Print this page

TSB List for the 2021 Mercedes-Benz C300

Technical Service Bulletins (TSBs) for the 2021 C300 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
  • SUSPENSION
  • SUSPENSION:FRONT:SHOCK ABSORBER
  • ENGINE AND ENGINE COOLING
  • ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION:SEALS/GASKETS
  • ENGINE AND ENGINE COOLING:COOLING SYSTEM
  • FUEL SYSTEM, GASOLINE
  • FUEL SYSTEM, GASOLINE:STORAGE
  • POWER TRAIN:AUTOMATIC TRANSMISSION
  • ELECTRICAL SYSTEM
  • ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
  • ELECTRICAL SYSTEM:SOFTWARE
  • ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY:THERMAL MANAGEMENT:SENSOR/THERMOSTAT
  • ELECTRICAL SYSTEM:PROPULSION SYSTEM:FUEL CELL
  • EXTERIOR LIGHTING:HEADLIGHTS
  • VISIBILITY
  • VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM
  • STRUCTURE
  • STRUCTURE:BODY:DOOR
  • STRUCTURE:BODY:TRUNK LID
  • STRUCTURE:BODY:HOOD
  • LATCHES/LOCKS/LINKAGES
  • VEHICLE SPEED CONTROL
  • SEATS
  • SEATS:FRONT ASSEMBLY:SEAT HEATER/COOLER
  • BACK OVER PREVENTION
  • INTERIOR LIGHTING
  • EQUIPMENT
  • EQUIPMENT:ELECTRICAL
  • EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.
  • EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM)
  • EQUIPMENT:ELECTRICAL:INFOTAINMENT
  • EQUIPMENT:ELECTRICAL:INFOTAINMENT:SOFTWARE
  • EQUIPMENT:MECHANICAL
  • EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
  • EQUIPMENT ADAPTIVE/MOBILITY
  • UNKNOWN OR OTHER
  • STEERING

    • TSB #LI46.10-P-077314

      Date Announced:
      JAN 24, 2024
      NHTSA ID:
      #10249495

      Noises in the steering column area when steering. Under analysis. Check which area of the steering column the noises occur in. Read More »

    • TSB #LI46.10-P-077313

      Date Announced:
      JAN 24, 2024
      NHTSA ID:
      #10249482

      The steering wheel generates grinding noises between the steering wheel and steering column switch module during steering maneuvers See example file in the attachments area: Lenkrad-Schleifger??A?usch_SteeringWheel-GrindingNoises. Read More »

    • TSB #LI46.15-P-071669

      Date Announced:
      MAR 01, 2023
      NHTSA ID:
      #10233783

      Complaint Loads induced at the steering wheel through pushing and pulling actions may cause creaking and cracking noises in the mechanical steering column. Read More »

    • TSB #LI46.15-P-063353

      Date Announced:
      DEC 01, 2022
      NHTSA ID:
      #10228807

      Complaint Height adjustment of electric steering column adjustment jammed in the top/bottom adjustment position (e.g. with Easy Entry function). Cause Height adjustment moves to the top/bottom limit stop and jams. Read More »

    • TSB #LI46.15-P-063353

      Date Announced:
      JUL 14, 2022
      NHTSA ID:
      #10217157

      Complaint Height adjustment of electric steering column adjustment jammed in the top/bottom adjustment position (e.g. with Easy Entry function). Cause Height adjustment moves to the top/bottom limit stop and jams. 1. Read More »

    • TSB #LI46.11-P-071594

      Date Announced:
      MAR 19, 2021
      NHTSA ID:
      #10191272

      Steering wheel heater and/or Distronic cannot be activated. Remedy: Update software for steering wheel electronics control unit ("N 135 - Steering wheel electronics (LRE)"). Read More »

    SUSPENSION

    • TSB #LI32.25-P-076956

      Date Announced:
      OCT 12, 2023
      NHTSA ID:
      #10244735

      Wheezing noises from the front shock absorbers when passing over surface undulations and rough road. The noises may become more conspicuous with warm damper oil. The flow noises of the damper oil are currently being analyzed. Read More »

