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TSB List for the 2012 Mercedes-Benz GL450

Technical Service Bulletins (TSBs) for the 2012 GL450 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.

  • ENGINE (PWS)
  • ENGINE AND ENGINE COOLING
  • ENGINE AND ENGINE COOLING:ENGINE:HARD PARTS INTERNAL/MECHANICAL
  • ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL
  • FUEL SYSTEM, GASOLINE
  • POWER TRAIN
  • ELECTRICAL SYSTEM
  • ELECTRICAL SYSTEM:SOFTWARE
  • EXTERIOR LIGHTING:HEADLIGHTS
  • AIR BAGS
  • STRUCTURE:BODY:DOOR
  • SEATS
  • SEATS:FRONT ASSEMBLY:POWER ADJUST
  • LANE DEPARTURE
  • LANE DEPARTURE: BLIND SPOT DETECTION
  • INTERIOR LIGHTING
  • EQUIPMENT
  • EQUIPMENT:ELECTRICAL
  • EQUIPMENT:APPLIANCE:AIR CONDITIONER
  • ENGINE (PWS)

    ENGINE AND ENGINE COOLING

    • TSB #NCU-2023060005

      Date Announced:
      DEC 11, 2023
      NHTSA ID:
      #10248173

      Mercedes-Benz AG ("MBAG"), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (??A?A?MY??A?A?) 2009-2012 GL-Class, ML-Class, R-Class, and S-Class (164/166, 251, 221 platforms) vehicles, the coding for ... Read More »

    ENGINE AND ENGINE COOLING:ENGINE:HARD PARTS INTERNAL/MECHANICAL

    ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL

    • TSB #NCU-2020110011

      Date Announced:
      NOV 11, 2020
      NHTSA ID:
      #10184799

      Mercedes-Benz USA, LLC (?MBUSA?) has entered into an agreement with the United States Department of Justice (DOJ), the Environmental Protection Agency (EPA), the California Air Resources Board (CARB), and the California Attorney General?s ... Read More »

    FUEL SYSTEM, GASOLINE

    • TSB #LI01.30-P-058630

      Date Announced:
      MAR 21, 2014
      NHTSA ID:
      #10167487

      Minor leaks at the oil duct of the left or right cylinder head of engines 157, 276 and 278. 1. Left cylinder head: Oil passage plug hole on left beside mechanical vacuum pump. 2. Read More »

    POWER TRAIN

    • TSB #LI27.20-P-059067

      Date Announced:
      MAY 16, 2014
      NHTSA ID:
      #10135970

      Delayed 2-3 Upshift Read More »

    • TSB #LI27.20-P-055758

      Date Announced:
      JUL 30, 2013
      NHTSA ID:
      #10167546

      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. Read More »

    ELECTRICAL SYSTEM

    • TSB #NCU-2023060005

      Date Announced:
      DEC 11, 2023
      NHTSA ID:
      #10248173

      Mercedes-Benz AG ("MBAG"), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (??A?A?MY??A?A?) 2009-2012 GL-Class, ML-Class, R-Class, and S-Class (164/166, 251, 221 platforms) vehicles, the coding for ... Read More »

    • TSB #LI01.30-P-058630

      Date Announced:
      MAR 21, 2014
      NHTSA ID:
      #10167487

      Minor leaks at the oil duct of the left or right cylinder head of engines 157, 276 and 278. 1. Left cylinder head: Oil passage plug hole on left beside mechanical vacuum pump. 2. Read More »

    • TSB #LI30.20-P-058689

      Date Announced:
      MAR 13, 2014
      NHTSA ID:
      #10167498

      ESP warning message in instrument cluster. One of the fault codes C219700 or 630900 is logged in the ESP control unit (N30/4). Read More »

    • TSB #S-SC- 2013090008

      Date Announced:
      FEB 01, 2014
      NHTSA ID:
      #10167040

      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. Read More »

