Technical Service Bulletins (TSBs) for the 2012 ML550 are official communications between Mercedes-Benz & their dealerships that describe processes for troubleshooting or fixing certain common problems. All vehicle manufacturers are required by U.S. law to make their TSBs available to the public.

    STEERING

    • TSB #LI46-35P059241

      Date Announced:
      JUN 20, 2014
      NHTSA ID:
      #10056472

      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. Read More »

    • TSB #LI46-20P-055943

      Date Announced:
      APR 24, 2013
      NHTSA ID:
      #10052151

      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. Read More »

    STEERING: STEERING WHEEL/HANDLE BAR

    • TSB #LI46-10P-054715

      Date Announced:
      OCT 14, 2012
      NHTSA ID:
      #10050861

      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. Read More »

    STEERING:COLUMN

    • TSB #LI46-20P-055943

      Date Announced:
      APR 24, 2013
      NHTSA ID:
      #10052151

      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. Read More »

    STEERING:GEAR BOX (OTHER THAN RACK AND PINION)

    • TSB #LI46-20P-055943

      Date Announced:
      APR 24, 2013
      NHTSA ID:
      #10052151

      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. Read More »

    SUSPENSION:FRONT

    • TSB #SC-2012110001

      Date Announced:
      DEC 01, 2012
      NHTSA ID:
      #10050862

      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. *PE Read More »

    SUSPENSION:FRONT:MACPHERSON STRUT

    • TSB #SC-2012110001

      Date Announced:
      DEC 01, 2012
      NHTSA ID:
      #10050862

      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. *PE Read More »

    ENGINE (PWS)

    • TSB #LI-30-20P058689

      Date Announced:
      MAR 13, 2014
      NHTSA ID:
      #10056233

      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. *PE Read More »

    • TSB #SC-2013050002

      Date Announced:
      SEP 01, 2013
      NHTSA ID:
      #10053732

      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). Read More »

    ENGINE AND ENGINE COOLING:ENGINE:DIESEL

    • TSB #SC-2013050002

      Date Announced:
      SEP 01, 2013
      NHTSA ID:
      #10053732

      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). Read More »

    ELECTRICAL SYSTEM

    • TSB #LI54-18P-057840

      Date Announced:
      DEC 04, 2013
      NHTSA ID:
      #10056064

      XENTRY (MERCEDES): BETWEEN THE FRONT BUMPER TO INTERIOR WIRING HARNESS, THERE MAY BE CORROSION AT ELECTRICAL CONNECTING POINT. *PE Read More »

    ELECTRICAL SYSTEM:WIRING:FUSES AND CIRCUIT BREAKERS

    • TSB #LI54-15-P057373

      Date Announced:
      FEB 28, 2014
      NHTSA ID:
      #10055333

      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. Read More »

    ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL

    • TSB #LI46-35P059241

      Date Announced:
      JUN 20, 2014
      NHTSA ID:
      #10056472

      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. Read More »

    • TSB #LI82-95-P054406

      Date Announced:
      AUG 10, 2012
      NHTSA ID:
      #10046379

      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. *PE Read More »

    ELECTRICAL SYSTEM:SOFTWARE

    • TSB #SC-2013050002

      Date Announced:
      SEP 01, 2013
      NHTSA ID:
      #10053732

      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). Read More »

    VEHICLE SPEED CONTROL:ACCELERATOR PEDAL

    • TSB #LI-30-20P058689

      Date Announced:
      MAR 13, 2014
      NHTSA ID:
      #10056233

      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. *PE Read More »