2012 Mercedes-Benz C250 Technical Service Bulletins

112 technical service bulletins (TSBs) are on record for the 2012 Mercedes-Benz C250. 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.

• 11031594Oct 29, 2020Visibility (wipers, defrost, mirrors). This NCU replaces the prior NCUs issued on May 18, June 25, 2020 and October 1, 2020 and contains important workshop instructions on how the HVAC Service Warranty repair must be carried out. To enhance the satisfaction of our customers, avoid further costs of litigation, and return focus to its core businesses, Mercedes-Benz USA, LLC (MBUSA) has entered into a settlement regarding claims relating to alleged mold…
• 10177571Jun 30, 2020Exterior lighting, Equipment. Lamp unit fogged or droplets forming. Due to the vent openings, the lamp unit is an "open system". This means that acidic gases, moisture, dirt and exhaust gases can penetrate it. This can result in deposits on the diffuser and lens. Check housing cover of lamp unit for natural fogging or dew as per GI82.10-P-009047. . 1. If a reduction in the degree of fogging is visible, the desiccant packs can be used once the…
• 10176670May 21, 2020Equipment. To enhance the satisfaction of our customers, avoid further costs of litigation and return focus to its core businesses, Mercedes-Benz USA, LLC (MBUSA) has entered into a settlement regarding claims relating to alleged mold and mildew type odors originating from the HVAC system in certain Mercedes-Benz vehicles.
• 10164811Aug 5, 2019Transmission and drivetrain. Throttle lift-off clunking noises at drive shafts of rear axle
• 10164810Aug 5, 2019Equipment, Suspension. Throttle lift-off clunking noises at drive shafts of front axle
• 10160738Apr 11, 2019Electrical system, Engine. Update engine electronics (ME-SFI) control unit software
• 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.
• 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.
• 10135599Mar 24, 2015Suspension. Clunking noise from front axle suspension strut or rear axle shock absorber on short strokes of the damper
• 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.
• 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.
• 10167498Mar 13, 2014Electrical system. ESP warning message in instrument cluster. One of the fault codes C219700 or 630900 is logged in the ESP control unit (N30/4).
• 10056233Mar 13, 2014Vehicle speed control, Engine. Xentry (mercedes): in the instrument cluster, an esp warning due to implausible accelerator pedal signal received from engine control unit. Model 2012 172, 212, 218, 207, 204.
• 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, 2014Electrical system, Transmission and drivetrain. 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…
• 10055333Feb 28, 2014Electrical system. Xentry (mercedes): the fuse and relay boxes (srb) in engine compartment or rear compartment has a malfunction and disruptions to communication paths causing a no start in vehicle. Model 2012-2013 204, 207, 212, 218, 231, 246, 176, 117, 172.
• 10167019Feb 25, 2014Lane departure. Blind Spot Assist inoperative.
• 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.
• 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, 2014Body and structure, Tires. 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
• 10051975Dec 4, 2013Suspension. Xentry (mercedes): with steering at full lock, noise can be heard, like knocking and/or creaking, coming from area of front axle when maneuvering. Models 203 (c240, 320, 32, 230), 171 (slk350, 55, 280), 209 (clk 320, 500, 55, 63), 204 (c300, 350, 250, 63), 207 (e350, 550). No years listed. *pe updated 12/30/13. *pe updated 5/9/14.
• 10059860Sep 26, 2013Electrical system. Summary to be provided on a future date.
• 10045029Sep 13, 2013Exterior lighting. Xentry (mercedes): message will appear indicating high beam assist is activated and is inoperative. Models 204, 212, 207, 221, 216, 218, and 166. No model years listed. *pe updated 11/26/13.
• 10053794Sep 1, 2013Electrical system. Mercedes: the software for engine control module fails to correspond to current production configuration and will need to be updated. Model 2012 172, 204.
• 10053758Sep 1, 2013Equipment, Tires. Mercedes: the information, on some vehicles, regarding spare tire size on the b-pillar tire pressure label, is incorrect and needs to be checked and if necessary, replaced. Model 204 (c and glk 250, 350,300, 63).
• 10205234Aug 21, 2013Electrical system. Software update of COMAND Online control unit.
• 10044601Aug 13, 2013Engine. Xentry (mercedes): check engine light (cel) is activated; stored in engine control unit is very fine leak. Automatic fuel tank leak test software is sensitive and can produces an erroneous diagnosis. Models 204, 212, 218, 221, 216,and 166 with no model years listed. *pe update 11/22/13.
• 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.

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