2012 Mercedes-Benz M166 technical service bulletins
101 technical service bulletins and manufacturer communications cover the 2012 Mercedes-Benz M166.
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- Throttle lift-off clunking noises at drive shafts of rear axle
- Info-Call/S24H-Call/MB Contact: Change of language setting at customer request
- Audio 20: Symbols in the status line in the central display can overlap
- Check right front air suspension strut, replace if necessary
- Comand
- Fault message "AIRMATIC" or "Active Curve System" in instrument cluster
- Garmin MAP PILOT: Traffic information service and possibly voice control inoperative after navigation...
- Parking Pilot picture in COMAND display blurred
- Message "SOS
- Message in instrument cluster "Collision Prevention Assist Inoperative"
- Vehicle does not start, battery discharged.
- Height adjustment of electric steering column inoperative
- Creaking/crackling noises from area of front axle wheel bearing
- Model series 166 NAG2 (VGS4, DAS3) OM642, initial engagement jerk in R
- Engine indicator lamp lights up and/or PreSafe, Blind Spot Assist and Distronic error messages in...
- Malfunction of additional battery in IC and fault code B11C11B in CBC (SAM) N10
- Front active multicontour seat/ rear multicontour seats/ massage/ pump inoperative and no communication...
- AMG Performance steering wheel heavily worn/soiled
- Model series 166 NAT2 (VGS4, DAS3) OM642, initial engagement jerk towards R
- Backrest flap mechanism on 2nd seat row nonfunctional or sluggish
- Headlamps fogged
- Model series 166 chafe mark on wiring harness
- Odor from the air conditioning
- Side windows may make noises when closing and opening, or reverse direction when closing.
- Facebook app cannot be opened
- Engine diagnosis warning lamp lights up. The fault code (FC) P0101FA or P0101Fb or P0101FC is logged in...
- Uncomfortable 1-2 and 3-2 shifts in MODEL 166 (ML) with ENGINE 276.955
- Uncomfortable 1-2 and 3-2 shifts in MODEL 166 (ML) with ENGINE 276.955 without CODE 430 (Off-road...
- Intermittently reduced power, faults including some referring to exhaust back pressure sensor logged
- Engine noises after engine start
- Engine diagnosis warning lamp lights up
- Uncomfortable 1-2, 2-3 and/or 3-4 acceleration upshifts with cold transmission oil on MODEL 166 with...
- Heating element of AdBlue tank has malfunction, fault code 20BE1B and/or 20BD1B logged in BlueTec control unit
- Gear range D or R cannot be engaged
- Becker MAP PILOT: Navigation display freezes briefly in the case of physical shocks
- Model series 166
- Check Engine Light (CEL) on, DTC fault code(s) concerning throttle valve actuator
- Engine diagnosis warning lamp lights up in instrument cluster, fault code U145400: "Implausible data were...
- Night performance of 360° camera too dark
- Fault Code P089300 on 722.9 Transmission with VGS4NAG2
- Procedure in case of slight oil traces on TRANSMISSION 722.9
- Supplemental restraint system (SRS) lamp in instrument cluster lights up; fault code B000213 and/or...
- Mbrace i-call may not complete
- IPhone mobile phone: Various complaints after software update to iOS8
- Drive Kit Plus: Digital DriveStyle app does not launch automatically
- Fault in particulate sensor
- Comand
- Creaking noise when adjusting electrical steering column
- Fault code P245997, P246397, P245900, P246385 or P246309 stored in engine control unit
- Complaints about poor wiping effect of winshield wiper
- SENTEX gate operator with Clik Card Remote not compatible with Homelink
- Fault message in instrument cluster on engine start "Power Steering Malfunction, Service Required"
- SCN code the Engine Control Module
- Squeaking noise from top of B-pillar when raising and lowering front door side window
- Engine diagnosis warning lamp active
- Warning message in instrument cluster
- Uncomfortable 1-2, 2-3 and/or 3-4 acceleration upshifts with cold transmission oil in MODEL 166 with...
- Audio/COMAND display: Sporadic failures of central display
- Fault code P045600 or P044200 without complaints about engine running characteristics
- Sound system: Intermittent loss of sound after engine start
- Fault codes for combustion misfiring shortly after cold start
- Friction power of torque converter lockup clutch is too high (FC 2783) or actuation of torque converter...
- Procedure in case of slight oil traces on TRANSMISSION 722.9 with CODE B03
- Blind Spot Assist inoperative.
- The rear seat heating cannot be activated when the customer has set the ambiance illumination to "Neutral"...
- This Customer 1 Action has been initiated because certain mbrace subscribers were recently contacted by...
- Rear seat heating cannot be activated
- Thumping noises from front axle when driving over bumps on road.
- Comand online: mute function no longer active after a restart
- Comand online: intermittently no audio output after engine start.
- Customer experiences low battery conditions, resulting in jump starts, and eventually requiring battery...
- The COMAND unit does not start or the COMAND display remains dark
- Mobile phone in general: The called party is sometimes difficult to understand in the vehicle,...
- Update Transmission Control Module Software
- Side windows make noise or reverse when closing
- Engine shuts off immediately after starting
- Fault code(s) 13BA00, 13BB00, 13BC00, 13BD00, 13BE00, 13BF00
- Vehicle drops at one or more suspension struts.
- Malfunctions of various control units and/or on-board power supply problems caused by water in the control...
- Mobile phone in general: The driver is sometimes poorly understood by the receiver, background noise is...
- Comand
- Lamp unit fogged/droplets forming
- Garage door opener cannot be programmed or the range is too short
- Squeaking/honking noise" from area of front axle during strong suspension jounce or rebound.
- Noises in area of B-pillar trim/ belt height adjuster in model series 166
- Automatic liftgate intermittently does not open
- Wind deflector net loose
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