    • TSB #LI32.25-P-066246

      Date Announced:
      JUL 11, 2022
      NHTSA ID:
      #10217154

      Complaint Thumping noise on rear axle shock absorber on rough road. Cause Until now the rear axle shock absorber support bushing was only available together with the rear axle shock absorber as a replacement part. Read More »

    SUSPENSION:FRONT:SHOCK ABSORBER

    • TSB #LI32.25-P-076956

      Date Announced:
      OCT 12, 2023
      NHTSA ID:
      #10244735

      Wheezing noises from the front shock absorbers when passing over surface undulations and rough road. The noises may become more conspicuous with warm damper oil. The flow noises of the damper oil are currently being analyzed. Read More »

    ENGINE AND ENGINE COOLING

    • TSB #LI07.70-P-070763

      Date Announced:
      NOV 17, 2023
      NHTSA ID:
      #10246281

      Fault code P06DA00 is found current or stored in engine control unit. Check engine light may be activated. Read More »

    • TSB #NCU-2023070019

      Date Announced:
      AUG 25, 2023
      NHTSA ID:
      #10241530

      Mercedes-Benz AG (a??MBAGa??), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year 2021 C-Class (205 platform), CLA (118 platform), G-Class (463 platform), GLC (253 platform), GLA (247 platform) and ... Read More »

    • TSB #SC-2021070006

      Date Announced:
      JUL 07, 2022
      NHTSA ID:
      #10217148

      Mercedes-Benz AG (a??MBAGa??), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year 2021 CLA (118 platform), GLE/GLS (167 platform), C-Class (205 platform), E-Class (213 platform), GLA (247 platform), GLC ... Read More »

    • TSB #LI09.00-P-074093

      Date Announced:
      DEC 08, 2021
      NHTSA ID:
      #10206077

      "MY15+ M278 and M157 Equipped Vehicles with Fault Code ""P023400 a?? Boost Pressure is Too High"" " Read More »

    • TSB #LI2700P073106

      Date Announced:
      MAY 25, 2021
      NHTSA ID:
      #10202530

      Remote start causing CEL and U012600. Read More »

    ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION:SEALS/GASKETS

    ENGINE AND ENGINE COOLING:COOLING SYSTEM

    • TSB #LI20.10-P-072886

      Date Announced:
      APR 20, 2021
      NHTSA ID:
      #10195221

      with engine M17x the ME Control Unit: "The Coolant Temperature is Below the Specified Temperature" Read More »

    FUEL SYSTEM, GASOLINE

    • TSB #LI8860P073470

      Date Announced:
      AUG 11, 2021
      NHTSA ID:
      #10205814

      Fuel filler flap opens slowly/switch flashes/tank is bleeding instrument cluster warning Read More »

    FUEL SYSTEM, GASOLINE:STORAGE

    • TSB #LI8860P073470

      Date Announced:
      AUG 11, 2021
      NHTSA ID:
      #10205814

      Fuel filler flap opens slowly/switch flashes/tank is bleeding instrument cluster warning Read More »

    POWER TRAIN:AUTOMATIC TRANSMISSION

    • TSB #LI2700P0647671

      Date Announced:
      AUG 26, 2016
      NHTSA ID:
      #10205156

      Intial startup not possible after replacement of transmisson 725.0 or of electrohydraulic controller unit. Read More »

    ELECTRICAL SYSTEM

    • TSB #OTA - 24240302

      Date Announced:
      MAR 22, 2024
      NHTSA ID:
      #10252732

      This is to notify you of the Service Campaign OTA update for the MBUX control unit software in 14,559 Model Year (MY) 21-23 C-Class, S-Class, SL, EQS (206, 223, 232, 297 platform) vehicles. Read More »

    • TSB #OTA-24240203

      Date Announced:
      FEB 29, 2024
      NHTSA ID:
      #10251192

      Mercedes-Benz AG (??A???A???A?MBAG??A???A???A?), the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY 21-24 C-Class, EQE, EQS, GLC, GLE, GLS, S-Class, SL (206, 294, 295, 296, 297, 254, 167, 223, 232 platform) ... Read More »

