Technical Service Bulletins (TSBs) for the 2001 C320 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: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 »

    STEERING:HYDRAULIC POWER ASSIST SYSTEM

    • TSB #601

      Date Announced:
      DEC 12, 2000
      NHTSA ID:
      #616243

      THIS IS TO ADVISE THAT MERCEDES-BENZ USA WILL CONDUCT A SERVICE CAMPAIGN OF CERTAIN 2000 AND 2001 MODEL YEAR VEHICLES EXHIBITING LEAKAGE IN THE POWER STEERING DAMPER HYDRAULIC LINE FITTINGS. Read More »

    SUSPENSION

    • TSB #LI33 30-P-056665

      Date Announced:
      AUG 05, 2019
      NHTSA ID:
      #10164810

      Throttle lift-off clunking noises at drive shafts of front axle Read More »

    • TSB #010104

      Date Announced:
      AUG 31, 2004
      NHTSA ID:
      #10009985

      THE HIGH PRESSURE HYDRAULIC DISTRIBUTION HOSE OF THE ACTIVE BODY CONTROL (ABC) MAY DETERIORATE OVER TIME DUE TO EXCESSIVE EXPOSURE TO HUMIDITY AND HIGH TEMPERATURES. Read More »

    SUSPENSION:FRONT

    • TSB #LI32.25-P-061137

      Date Announced:
      MAR 24, 2015
      NHTSA ID:
      #10135599

      Clunking noise from front axle suspension strut or rear axle shock absorber on short strokes of the damper Read More »

    SUSPENSION:FRONT:MACPHERSON STRUT

    • TSB #LI32.25-P-061137

      Date Announced:
      MAR 24, 2015
      NHTSA ID:
      #10135599

      Clunking noise from front axle suspension strut or rear axle shock absorber on short strokes of the damper Read More »

    SUSPENSION:REAR:SHOCK ABSORBER

    • TSB #LI32.25-P-061137

      Date Announced:
      MAR 24, 2015
      NHTSA ID:
      #10135599

      Clunking noise from front axle suspension strut or rear axle shock absorber on short strokes of the damper Read More »

    SERVICE BRAKES, HYDRAULIC

    • TSB #LI42.47-P-067502

      Date Announced:
      DEC 09, 2020
      NHTSA ID:
      #10186135

      If the customer brakes sharply from a speed of > 30mph, without ABS intervention, there is a single cracking noise from the area of the ESP hydraulic unit Read More »

    SERVICE BRAKES, ELECTRIC

    • TSB #LI-43-10

      Date Announced:
      AUG 03, 2010
      NHTSA ID:
      #10034988

      MERCEDES BENZ (DAIMLER): UNSATISFACTORY BRAKE SERVO ASSISTANCE AFTER A COLD START, PRIMARILY WHEN MANEUVERING. LOW VACUUM IN THE INTAKE MANIFOLD DUE TO WIDE OPEN THROTTLE VALVE. RETROFIT ELECTRIC BRAKE BOOSTER VACUUM PUMP (M56). Read More »

    SERVICE BRAKES, AIR:ANTILOCK

    • TSB #PB-42-30-103

      Date Announced:
      JAN 13, 2009
      NHTSA ID:
      #10028624

      MERCEDES VEHICLE: THE ANTI-LOCK BRAKE SYSTEM (ABS) RETURN FLOW PUMP RUNNING WITHOUT CONTROL WITH CORRESPONDING FAULT CODE C1401, CLEAN AND INSULATED THE CONNECTOR FOR THE RETURN FLOW PUMP RELAY. MODELS 202 AND 208. MODEL YEARS UNKNOWN. Read More »

    SERVICE BRAKES, AIR:ANTILOCK:CONTROL UNIT/MODULE

    • TSB #PB-42-30-103

      Date Announced:
      JAN 13, 2009
      NHTSA ID:
      #10028624

      MERCEDES VEHICLE: THE ANTI-LOCK BRAKE SYSTEM (ABS) RETURN FLOW PUMP RUNNING WITHOUT CONTROL WITH CORRESPONDING FAULT CODE C1401, CLEAN AND INSULATED THE CONNECTOR FOR THE RETURN FLOW PUMP RELAY. MODELS 202 AND 208. MODEL YEARS UNKNOWN. Read More »

