Technical Service Bulletins (TSBs) for the 2008 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.

    STEERING

    • TSB #TB-46-20-61

      Date Announced:
      APR 22, 2008
      NHTSA ID:
      #10025648

      RATTLING/THUMPING NOISE ON ROUGH ROADS AND/OR KNOCKING NOISE WHEN MOVING STEERING IN BOTH DIRECTIONS ON ALL MODEL 164 AND 251 VEHICLES. MODEL YEARS UNKNOWN. *PE Read More »

    STEERING: STEERING WHEEL/HANDLE BAR

    • TSB #TB-46-10-39C

      Date Announced:
      DEC 02, 2008
      NHTSA ID:
      #10028645

      MERCEDES: CHROME PLATING PEELING ON DECORATIVE CAPS ON THE STEERING WHEEL SPOKES, THIS IS DUE TO LESS THAN OPTIMAL ADHESION BETWEEN CHROME PLATING AND BASE MATERIAL. MODELS 164 AND 251. MODEL YEARS UNKNOWN. Read More »

    STEERING:GEAR BOX:SHAFT SECTOR

    • TSB #TB-46-10-32

      Date Announced:
      DEC 02, 2008
      NHTSA ID:
      #10028646

      MERCEDES: GROANING OR DULL, HEAVY CRACKING NOISES FROM STEERING SHAFT AREA. WHEN TURNING STEERING WHEEL OR MOVING OFF OR BRAKING. Read More »

    STEERING:GEAR BOX:SHAFT PITMAN

    • TSB #TB-46-10-32

      Date Announced:
      DEC 02, 2008
      NHTSA ID:
      #10028646

      MERCEDES: GROANING OR DULL, HEAVY CRACKING NOISES FROM STEERING SHAFT AREA. WHEN TURNING STEERING WHEEL OR MOVING OFF OR BRAKING. Read More »

    STEERING:RACK AND PINION

    • TSB #462046

      Date Announced:
      DEC 04, 2008
      NHTSA ID:
      #10020460

      PLAY IN THE RACK AND PINION STEERING SYSTEM. MODELS 203, 209, 210, 211, 215, 220, 230. MERCEDES BENZ. *KB UPDATED 5/13/09. *PE Read More »

    STEERING:RACK AND PINION:RACK

    • TSB #462046

      Date Announced:
      DEC 04, 2008
      NHTSA ID:
      #10020460

      PLAY IN THE RACK AND PINION STEERING SYSTEM. MODELS 203, 209, 210, 211, 215, 220, 230. MERCEDES BENZ. *KB UPDATED 5/13/09. *PE Read More »

    SUSPENSION:FRONT:SPRINGS:AIR SUSPENSION SYSTEM

    • TSB #SB-32-25-82

      Date Announced:
      NOV 19, 2010
      NHTSA ID:
      #10037408

      MERCEDES-BENZ: SHOCK ABSORBER PROCEDURE. *RM Read More »

    • TSB #TB-P-047927

      Date Announced:
      SEP 17, 2009
      NHTSA ID:
      #10032727

      MERCEDES: FOLLOWING FAULT CODES ARE ENTERED IN THE CONTROL UNIT AND DISPLAYED-FC5320 DRAIN VALVE:OPEN CIRCUIT OR INSUFFICIENT VALVE CURRENT IN MODELS SERIES 211, 219; FC5260 DRAIN VALVE OPEN CIRCUIT OR INSUFFICIENT VALVE CURRENT IN MODEL ... Read More »

    • TSB #SB-2008080001

      Date Announced:
      AUG 01, 2008
      NHTSA ID:
      #10028024

      MERCEDES: CHECK AIR SUSPENSION COMPRESSOR AND REPLACE IF NECESSARY. INSUFFICIENT AIR PRESSURE IN THE AIR SUSPENSION SYSTEM MAY RESULT FROM DAMAGE TO THE PRESSURE DISK IN THE AIR SUSPENSION COMPRESSOR. Read More »

