2012 Mercedes-Benz ML350 Technical Service Bulletins

132 technical service bulletins (TSBs) are on record for the 2012 Mercedes-Benz ML350. 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.

• 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.
• 10053732Sep 1, 2013Engine, Electrical system, Engine cooling. Mercedes: the engine control module software fails to correspond with current configuration production and will be updated by an authorized dealer. Models 2012 166 (ml350, 550, 63, gl 350, 450, 550, 63).
• 10205234Aug 21, 2013Electrical system. Software update of COMAND Online control unit.
• 10052168Aug 21, 2013Vehicle speed control. Xentry (mercedes): some vehicles receive, optical and acoustic, warning message regarding collision prevention assist, without obvious reason, due to offset of short range sensor. Models 166. *pe update 8/25/15.
• 10167008Aug 17, 2013Electrical system. Engine diagnosis warning lamp lights up. Fault code 20B91B, 20B913 (The output for the heating element of the AdBlue pressure line has an electrical fault or an open circuit) is stored in the SCR 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.
• 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…
• 10167577Jul 23, 2013Visibility (wipers, defrost, mirrors). Since 12/2012 (model 166) and since 06/2013 (model 242) the glass breakage loops are no longer in the side windows and rear window. Suitable interior protection ensures that the interior monitoring function continues to operate correctly.
• 10167549Jul 22, 2013Suspension. Thumping noises at the front axle when driving over road bumps
• 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).
• 10167539Jul 16, 2013Engine cooling. Engine rattling noise after engine start for several seconds
• 10167548Jul 15, 2013Suspension. 1. In vehicles up to VIN 166 ### #A 097760 without code 803, the following fault code is logged in the quick test: P1C9B00. The control unit 'Roll control' has a malfunction. 2. In vehicles up to VIN 166 ### #A 097760 with code 803 or vehicles as of VIN 166 ### #A 097761, the following fault code is logged in the quick test: P1C9564. The rotation direction valve of the torsion bar ''Front axle'' has a malfunction.
• 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).
• 10167565Jul 1, 2013Equipment. A flapping/rattling noise can be heard from the area of the center console towards the rear.
• 10167553Jul 1, 2013Fuel system. Combination message: "Clean fuel filter" is displayed. The fault code 162500 (water level message - Bosch) or P226997 (water level message - Delphi) or 171600 (filter load - Bosch) is stored in the engine control unit.
• 10052151Apr 24, 2013Steering. Xentry (mercedes): rattling noise coming from the area of the steering column tube system, when driving over rough road and when accelerating or braking, there would be cracking noises. Models 164, 251. No model years listed.
• 10059558Jan 7, 2013Equipment. Summary to be provided on a future date.
• 10059847Dec 7, 2012Electrical system, Equipment. Summary to be provided on a future date.
• 10050862Dec 1, 2012Suspension. Mercedes: due to a possible leakage at air suspension strut, hissing noises coming from front axle and may need to replace one or both of front struts. Models 2012 166.
• 10050861Oct 14, 2012Steering. Mercedes (xentry): due to amine deposits from steering wheel foam, horn plate of steering wheel, short circuited, causing the multifunction buttons, on steering wheel, to be non-functional. Models 164, 251. No model years listed.
• 10046379Aug 10, 2012Electrical system. Xentry (mercedes): after taking vehicle out transport mode, instrument cluster displays message sos mbrace service not activated. Models 2013 166, 172, 204, 207, 212, 218, 231, 463.
• 10046319Aug 9, 2012Electrical system, Steering. Xentry (mercedes); electric steering control unit, in some vehicles, has implausible fault entry due to software needing updating. Models ml 350. No model years listed.
• 10044599May 9, 2012Equipment. Xentry (mercedes): on some vehicles, whenever the reverse gear is engaged, the reverse camera fails to show in display central.
• 10044222Apr 20, 2012Seat belts. Mercedes benz: front or rear seat belt does not roll up correctly. Dirt deposits on the seat belt guide due to soiled seat belt. Also included models 169, f cell, 246, and 231. No model years given.
• 10044200Apr 2, 2012Transmission and drivetrain. Xentry: mercedes benz: grunting/creaking sound from the area of the front axle when braking, driving over surface undulations, negotiating tight corners, or while maneuvering. Model years unknown.
• 10044199Mar 28, 2012Engine cooling. Xentry: mercedes benz: vehicle stumbles and bucks for a few minutes after a cold start when outside temperature is low (no dtcs). Engine runs rough in a warm up phase. No model years given.
• 10044181Mar 12, 2012Steering. Xentry: rattling/thumping noises from the area of the steering on rough roads or when driving over road undulations. No model years given. Also included models 168 and 172.
• 10048180Mar 1, 2012Engine cooling, Electrical system. Mercedes: engine control module software, for diesel engine vehicles, fails to meet current obd specifications and will need to be updated. Models 2012 166, 221.
• 10041649Aug 1, 2011Steering. Mercedes: the harness connection on the electric power steering rack should be checked and if necessary be replaced.

← All problems reported for the 2012 Mercedes-Benz ML350