    ENGINE AND ENGINE COOLING

    ENGINE AND ENGINE COOLING:ENGINE

    • TSB #2004070012

      Date Announced:
      AUG 01, 2004
      NHTSA ID:
      #10009820

      REPLACEMENT OF ABC PRESSURE SUPPLY VALVE UNIT HYDRAULIC LINE. *TT Read More »

    ENGINE AND ENGINE COOLING:ENGINE:GASOLINE

    • TSB #67002

      Date Announced:
      NOV 28, 2000
      NHTSA ID:
      #616275

      SOME VEHICLES MAY EXHIBIT A HARD TO START CONDITION (STARTER IS TURNING BUT ENGINE WON'T START). ENGINE STARTS BUT WILL NOT RUN AND / OR POOR ENGINE PERFORMANCE. *TT Read More »

    FUEL SYSTEM, GASOLINE

    • TSB #LI47.20-P-054958

      Date Announced:
      JUL 01, 2013
      NHTSA ID:
      #10167553

      Combination message: "Clean fuel filter" is displayed. The fault code 162500 (water level message - Bosch) or P226997 (water level message - Delphi) or 171600 (filter load - Bosch) is stored in the engine control unit. Read More »

    FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY:MOUNTING

    • TSB #PB-61-10-07

      Date Announced:
      SEP 17, 2008
      NHTSA ID:
      #10028147

      MERCEDES: REPLACING THE LONGITUDINAL MEMBER (LEFT AND RIGHT) BELOW THE MAIN FLOOR PANEL ON ALL MY 204 UP TO 12/31/07. (C300, C350, C300 4-MATIC, C63 AME). *PE Read More »

    FUEL SYSTEM, OTHER:STORAGE:TANK ASSEMBLY:MOUNTING

    • TSB #PB-61-10-07

      Date Announced:
      SEP 17, 2008
      NHTSA ID:
      #10028147

      MERCEDES: REPLACING THE LONGITUDINAL MEMBER (LEFT AND RIGHT) BELOW THE MAIN FLOOR PANEL ON ALL MY 204 UP TO 12/31/07. (C300, C350, C300 4-MATIC, C63 AME). *PE Read More »

    POWER TRAIN

    • TSB #LI27.50-P-071658

      Date Announced:
      SEP 30, 2020
      NHTSA ID:
      #10181124

      Harsh engagement when changing gear range from P to D or R Read More »

    • TSB #LI35.30-P-058566

      Date Announced:
      FEB 25, 2014
      NHTSA ID:
      #10166994

      Single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end). Heard once when changing from forward to reverse (and vice versa) Read More »

    ELECTRICAL SYSTEM

    • TSB #LI54.30-P-072145

      Date Announced:
      DEC 10, 2020
      NHTSA ID:
      #10186141

      NTG5.5: Incorrect time shown on instrument cluster, COMAND display, and analog clock Read More »

    • TSB #LI91.10-P-049799

      Date Announced:
      JUL 10, 2014
      NHTSA ID:
      #10166087

      The presence of a quiescent current can have several causes. These are not always recognized and lead to an increased number of OK components being removed. 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 »

    • TSB #LI83.00-P-052510

      Date Announced:
      FEB 22, 2013
      NHTSA ID:
      #10135917

      Malfunctions of various control units and/or on-board power supply problems caused by water in the control unit tray under the driver/front passenger seat (dislocated, pinched or leaking condensation ... Read More »

    • TSB #PB-91-60-53A

      Date Announced:
      FEB 27, 2009
      NHTSA ID:
      #10028586

      MERCEDES VEHICLE: THE SRS INDICATOR LAMP IS ILLUMINATED AND CODE B1058 AND B2DBO ARE STORED, REPLACE THE SRS CONTROL UNIT. MODELS 203 AND MODEL 209. MODEL YEARS UNKNOWN. *PE Read More »