    SUSPENSION:FRONT:SPRINGS:AIR SUSPENSION:LINES AND FITTINGS

    • TSB #TB-P-047927

      Date Announced:
      SEP 17, 2009
      NHTSA ID:
      #10032727

      MERCEDES: FOLLOWING FAULT CODES ARE ENTERED IN THE CONTROL UNIT AND DISPLAYED-FC5320 DRAIN VALVE:OPEN CIRCUIT OR INSUFFICIENT VALVE CURRENT IN MODELS SERIES 211, 219; FC5260 DRAIN VALVE OPEN CIRCUIT OR INSUFFICIENT VALVE CURRENT IN MODEL ... Read More »

    SUSPENSION:FRONT:SHOCK ABSORBER

    SUSPENSION:REAR:SPRINGS:AIR SUSPENSION SYSTEM

    • TSB #SB-32-25-82

      Date Announced:
      NOV 19, 2010
      NHTSA ID:
      #10037408

      MERCEDES-BENZ: SHOCK ABSORBER PROCEDURE. *RM Read More »

    • TSB #SB-2008080001

      Date Announced:
      AUG 01, 2008
      NHTSA ID:
      #10028024

      MERCEDES: CHECK AIR SUSPENSION COMPRESSOR AND REPLACE IF NECESSARY. INSUFFICIENT AIR PRESSURE IN THE AIR SUSPENSION SYSTEM MAY RESULT FROM DAMAGE TO THE PRESSURE DISK IN THE AIR SUSPENSION COMPRESSOR. Read More »

    SUSPENSION:REAR:SHOCK ABSORBER

    ENGINE AND ENGINE COOLING:ENGINE

    • TSB #LI-05-20-P

      Date Announced:
      MAY 31, 2011
      NHTSA ID:
      #10039256

      MERCEDES-BENZ: THE MALFUNCTION LIGHT IS ON WITH MULTIPLE POSSIBLE TROUBLE CODES STORED. THERE COULD BE A PROBLEM WITH THE CAMSHAFT AND/OR SCORING OF A PISTON. *RM Read More »

    • TSB #LI-58-40

      Date Announced:
      DEC 16, 2009
      NHTSA ID:
      #10033070

      XENTRY (MERCEDES): ENGINE WARNING LAMP IS CURRENTLY ON OR WAS ON AND A DELAY FAULT OF THE CAMSHAFT ADJUST TO CURRENT OR STORED IN THE ENGINE CONTROL UNIT. MODELS 171, 203, 209, 211, 219, 221, 216, 230, 164, 251, AND 403. Read More »

    • TSB #033008

      Date Announced:
      APR 24, 2008
      NHTSA ID:
      #10022893

      CHECK ENGINE LIGHT ON / FAULT CODES FC1200 / FC1208 STORED IN ME-SFI CONTROL UNIT. MERCEDES-BENZ MODEL C230, C280, C350, SLK280, SLK350, CLK350, CLK550, E350, E550, CLS550, S600, AND SL550. EQUIPPED WITH M272 ENGINE OR M273 ENGINE. Read More »

    FUEL SYSTEM, OTHER:STORAGE:FUEL GAUGE SYSTEM

    • TSB #LI-47-50

      Date Announced:
      MAR 09, 2011
      NHTSA ID:
      #10041024

      MERCEDES-BENZ: THE FUEL LEVEL INDICATOR IS WRONG. Read More »

    POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)

    • TSB #2007110001

      Date Announced:
      NOV 01, 2007
      NHTSA ID:
      #10023863

      MODELS ML350, ML500, ML63, ML320, ML550, GL450, GL320, GL550, R350, R500, R63, R320 - MODEL YEAR 2008 -- UPDATE ENGINE CONTROL MODULE SOFTWARE -- CHECK TRANSMISSION CONTROL MODULE SOFTWARE AND UPDATE IF NECESSARY. Read More »

    ELECTRICAL SYSTEM

    • TSB #LI-58-40

      Date Announced:
      DEC 16, 2009
      NHTSA ID:
      #10033070

      XENTRY (MERCEDES): ENGINE WARNING LAMP IS CURRENTLY ON OR WAS ON AND A DELAY FAULT OF THE CAMSHAFT ADJUST TO CURRENT OR STORED IN THE ENGINE CONTROL UNIT. MODELS 171, 203, 209, 211, 219, 221, 216, 230, 164, 251, AND 403. Read More »