    • TSB #OTA-24240201

      Date Announced:
      FEB 09, 2024
      NHTSA ID:
      #10251176

      Mercedes-Benz AG (??A???A???A?MBAG??A???A???A?), the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY20-23 A-Class, C-Class, CLA, CLS, E-Class, GLA, GLB, GLC, GLE, GLS, AMG GT, S-Class (177, 205, 118, 257, 213, ... Read More »

    • TSB #NCU-OTAcommNoMMC

      Date Announced:
      JAN 18, 2024
      NHTSA ID:
      #10249726

      Mercedes-Benz AG (??A?A?MBAG??A?A?), the manufacturer of Mercedes-Benz, has determined that in certain MY 2017-2021 C-Class, CLA, CLS, E-Class, GLC, GLE, GLS, AMG GT, S-Class, SL, and SLC (205, 117, 257, 213/238, 253, 166/292, ... Read More »

    • TSB #CL-CommMod

      Date Announced:
      JAN 05, 2024
      NHTSA ID:
      #10249740

      Dear Mercedes-Benz Owner: On behalf of Mercedes-Benz USA, LLC (MBUSA), thank you for being a part of the Mercedes-Benz family. We hope that you??A?A?re enjoying your vehicle. Read More »

    • TSB #OTA-Comm Mod SW

      Date Announced:
      DEC 07, 2023
      NHTSA ID:
      #10248195

      Mercedes-Benz AG (??A?A?MBAG??A?A?), the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY19-23 A-Class, C-Class, CLA, CLS, E-Class, EQB, G-Class, GLA, GLB, GLC, GLE, GLS, AMG GT, S-Class (177, 205, 118, 257, 213, ... Read More »

    • TSB #OTA-InductNonMMC

      Date Announced:
      DEC 01, 2023
      NHTSA ID:
      #10248210

      Mercedes-Benz AG ("MBAG"), the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY21-24 C-Class, EQE, EQS, S-Class (206, 294/295, 296/297 and 223 platform) vehicles, the inductive charging system software does not ... Read More »

    • TSB #OTA-InductiveSW

      Date Announced:
      DEC 01, 2023
      NHTSA ID:
      #10248206

      Mercedes-Benz AG (??A?A?MBAG??A?A?), the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY21-24 C-Class, EQE, EQS, S-Class (206, 294/295, 296/297 and 223 platform) vehicles, the inductive charging system software ... Read More »

    • TSB #LI82.95-P-076991

      Date Announced:
      OCT 23, 2023
      NHTSA ID:
      #10244776

      Mercedes me connect services inoperative (me-Call, Remote Status, etc.). Mercedes me services - activation not possible. Notes: - In the quick test, no fault code and no event code is stored in the RAMSES control unit (N112/2). Read More »

    • TSB #NCU -MBUX SW OTA

      Date Announced:
      OCT 20, 2023
      NHTSA ID:
      #10244748

      Mercedes-Benz AG (??A?A?MBAG??A?A?), the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY21-23 C-Class, EQS, S-Class, SL, EQE, GLC (206, 296, 297, 223, 232, 294, 295, 254 platform) vehicles, the head unit software ... Read More »

    • TSB #LI82.85-P-076800

      Date Announced:
      OCT 10, 2023
      NHTSA ID:
      #10244837

      The "SOS nonfunctional" message appears sporadically in the instrument cluster of the vehicle. The fault code B129C00 is stored in the control unit log. Read More »

    • TSB #NCU-HU SW Update

      Date Announced:
      AUG 28, 2023
      NHTSA ID:
      #10241527

      Mercedes-Benz AG (a??MBAGa??), the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY 2018-2023 C-Class, EQE, EQE SUV, EQS, EQS SUV, GLC, GLE and S-Class (206, 295, 294, 297, 296, 254, 167 and 223 platform) ... Read More »

