2018 Mercedes-Benz C300 Technical Service Bulletins

188 technical service bulletins (TSBs) are on record for the 2018 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.

• 10162631Jun 27, 2019Visibility (wipers, defrost, mirrors). Outside mirror folding out/in nonfunctional
• 10162206May 28, 2019Engine cooling. Check coolant hose from expansion reservoir to cooler and replace if necessary
• 10162197May 22, 2019Electrical system. "High-voltage battery warning message" in instrument cluster
• 10162198May 21, 2019Hybrid propulsion system. Electric range is reduced after brief period
• 10162200May 20, 2019Electrical system. COMAND Online (code 531): Wrong date in system settings, incorrect time in instrument cluster
• 10162185May 20, 2019Electrical system. NTG 5.5 head unit - Browser shows "Fault during authentication" message
• 10162191May 2, 2019Equipment. Head-up display (HUD, code 463) - lines on the display, display flickers
• 10162174May 2, 2019Lane departure. BR205 Facelift - Blind Spot Assist may activate without obvious cause
• 11031729Mar 20, 2019Engine. The purpose of this letter is to advise you of additional benefits that Mercedes-Benz is providing to you regarding your vehicle ownership.
• 11031616Mar 13, 2019Engine. Daimler AG (“DAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on the various Model Year (“MY”) 2014 - 2018 Mercedes-Benz vehicles listed below, the engine control unit (ECU) software may not meet current specifications. In certain circumstances when the vehicles are parked for a long duration, an erroneous activation of the “Check Engine Lamp” for the outside temperature sensor might occur.
• 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
• 10135514Feb 16, 2018Electrical system. Update HERMES control unit software
• 10158321Oct 5, 2017Equipment, Exterior lighting. LED light on thermal cup holder in rear passenger compartment of BR 222 flickers
• 10158239Sep 19, 2017Interior lighting. Partial operation of interior ambient lighting
• 10205232Nov 30, 2016Equipment. Disturbed Antenna Signal.
• 10205242Nov 29, 2016Equipment. Navigation system permanently displays "Activating".
• 10205266Nov 21, 2016Equipment. Map pocket on front seat backrest trim does not close.
• 10205240Aug 29, 2016Equipment. Reset the customer-specific data and perform a software update of the AUDIO20 control unit.
• 10205223Aug 26, 2016Exterior lighting. Headlamp fog.
• 10205156Aug 26, 2016Transmission and drivetrain, Other or unknown. Intial startup not possible after replacement of transmisson 725.0 or of electrohydraulic controller unit.
• 10205247Aug 25, 2016Equipment. Traffic information service and posibly the voice control, nonfunctional after navigation software update.
• 10205241Aug 25, 2016Equipment. Navigation system permanently displays "Activating".
• 10205230Aug 15, 2016Equipment. CD/DVD No longer ejected or drawn in.
• 10205252Aug 11, 2016Electrical system. High voltage battery warning message in instrument cluster.
• 10205154Aug 5, 2016Engine cooling, Other or unknown. Gasket may settle causing a slight oil leak.
• 10136089Jun 28, 2016Electrical system. ESP, BAS, PRE-SAFE - Fault message in instrument cluster
• 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"
• 10166076Jul 8, 2014Equipment. The Audio 20 control unit (A26/17) or COMAND Online control unit (A26/17) does not start (central display dark/ no audio output) and is not recognized with XENTRY Diagnostics although the fuses and the power supply are OK.
• 10166075Jul 8, 2014Electrical system. The animation in individual vehicle settings such as, e.g. mirror folding function or seat belt adjustment is missing. Note: The functions of these vehicle settings are not affected.
• 10167084Apr 10, 2014Visibility (wipers, defrost, mirrors). Passenger side outside mirror glass adjusts itself at random at ignition on/off
• 10167571Mar 10, 2014Equipment. In addition to the information published in the Introduction into Service Manual, note maintenance interval changes for model 205.
• 10167531Mar 10, 2014Equipment. MY-All Model 205, Maintenance Interval
• 10205215Jul 30, 2013Visibility (wipers, defrost, mirrors), Vehicle speed control, Equipment…. Window lifter and outside mirror on passenger side malfunction after replacement of door 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).

← All problems reported for the 2018 Mercedes-Benz C300