    • TSB #SB-32-22-78

      Date Announced:
      MAY 06, 2009
      NHTSA ID:
      #10028686

      MERCEDES: AIR MATIC VISIT WORKSHOP DISPLAYED WITHIN INSTRUMENT CLUSTER. MODELS 164, 211, 219, 221 AND 251. INCLUDED 4MATIC, AMG (COMPRESSOR) AMG, BLUETEC AND WAGON. MODEL YEARS UNKNOWN. *PE UPDATED 9/18/09. Read More »

    ELECTRICAL SYSTEM:12V/24V/48V BATTERY

    • TSB #P-049567

      Date Announced:
      JUN 07, 2010
      NHTSA ID:
      #10034152

      MERCEDES: BATTERY SYMBOL AND SERVICE REQUIRED (IN WHITE). FAULT MESSAGE IS DISPLAYED IF THE CHARGE LEVEL IS TOO LOW OR THE PARK PAWL ADDITIONAL BATTERY IS DEFECTIVE. Read More »

    ELECTRICAL SYSTEM:WIRING

    • TSB #SB-32-22-78

      Date Announced:
      MAY 06, 2009
      NHTSA ID:
      #10028686

      MERCEDES: AIR MATIC VISIT WORKSHOP DISPLAYED WITHIN INSTRUMENT CLUSTER. MODELS 164, 211, 219, 221 AND 251. INCLUDED 4MATIC, AMG (COMPRESSOR) AMG, BLUETEC AND WAGON. MODEL YEARS UNKNOWN. *PE UPDATED 9/18/09. Read More »

    ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL

    • TSB #LI-47-50

      Date Announced:
      MAR 09, 2011
      NHTSA ID:
      #10041024

      MERCEDES-BENZ: THE FUEL LEVEL INDICATOR IS WRONG. Read More »

    • TSB #P-049567

      Date Announced:
      JUN 07, 2010
      NHTSA ID:
      #10034152

      MERCEDES: BATTERY SYMBOL AND SERVICE REQUIRED (IN WHITE). FAULT MESSAGE IS DISPLAYED IF THE CHARGE LEVEL IS TOO LOW OR THE PARK PAWL ADDITIONAL BATTERY IS DEFECTIVE. Read More »

    ELECTRICAL SYSTEM:SOFTWARE

    • TSB #SB-2009070002

      Date Announced:
      OCT 01, 2009
      NHTSA ID:
      #10032768

      MERCEDES: IT HAS BEEN DETERMINED THAT IN THE AFFECTED VEHICLES AN INCREASED NO LOAD CURRENT MAY OCCUR FROM REPEATED OPENING AND CLOSING OF THE LIFT GATE, USING THE KEY REMOTE, OR THE LIFT GATE LOCK SWITCH OVERSHOOTS THE SWITCHING RANGE. Read More »

    • TSB #SB-2008110009

      Date Announced:
      MAY 01, 2009
      NHTSA ID:
      #10028625

      MERCEDES: UPDATE REAR SAM SOFTWARE. THE OPENING AND CLOSING OF TAILGATE WITH KEY REMOTE, WHILE THE VEHICLE IS LOCKED, MAY CAUSE THE BATTERY TO DRAIN DUE TO INCORRECT REAR SAM REST CURRENT LOGIC. MODELS 164, 164.8, AND 251. Read More »

    VISIBILITY:WINDSHIELD WIPER/WASHER

    • TSB #SB-82-30-366E

      Date Announced:
      JUN 04, 2009
      NHTSA ID:
      #10033071

      MERCEDES BENZ: ADJUSTING WIPER ARMS. IF YOU RECEIVE REPORTS ON CERTAIN VEHICLES OF WIPERS CHATTERING/NOISY, PROCEED AS FOLLOWS: INSPECT WIPER BLADES/INSERTS FOR WEAR AND REPLACE; THOROUGHLY CLEAN WINDSHIELD; VERIFY USE OF CORRECT WASHER ... Read More »