    • TSB #NCU - HU Update

      Date Announced:
      JUL 19, 2023
      NHTSA ID:
      #10240250

      Mercedes-Benz AG (a??MBAGa??), the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY 2021-2024 C-Class, EQE, EQE SUV, EQS, EQS SUV, GLC, GLE and S-Class (206, 295, 294, 297, 296, 254, 167 and 223 platform) ... Read More »

    • TSB #NCU-2023060003

      Date Announced:
      JUN 15, 2023
      NHTSA ID:
      #10238437

      Mercedes-Benz AG (a??MBAGa??), the manufacturer of Mercedes-Benz, has determined that on certain Model Year (a??MYa??) 2016 a?? 2021 C-Class (205 platform), E-Class (213 platform) and GLC (253 platform) vehicles, the air conditioning ... Read More »

    • TSB #LI72.20-P-075746

      Date Announced:
      JAN 05, 2023
      NHTSA ID:
      #10231032

      Complaint Tailgate opens unintentionally. Cause Accidental or unnoticed activation of the button to open the tailgate on the vehicle key. E.g. when stored in trouser pocket, handbag etc. Read More »

    • TSB #LI82.85-P-074970

      Date Announced:
      JUL 07, 2022
      NHTSA ID:
      #10217162

      Complaint Customer may have one or more of the following complaints: a?? Vehicle location is shown incorrectly in the Navigation Display a?? Navigation destination search is not possible a?? Street names are not shown in Navigation ... Read More »

    • TSB #NCU-2022060008

      Date Announced:
      JUN 30, 2022
      NHTSA ID:
      #10215016

      Mercedes-Benz AG (a??MBAGa??), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (a??MYa??) 2020-2022 A-Class, C-Class, CLAClass, GLA-Class, GLB-Class, GLC-Class, GLE-Class, and GLS-Class (118, 167, ... Read More »

    • TSB #LI82.85-P-074970

      Date Announced:
      JUN 15, 2022
      NHTSA ID:
      #10215212

      Complaint Customer may have one or more of the following complaints: a?? Vehicle location is shown incorrectly in the Navigation Display a?? Navigation destination search is not possible a?? Street names are not shown in Navigation ... Read More »

    • TSB #LI54.10-P-071499

      Date Announced:
      MAR 31, 2022
      NHTSA ID:
      #10209877

      Complaint The result from the XENTRY battery test does not match the current state of the battery. Cause The XENTRY battery tester uses the stored on-board electrical system data in the SAM module to access the health of the 12 volt ... Read More »

    • TSB #LI68.05-P-060306

      Date Announced:
      JAN 27, 2022
      NHTSA ID:
      #10207198

      Complaint The garage door hand transmitter cannot be initialized with the integrated garage door opener in the inside rearview mirror. Cause 1. Read More »

    • TSB #LI68.05-P-060307

      Date Announced:
      JAN 09, 2022
      NHTSA ID:
      #10207199

      Complaint The range of the integrated garage door opener (GTO) is too short. Cause 1. Vehicles equipped with infrared windows and/or a heated windshield may suffer from complaints involving low transmission power. 2. Read More »

    • TSB #LI91.30-P-073902

      Date Announced:
      JAN 04, 2022
      NHTSA ID:
      #10207205

      Complaint Seat heating on driver's seat and front passenger seat nonfunctional. The LEDs on the switches for the seat heating illuminate, but the seat heating mats do not get warm. Cause Faulty SCN coding of rear SAM. Read More »

    • TSB # LI54.10-P-07407

      Date Announced:
      DEC 02, 2021
      NHTSA ID:
      #10206064

      Eco start/stop nonfunctional due to 12V battery Read More »

    • TSB #LI80.57-P-072708

      Date Announced:
      MAR 24, 2021
      NHTSA ID:
      #10191271

      Engine switches off again when re-attempting Remote Start via Mercedes me App. This only occurs if the first Remote Start via the Mercedes me App was canceled and then started again. Read More »

