVD A 166 827 14 00 cannot be used. Because of this the previous telematics DVDs A 204 827 03 65 and A 204 827 10 65 must continue to be used for control unit programming. If required, these are still available for ordering. With XENTRY DVD 03/2014 a new telematics DVD with part number A 166 827 21 00 is being shipped. This telematics DVD replaces the previous telematics…
• 10167525Mar 3, 2014Equipment. Apple products (iPhone or iPod) are not charged via the serial USB interface of the COMAND Online control unit (A40/3) in the stowage compartment of the center console.
• 10167510Feb 28, 2014Transmission and drivetrain, Electrical system. The vehicle cannot be started The vehicle may start by itself shortly after the startup attempt with a delay, as the relay can be late closing. and/or The gear selection is displayed, but no gear is engaged. Gear selection is not possible. and/or Rear window wiper inoperative. and/or Various fault codes concerning disrupted communication paths are stored and/or the corresponding control units are not displayed in…
• 10167009Feb 25, 2014Electrical system. Battery discharged, vehicle does not start.
• 10167007Feb 25, 2014Electrical system. Engine diagnosis warning lamp active. Fault code 20BE1B and/or 20BD1B (The heating element of the AdBlue tank has a malfunction) is logged in the Blue-Tec control unit.
• 10167005Feb 25, 2014Electrical system. Engine diagnosis warning lamp is active or message "Starts remaining xxx" in instrument cluster.
• 10167002Feb 25, 2014Steering. Creaking noise when making vertical or longitudinal adjustment to electrical steering column
• 10166994Feb 25, 2014Transmission and drivetrain. Single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end). Heard once when changing from forward to reverse (and vice versa)
• 10167003Feb 18, 2014Steering. Fault code U41600 logged in 'ES' (electric steering) control unit after software update or steering gear replacement. Note: Fault code U41600 means: Implausible data were received from the control unit "Traction system". This fault code can be erased, but is logged again after another ignition sequence. There is no fault message in the multifunction display.
• 10167006Feb 12, 2014Electrical system. Engine diagnosis warning lamp active. Fault code 20BE1B and/or 20BD1B (The heating element of the AdBlue tank has a malfunction) is logged in the Blue-Tec control unit.
• 10166975Feb 11, 2014Equipment. This Customer 1 Action has been initiated because certain mbrace subscribers were recently contacted by mbrace informing them that they need to have an i-button call performed to ensure their mbrace device has registered with the Verizon Telematics systems. If the i-button call failed or if the customer was unable to perform the i-button call, the mbrace agent instructed the customer to make an appointment with…
• 10167015Feb 10, 2014Electrical system. The key is not recognized in the electronic ignition switch, the vehicle cannot be started and/or the automatic transmission may perform an "Automatic P function" at speeds below 6 km/h.
• 10166978Feb 6, 2014Engine cooling. Engine diagnosis warning lamp lights up - Fault code entry (FC) 14A600 or 14A700
• 10167040Feb 1, 2014Electrical system. This Service Campaign has been initiated because Daimler AG (DAG), the manufacturer of Mercedes-Benz vehicles, has determined that the mbrace software does not correspond to current production configuration. An authorized Mercedes-Benz dealer will update the mbrace control module software at the next workshop visit.
• 10167038Feb 1, 2014Tires, Body and structure. This Service Campaign has been initiated because Daimler AG (DAG), manufacturer of Mercedes-Benz vehicles, has determined that the seam seal at the spare tire well may not be to specification. To correct this condition, an authorized Mercedes-Benz dealer will rework the seam seal at the spare tire well at the next workshop visit.
• 10167016Dec 12, 2013Electrical system. The Parktronic system switches to malfunction. The driver notices a fault message (4 red LEDs and 2 sec continuous signal). The following fault codes are stored in the PTS control unit (N62): A23400 - Rear PARKTRONIC warning element 1 has a malfunction. - STORED A23300 - Front PARKTRONIC warning element 1 has a malfunction. - STORED
• 10205248Aug 28, 2013Equipment. "SOS mbrace service not activated".
• 10062335Aug 28, 2013Electrical system. Summary to be provided on a future date.
• 10205234Aug 21, 2013Electrical system. Software update of COMAND Online control unit.
• 10205237Aug 5, 2013Electrical system. The COMAND unit does not start or the display remains dark.
• 10205233Aug 5, 2013Electrical system. Mobile phone cotacts are not transferred completely.
• 10167546Jul 30, 2013Transmission and drivetrain. FC 2783 (Friction power of torque converter lockup clutch is too high) or FC 0741 (Actuation of torque converter lockup clutch not possible) stored in transmission control unit. One possible additional customer complaint could be "poor acceleration" e.g. due to engine intervention. This can affect all NAT2FE+ (7G-TRONIC PLUS) vehicles with engines OM651, OM642LS and M278 in the production period from 04/2011 to…
• 10167550Jul 18, 2013Steering. Single, throttle lift-off, clunking noise from the side shaft when starting off (audible at the wheel). The clunk is heard once when changing from forward to reverse (and vice versa).
• 10167564Jul 12, 2013Electrical system. Customer experiences low battery conditions, resulting in jump starts, and eventually requiring battery replacement.
• 10167554Jul 10, 2013Engine cooling. Engine diagnosis warning lamp activated. Fault code P045600 "Very fine leak" or P044200 "Fine leak" stored in engine control unit.
• 10167563Jul 8, 2013Electrical system. The COMAND unit does not start or the COMAND display remains dark. The COMAND unit cannot be operated. Note: The problem disappears after a lengthy idle period (>6h) or after interrupting the power supply (circuit 30).
• 10167560Jul 8, 2013Exterior lighting. Fault message in display - Right rear turn signal light inoperative

← All problems reported for the 2014 Mercedes-Benz C300