    VISIBILITY:REAR WINDOW WIPER/WASHER

    • TSB #SB-82-30-366E

      Date Announced:
      JUN 04, 2009
      NHTSA ID:
      #10033071

      MERCEDES BENZ: ADJUSTING WIPER ARMS. IF YOU RECEIVE REPORTS ON CERTAIN VEHICLES OF WIPERS CHATTERING/NOISY, PROCEED AS FOLLOWS: INSPECT WIPER BLADES/INSERTS FOR WEAR AND REPLACE; THOROUGHLY CLEAN WINDSHIELD; VERIFY USE OF CORRECT WASHER ... Read More »

    STRUCTURE

    • TSB #TB-83-10-112B

      Date Announced:
      JAN 12, 2009
      NHTSA ID:
      #10028664

      MERCEDES: A NONFUNCTIONAL BLOWER MOTOR (BLOWER MOTOR RUNS CONTINUOUSLY) OR WATER DROPS IN FRONT PASSENGER FOOTWELL AFTER ENGINE WASH. Read More »

    STRUCTURE:FRAME AND MEMBERS

    • TSB #TB-83-10-112B

      Date Announced:
      JAN 12, 2009
      NHTSA ID:
      #10028664

      MERCEDES: A NONFUNCTIONAL BLOWER MOTOR (BLOWER MOTOR RUNS CONTINUOUSLY) OR WATER DROPS IN FRONT PASSENGER FOOTWELL AFTER ENGINE WASH. Read More »

    • TSB #TB 83 10 112

      Date Announced:
      MAR 07, 2008
      NHTSA ID:
      #10025647

      WATER ENTRY INTO VEHICLE INTERIOR FOR ALL MODEL 164 VEHICLES. *PE Read More »

    STRUCTURE:BODY

    • TSB #TB-83-10-112B

      Date Announced:
      JAN 12, 2009
      NHTSA ID:
      #10028664

      MERCEDES: A NONFUNCTIONAL BLOWER MOTOR (BLOWER MOTOR RUNS CONTINUOUSLY) OR WATER DROPS IN FRONT PASSENGER FOOTWELL AFTER ENGINE WASH. Read More »

    SEATS

    • TSB #TB-91-12-114A

      Date Announced:
      SEP 26, 2008
      NHTSA ID:
      #10027950

      MERCEDES: RIGHT SIDE SECOND ROW SEAT FOLD UP MECHANISM NOT WORKING CORRECTLY OR INOPERATIVE; RIGHT SIDE SECOND ROW SEAT RED RELEASE STRAP INOPERATIVE. MODEL YEARS UNKNOWN. *PE Read More »

    SEATS:MID/REAR ASSEMBLY

    • TSB #TB-91-12-114A

      Date Announced:
      SEP 26, 2008
      NHTSA ID:
      #10027950

      MERCEDES: RIGHT SIDE SECOND ROW SEAT FOLD UP MECHANISM NOT WORKING CORRECTLY OR INOPERATIVE; RIGHT SIDE SECOND ROW SEAT RED RELEASE STRAP INOPERATIVE. MODEL YEARS UNKNOWN. *PE Read More »

    EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

    • TSB #C1A140101

      Date Announced:
      FEB 07, 2014
      NHTSA ID:
      #10059536

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

    • TSB #TSB-2009020004

      Date Announced:
      MAR 01, 2009
      NHTSA ID:
      #10030665

      MERCEDES: IT HAS BEEN DETERMINED THAT THE TELE AID MAY NOT FUNCTION PROPERLY AS A RESULT OF A HARDWARE FAULT IN THE TELE AID CONTROL MODULE. Read More »

    EQUIPMENT ADAPTIVE/MOBILITY

    • TSB #LI-68-50

      Date Announced:
      DEC 10, 2010
      NHTSA ID:
      #10037985

      MERCEDES-BENZ: THE LOAD COMPARTMENT ROLLER BLIND HAS CATCH BOLTS LOOSE OR BROKEN FROM IMPROPER FORCE WHEN USING. *RM Read More »

    UNKNOWN OR OTHER

    • TSB #TSB-2009020004

      Date Announced:
      MAR 01, 2009
      NHTSA ID:
      #10030665

      MERCEDES: IT HAS BEEN DETERMINED THAT THE TELE AID MAY NOT FUNCTION PROPERLY AS A RESULT OF A HARDWARE FAULT IN THE TELE AID CONTROL MODULE. Read More »