    • TSB #LI42.47-P-069817

      Date Announced:
      MAR 19, 2021
      NHTSA ID:
      #10191288

      After ignition ON, the following message is shown on the instrument cluster: - "Unavailable! - ESP - Service Required" Read More »

    • TSB #LI27.00-P-072627

      Date Announced:
      MAR 16, 2021
      NHTSA ID:
      #10191278

      Fault in 12 V interlock circuit Read More »

    • TSB #LI27.35-P-072629

      Date Announced:
      MAR 12, 2021
      NHTSA ID:
      #10191279

      When ordering the electrohydraulic controller unit (EHS) using the part number stated on the EHS, the wrong parts may be ordered. Read More »

    • 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: INSTRUMENT CLUSTER/PANEL

    • TSB #LI82.85-P-076800

      Date Announced:
      OCT 10, 2023
      NHTSA ID:
      #10244837

      The "SOS nonfunctional" message appears sporadically in the instrument cluster of the vehicle. The fault code B129C00 is stored in the control unit log. Read More »

    • 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 #LI8370P0644803

      Date Announced:
      AUG 11, 2016
      NHTSA ID:
      #10205252

      High voltage battery warning message in instrument cluster. Read More »

    ELECTRICAL SYSTEM:SOFTWARE

    • TSB #OTA-24240201

      Date Announced:
      FEB 09, 2024
      NHTSA ID:
      #10251176

      Mercedes-Benz AG (??A???A???A?MBAG??A???A???A?), the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY20-23 A-Class, C-Class, CLA, CLS, E-Class, GLA, GLB, GLC, GLE, GLS, AMG GT, S-Class (177, 205, 118, 257, 213, ... Read More »

    • TSB #NCU -MBUX SW OTA

      Date Announced:
      OCT 20, 2023
      NHTSA ID:
      #10244748

      Mercedes-Benz AG (??A?A?MBAG??A?A?), the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY21-23 C-Class, EQS, S-Class, SL, EQE, GLC (206, 296, 297, 223, 232, 294, 295, 254 platform) vehicles, the head unit software ... Read More »

    • TSB #NCU-HU SW Update

      Date Announced:
      AUG 28, 2023
      NHTSA ID:
      #10241527

      Mercedes-Benz AG (a??MBAGa??), the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY 2018-2023 C-Class, EQE, EQE SUV, EQS, EQS SUV, GLC, GLE and S-Class (206, 295, 294, 297, 296, 254, 167 and 223 platform) ... Read More »

    • TSB #NCU-2023060003

      Date Announced:
      JUN 15, 2023
      NHTSA ID:
      #10238437

      Mercedes-Benz AG (a??MBAGa??), the manufacturer of Mercedes-Benz, has determined that on certain Model Year (a??MYa??) 2016 a?? 2021 C-Class (205 platform), E-Class (213 platform) and GLC (253 platform) vehicles, the air conditioning ... Read More »

    • TSB #LI46.15-P-063353

      Date Announced:
      JUL 14, 2022
      NHTSA ID:
      #10217157

      Complaint Height adjustment of electric steering column adjustment jammed in the top/bottom adjustment position (e.g. with Easy Entry function). Cause Height adjustment moves to the top/bottom limit stop and jams. 1. Read More »

    • TSB #LI2700P073106

      Date Announced:
      MAY 25, 2021
      NHTSA ID:
      #10202530

      Remote start causing CEL and U012600. Read More »

    • TSB #LI7240P056909

      Date Announced:
      JUL 30, 2013
      NHTSA ID:
      #10205215

      Window lifter and outside mirror on passenger side malfunction after replacement of door control unit. Read More »

    ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY:THERMAL MANAGEMENT:SENSOR/THERMOSTAT

    • TSB #LI20.10-P-072886

      Date Announced:
      APR 20, 2021
      NHTSA ID:
      #10195221

      with engine M17x the ME Control Unit: "The Coolant Temperature is Below the Specified Temperature" Read More »