    • TSB #805727

      Date Announced:
      SEP 08, 2004
      NHTSA ID:
      #10010446

      AFTER EIS REPLACEMENT CIRCUIT 15X DELAYED AFTER IGNITION START. *TT Read More »

    • TSB #076139

      Date Announced:
      MAR 29, 2004
      NHTSA ID:
      #10007612

      AIR MASS SENSORS. *MJ Read More »

    • TSB #076139

      Date Announced:
      MAR 29, 2004
      NHTSA ID:
      #10007612

      AIR MASS SENSORS. *MJ Read More »

    ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL

    • TSB #LI54.30-P-072145

      Date Announced:
      DEC 10, 2020
      NHTSA ID:
      #10186141

      NTG5.5: Incorrect time shown on instrument cluster, COMAND display, and analog clock Read More »

    ELECTRICAL SYSTEM:SOFTWARE

    EXTERIOR LIGHTING:HEADLIGHTS

    • TSB #PB-82-10-376F

      Date Announced:
      FEB 06, 2009
      NHTSA ID:
      #10028585

      MERCEDES VEHICLES: THE XENON OR BI-XENON HEADLAMP NOT FUNCTIONING. A FUNCTION DESCRIPTION CAN BE FOUND IN WIS DOCUMENT GF8S.10-P-20010 (203), GF82.10-P-0003Q (209); GF82.10-P-3002R (230). MODEL YEARS UKNOWN. Read More »

    EXTERIOR LIGHTING:FOG LIGHTS

    • TSB #8210196

      Date Announced:
      JUN 04, 2008
      NHTSA ID:
      #10015377

      REVISED REPAIR PROCEDURE AND ADDITIONAL APPLICABLE MODELS. MODEL 170, 202, 208 AND 210 MODELS. FRONT FOG LAMP(S) INOPERATIVE. MERCEDES-BENZ. *TT MODEL YEARS: 1994-2004. UPDATED 09/09/08. Read More »

    VISIBILITY:REARVIEW MIRRORS/DEVICES:EXTERIOR

    • TSB #887039

      Date Announced:
      MAR 16, 2005
      NHTSA ID:
      #10014583

      SEAL BETWEEN EXTERIOR REAR VIEW MIRROR HOUSING AND DOOR. *TT Read More »

    AIR BAGS

    • TSB #PB-91-60-53A

      Date Announced:
      FEB 27, 2009
      NHTSA ID:
      #10028586

      MERCEDES VEHICLE: THE SRS INDICATOR LAMP IS ILLUMINATED AND CODE B1058 AND B2DBO ARE STORED, REPLACE THE SRS CONTROL UNIT. MODELS 203 AND MODEL 209. MODEL YEARS UNKNOWN. *PE Read More »

    AIR BAGS:FRONTAL:SENSOR/CONTROL MODULE

    SEAT BELTS

    STRUCTURE

    • TSB #LI91.10-P-048497

      Date Announced:
      JUL 12, 2014
      NHTSA ID:
      #10166081

      Noise complaints when load on backrest frame changes. Affects the driver and front passenger seats. Also perform the remedial action if you are performing work on: - backrest frame - backrest cover or - guide rail of head restraint. Read More »

    VEHICLE SPEED CONTROL

    • TSB #50012

      Date Announced:
      MAY 22, 2001
      NHTSA ID:
      #621570

      ON SOME VEHICLES, UPON RELEASE OF THE BRAKE PEDAL AND / OR APPLICATION OF THE ACCELERATOR PEDAL, THERE IS A 1-2 SECOND DELAY UNTIL THE ACTUATOR MOVES TO THE NEW ACCELERATOR PEDAL INPUT POSITION. Read More »