    • TSB #LI82.95-P-056655

      Date Announced:
      JUL 12, 2013
      NHTSA ID:
      #10167564

      Customer experiences low battery conditions, resulting in jump starts, and eventually requiring battery replacement. Read More »

    • TSB #LI82.85-P-055695

      Date Announced:
      JUL 08, 2013
      NHTSA ID:
      #10167563

      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). Read More »

    ELECTRICAL SYSTEM:SOFTWARE

    EXTERIOR LIGHTING:HEADLIGHTS

    AIR BAGS

    • TSB #TakataRecall

      Date Announced:
      FEB 26, 2016
      NHTSA ID:
      #10235996

      Additional information around the recent recall announcement affecting approximately 705,983 Mercedes-Benz passenger vehicles involving Takata driver-side airbags containing PSDl-5 type inflators Read More »

    • TSB #RecallUpdate

      Date Announced:
      FEB 11, 2016
      NHTSA ID:
      #10235978

      Recall Campaign announcement for Takata driver airbags. Read More »

    STRUCTURE:BODY:DOOR

    SEATS

    • TSB #LI91.18-P-077075

      Date Announced:
      DEC 04, 2023
      NHTSA ID:
      #10248162

      Crease formation on genuine leather seat covers in vehicles with low mileage ??A?A? Objects left on the seats for extended periods of time (pressure marks). ??A?A? Objects wedged between the seat backrest and seat cushion (e.g. Read More »

    • TSB #LI91.22-P-059388

      Date Announced:
      JUL 12, 2014
      NHTSA ID:
      #10166097

      Electric motor for the folding rear backrest of the 3rd seat row is inoperative or makes noises during adjustment Read More »

    • TSB #LI91.12-P-059378

      Date Announced:
      JUL 09, 2014
      NHTSA ID:
      #10166096

      The release loop of the Easy Entry seat in the 2nd seat row is awkward to operate as it is difficult to access Read More »

    SEATS:FRONT ASSEMBLY:POWER ADJUST

    LANE DEPARTURE

    • TSB #LI30.30-P-055823

      Date Announced:
      FEB 11, 2014
      NHTSA ID:
      #10166988

      Collision Prevention Assist (CPA) may warn for no obvious reason (optical and/or acoustic warning message). Read More »

    LANE DEPARTURE: BLIND SPOT DETECTION

    INTERIOR LIGHTING

    EQUIPMENT

    • TSB #NCU - HVAC Warra

      Date Announced:
      MAY 21, 2020
      NHTSA ID:
      #10176670

      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 ... Read More »

    • TSB #GI88.40-P-057430

      Date Announced:
      FEB 03, 2014
      NHTSA ID:
      #10166976

      Message in instrument cluster "DISTRONIC PLUSCurrently Unavailable - See Owner's Manual" Read More »

    • TSB #2013040001

      Date Announced:
      APR 19, 2013
      NHTSA ID:
      #10059570

      SUMMARY TO BE PROVIDED ON A FUTURE DATE. Read More »

    • TSB #2013020001

      Date Announced:
      MAR 01, 2013
      NHTSA ID:
      #10059567

      SUMMARY TO BE PROVIDED ON A FUTURE DATE. Read More »

    • TSB #2012100005

      Date Announced:
      NOV 16, 2012
      NHTSA ID:
      #10059862

      SUMMARY TO BE PROVIDED ON A FUTURE DATE. Read More »

    EQUIPMENT:ELECTRICAL

    • TSB #C1A140101

      Date Announced:
      FEB 11, 2014
      NHTSA ID:
      #10166975

      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 ... Read More »

    EQUIPMENT:APPLIANCE:AIR CONDITIONER

    • TSB #LI8330P0496447

      Date Announced:
      NOV 15, 2016
      NHTSA ID:
      #10205249

      No cooling output, fault code 9006 stored in air conditioning control unit. Read More »

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