    ELECTRICAL SYSTEM:PROPULSION SYSTEM:FUEL CELL

    • TSB #LI72.20-P-075746

      Date Announced:
      MAR 11, 2024
      NHTSA ID:
      #10252777

      Tailgate opens unintentionally. Accidental or unnoticed activation of the button to open the tailgate on the vehicle key. E.g. when stored in trouser pocket, handbag etc. Read More »

    EXTERIOR LIGHTING:HEADLIGHTS

    VISIBILITY

    • TSB #NCU-2023060003

      Date Announced:
      JUN 15, 2023
      NHTSA ID:
      #10238437

      Mercedes-Benz AG (a??MBAGa??), the manufacturer of Mercedes-Benz, has determined that on certain Model Year (a??MYa??) 2016 a?? 2021 C-Class (205 platform), E-Class (213 platform) and GLC (253 platform) vehicles, the air conditioning ... Read More »

    • TSB #LI83.30-P-071494

      Date Announced:
      DEC 30, 2020
      NHTSA ID:
      #10186148

      Air Conditioning Intermittently Does Not Cool Read More »

    • TSB #LI7240P056909

      Date Announced:
      JUL 30, 2013
      NHTSA ID:
      #10205215

      Window lifter and outside mirror on passenger side malfunction after replacement of door control unit. Read More »

    VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM

    STRUCTURE

    • TSB #LI72.20-P-075746

      Date Announced:
      MAR 11, 2024
      NHTSA ID:
      #10252777

      Tailgate opens unintentionally. Accidental or unnoticed activation of the button to open the tailgate on the vehicle key. E.g. when stored in trouser pocket, handbag etc. Read More »

    • TSB #LI72.00-P-075743

      Date Announced:
      JAN 04, 2023
      NHTSA ID:
      #10231031

      Staining on door trim strips and top and bottom trim elements on rear side windows. Cause Damage to protective coating of door beltline trim strips, door upper trim strips and side window trim element. Remedy 1. Read More »

    STRUCTURE:BODY:DOOR

    STRUCTURE:BODY:TRUNK LID

    • TSB #LI72.20-P-075746

      Date Announced:
      MAR 11, 2024
      NHTSA ID:
      #10252777

      Tailgate opens unintentionally. Accidental or unnoticed activation of the button to open the tailgate on the vehicle key. E.g. when stored in trouser pocket, handbag etc. Read More »

    STRUCTURE:BODY:HOOD

    • TSB #LI72.20-P-075746

      Date Announced:
      MAR 11, 2024
      NHTSA ID:
      #10252777

      Tailgate opens unintentionally. Accidental or unnoticed activation of the button to open the tailgate on the vehicle key. E.g. when stored in trouser pocket, handbag etc. Read More »

    LATCHES/LOCKS/LINKAGES

    • TSB #LI72.20-P-075746

      Date Announced:
      JAN 05, 2023
      NHTSA ID:
      #10231032

      Complaint Tailgate opens unintentionally. Cause Accidental or unnoticed activation of the button to open the tailgate on the vehicle key. E.g. when stored in trouser pocket, handbag etc. Read More »

    VEHICLE SPEED CONTROL

    • TSB #LI7240P056909

      Date Announced:
      JUL 30, 2013
      NHTSA ID:
      #10205215

      Window lifter and outside mirror on passenger side malfunction after replacement of door control unit. 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 #LI91.30-P-073902

      Date Announced:
      JAN 04, 2022
      NHTSA ID:
      #10207205

      Complaint Seat heating on driver's seat and front passenger seat nonfunctional. The LEDs on the switches for the seat heating illuminate, but the seat heating mats do not get warm. Cause Faulty SCN coding of rear SAM. Read More »

    SEATS:FRONT ASSEMBLY:SEAT HEATER/COOLER

    • TSB #LI91.30-P-073902

      Date Announced:
      JAN 04, 2022
      NHTSA ID:
      #10207205

      Complaint Seat heating on driver's seat and front passenger seat nonfunctional. The LEDs on the switches for the seat heating illuminate, but the seat heating mats do not get warm. Cause Faulty SCN coding of rear SAM. Read More »