    • TSB #50012

      Date Announced:
      MAY 22, 2001
      NHTSA ID:
      #621570

      ON SOME VEHICLES, UPON RELEASE OF THE BRAKE PEDAL AND / OR APPLICATION OF THE ACCELERATOR PEDAL, THERE IS A 1-2 SECOND DELAY UNTIL THE ACTUATOR MOVES TO THE NEW ACCELERATOR PEDAL INPUT POSITION. Read More »

    • TSB #50012

      Date Announced:
      MAY 22, 2001
      NHTSA ID:
      #621570

      ON SOME VEHICLES, UPON RELEASE OF THE BRAKE PEDAL AND / OR APPLICATION OF THE ACCELERATOR PEDAL, THERE IS A 1-2 SECOND DELAY UNTIL THE ACTUATOR MOVES TO THE NEW ACCELERATOR PEDAL INPUT POSITION. Read More »

    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 #LI91.10-P-059391

      Date Announced:
      JUL 12, 2014
      NHTSA ID:
      #10166095

      Noise from the front seats during load change. Read More »

    • TSB #LI91.25-P-059380

      Date Announced:
      JUL 10, 2014
      NHTSA ID:
      #10166099

      Pneumatic comfort systems with insufficient performance, entirely inoperative or leaky. Read More »

    • TSB #LI91.10-P-048498

      Date Announced:
      JUL 09, 2014
      NHTSA ID:
      #10166082

      Noises from area of seat adjuster or cushion frame. Read More »

    • TSB #LI91.10-P-048503

      Date Announced:
      JUL 09, 2014
      NHTSA ID:
      #10166085

      Grunting noise or ripping noise at seat-back lining Read More »

    ELECTRONIC STABILITY CONTROL

    • TSB #PB 42-45-98

      Date Announced:
      MAR 28, 2008
      NHTSA ID:
      #10025642

      MODEL 203 (C) SERIES FROM PRODUCTION 8/1/01 TO 2/1/03 AND MODEL 209 (CLK) SERIES UP TO PRODUCTION 2/1/03; ESP VISIT WORKSHOP WITH FAULT CODE C1185. *PE Read More »

    • TSB #PB 42-45-98

      Date Announced:
      MAR 28, 2008
      NHTSA ID:
      #10025642

      MODEL 203 (C) SERIES FROM PRODUCTION 8/1/01 TO 2/1/03 AND MODEL 209 (CLK) SERIES UP TO PRODUCTION 2/1/03; ESP VISIT WORKSHOP WITH FAULT CODE C1185. *PE Read More »

    • TSB #PB 42-45-98

      Date Announced:
      MAR 28, 2008
      NHTSA ID:
      #10025642

      MODEL 203 (C) SERIES FROM PRODUCTION 8/1/01 TO 2/1/03 AND MODEL 209 (CLK) SERIES UP TO PRODUCTION 2/1/03; ESP VISIT WORKSHOP WITH FAULT CODE C1185. *PE Read More »

    ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC)

    • TSB #LI42.47-P-067502

      Date Announced:
      DEC 09, 2020
      NHTSA ID:
      #10186135

      If the customer brakes sharply from a speed of > 30mph, without ABS intervention, there is a single cracking noise from the area of the ESP hydraulic unit 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:ELECTRICAL:ANTI-THEFT DEVICES

    EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.

    • TSB #PB8262165

      Date Announced:
      SEP 13, 2001
      NHTSA ID:
      #627173

      SUBJECT REGARDING POPPING OR THUMPING IN THE SPEAKERS. *JG Read More »

    EQUIPMENT ADAPTIVE/MOBILITY

    UNKNOWN OR OTHER

    • TSB #610

      Date Announced:
      DEC 14, 2000
      NHTSA ID:
      #616251

      MERCEDES-BENZ LAUNCHES TONIGHTS FIRST COURSE AND ADDS AN EXCITING APPETIZER TO THE MENUS OF RESTAURANTS THROUGHOUT THE COUNTRY - A TEST DRIVE IN AN ALL NEW 2001 C-CLASS. Read More »