    BACK OVER PREVENTION

    • TSB #LI82.27-P-072402

      Date Announced:
      FEB 22, 2021
      NHTSA ID:
      #10189406

      If the exhaust flap is operated or the drive program is changed within 10 seconds of the engine being started, an audible humming noise may emit from the speakers. New sound amp (N40/3) software is currently in development. Read More »

    INTERIOR LIGHTING

    • TSB #LI82.20-P-073063

      Date Announced:
      FEB 16, 2022
      NHTSA ID:
      #10208744

      Complaint The touchpad dimming function does not work and the search lighting is either at maximum brightness or fully off (dependent upon dimming signal). Read More »

    • TSB #LI8220P073063

      Date Announced:
      JUN 16, 2021
      NHTSA ID:
      #10202531

      Touch pad: Search lighting does not dim or does not turn on. Read More »

    EQUIPMENT

    • TSB #LI46.15-P-063353

      Date Announced:
      JUL 14, 2022
      NHTSA ID:
      #10217157

      Complaint Height adjustment of electric steering column adjustment jammed in the top/bottom adjustment position (e.g. with Easy Entry function). Cause Height adjustment moves to the top/bottom limit stop and jams. 1. Read More »

    • TSB #LI32.25-P-066246

      Date Announced:
      JUL 11, 2022
      NHTSA ID:
      #10217154

      Complaint Thumping noise on rear axle shock absorber on rough road. Cause Until now the rear axle shock absorber support bushing was only available together with the rear axle shock absorber as a replacement part. Read More »

    • TSB #SC-2021070006

      Date Announced:
      JUL 07, 2022
      NHTSA ID:
      #10217148

      Mercedes-Benz AG (a??MBAGa??), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year 2021 CLA (118 platform), GLE/GLS (167 platform), C-Class (205 platform), E-Class (213 platform), GLA (247 platform), GLC ... Read More »

    • TSB #LI82.85-P-074970

      Date Announced:
      JUN 15, 2022
      NHTSA ID:
      #10215212

      Complaint Customer may have one or more of the following complaints: a?? Vehicle location is shown incorrectly in the Navigation Display a?? Navigation destination search is not possible a?? Street names are not shown in Navigation ... Read More »

    • TSB #NCU-2021060018

      Date Announced:
      JUL 23, 2021
      NHTSA ID:
      #10199469

      Launch NCU - 2021060018 MY21 205 Check Left Front Door for Damage Read More »

    • TSB #LI2700P073106

      Date Announced:
      MAY 25, 2021
      NHTSA ID:
      #10202530

      Remote start causing CEL and U012600. Read More »

    • TSB #LI54.70-P-068094

      Date Announced:
      MAR 29, 2021
      NHTSA ID:
      #10191289

      Message (yellow) in IC "Active Brake Assist currently restricted, see operator's manual, Remedy: Deactivate transport mode and drive vehicle for approx 6mi. Read More »

    • TSB #LI9110P0633475

      Date Announced:
      NOV 21, 2016
      NHTSA ID:
      #10205266

      Map pocket on front seat backrest trim does not close. Read More »

    EQUIPMENT:ELECTRICAL

    • TSB #LI8285P070107

      Date Announced:
      AUG 27, 2021
      NHTSA ID:
      #10205807

      The Weather App will not populate local weather data based on current vehicle position. Read More »

    • TSB #LI8200P073331

      Date Announced:
      AUG 10, 2021
      NHTSA ID:
      #10205801

      Intermittently after bus sleep the lower control panel LCP and upper control panel UCP may be panel UCP may be inoperable. Read More »

    • TSB #LI8262P0634113

      Date Announced:
      NOV 30, 2016
      NHTSA ID:
      #10205232

      Disturbed Antenna Signal. Read More »

    • TSB #LI8285P0602587

      Date Announced:
      AUG 29, 2016
      NHTSA ID:
      #10205240

      Reset the customer-specific data and perform a software update of the AUDIO20 control unit. Read More »

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

    EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM)

    • TSB #LI82.85-P-074970

      Date Announced:
      JUL 07, 2022
      NHTSA ID:
      #10217162

      Complaint Customer may have one or more of the following complaints: a?? Vehicle location is shown incorrectly in the Navigation Display a?? Navigation destination search is not possible a?? Street names are not shown in Navigation ... Read More »

    • TSB #LI8285P070107

      Date Announced:
      AUG 27, 2021
      NHTSA ID:
      #10205807

      The Weather App will not populate local weather data based on current vehicle position. Read More »

    • TSB #LI8285P0633424

      Date Announced:
      NOV 29, 2016
      NHTSA ID:
      #10205242

      Navigation system permanently displays "Activating". Read More »

    • TSB #LI8285P0633423

      Date Announced:
      AUG 25, 2016
      NHTSA ID:
      #10205241

      Navigation system permanently displays "Activating". Read More »

    • TSB #LI8285P0647651

      Date Announced:
      AUG 25, 2016
      NHTSA ID:
      #10205247

      Traffic information service and posibly the voice control, nonfunctional after navigation software update. Read More »

    EQUIPMENT:ELECTRICAL:INFOTAINMENT

    • TSB #LI82.95-P-076991

      Date Announced:
      OCT 23, 2023
      NHTSA ID:
      #10244776

      Mercedes me connect services inoperative (me-Call, Remote Status, etc.). Mercedes me services - activation not possible. Notes: - In the quick test, no fault code and no event code is stored in the RAMSES control unit (N112/2). Read More »

    EQUIPMENT:ELECTRICAL:INFOTAINMENT:SOFTWARE

    • TSB #LI82.95-P-076991

      Date Announced:
      OCT 23, 2023
      NHTSA ID:
      #10244776

      Mercedes me connect services inoperative (me-Call, Remote Status, etc.). Mercedes me services - activation not possible. Notes: - In the quick test, no fault code and no event code is stored in the RAMSES control unit (N112/2). Read More »

    EQUIPMENT:MECHANICAL

    • TSB #LI7240P056909

      Date Announced:
      JUL 30, 2013
      NHTSA ID:
      #10205215

      Window lifter and outside mirror on passenger side malfunction after replacement of door control unit. Read More »

    EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

    • TSB #P-SC-2022030014

      Date Announced:
      MAY 20, 2022
      NHTSA ID:
      #10213058

      Mercedes-Benz AG (a??MBAGa??), the manufacturer of Mercedes-Benz, has determined that on certain Model Year (a??MYa??) 2021 CLA-Class, GLA-Class, GLE-Class, GLS-Class, A-Class, C-Class, E-Class, GLB-Class, CLS-Class, and AMG GT ... Read More »

    EQUIPMENT ADAPTIVE/MOBILITY

    • TSB #SC-2021070006

      Date Announced:
      JUL 07, 2022
      NHTSA ID:
      #10217148

      Mercedes-Benz AG (a??MBAGa??), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year 2021 CLA (118 platform), GLE/GLS (167 platform), C-Class (205 platform), E-Class (213 platform), GLA (247 platform), GLC ... Read More »

    • TSB #NCU-2021060018

      Date Announced:
      JUL 23, 2021
      NHTSA ID:
      #10199469

      Launch NCU - 2021060018 MY21 205 Check Left Front Door for Damage Read More »

    • TSB #LI20.10-P-072886

      Date Announced:
      APR 20, 2021
      NHTSA ID:
      #10195221

      with engine M17x the ME Control Unit: "The Coolant Temperature is Below the Specified Temperature" Read More »

    UNKNOWN OR OTHER

    • TSB #LI2700P0647671

      Date Announced:
      AUG 26, 2016
      NHTSA ID:
      #10205156

      Intial startup not possible after replacement of transmisson 725.0 or of electrohydraulic controller unit. Read More »

    • TSB #LI1830P0597123

      Date Announced:
      AUG 05, 2016
      NHTSA ID:
      #10205154

      Gasket may settle causing a slight oil leak. Read More »

    Browse Other C300 Years

    Become a Fan & Spread the Word