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TSB List for the 2021 Mercedes-Benz CLA250

Technical Service Bulletins (TSBs) for the 2021 CLA250 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
  • SERVICE BRAKES, HYDRAULIC
  • SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:PADS
  • ENGINE (PWS)
  • ENGINE AND ENGINE COOLING
  • ENGINE AND ENGINE COOLING:ENGINE:HARD PARTS INTERNAL/MECHANICAL
  • ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION:SEALS/GASKETS
  • ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
  • FUEL SYSTEM, GASOLINE
  • FUEL SYSTEM, GASOLINE:STORAGE
  • POWER TRAIN
  • POWER TRAIN:AUTOMATIC TRANSMISSION
  • ELECTRICAL SYSTEM
  • ELECTRICAL SYSTEM:12V/24V/48V BATTERY
  • ELECTRICAL SYSTEM:IGNITION:ANTI-THEFT:CONTROL MODULE
  • ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
  • ELECTRICAL SYSTEM:SOFTWARE
  • ELECTRICAL SYSTEM:ADAS:PARKING ASSIST:SOFTWARE
  • ELECTRICAL SYSTEM:ADAS:PARKING ASSIST:WARNING
  • ELECTRICAL SYSTEM:PROPULSION SYSTEM:DC/DC CONVERTER
  • ELECTRICAL SYSTEM:PROPULSION SYSTEM:FUEL CELL
  • VISIBILITY
  • VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM
  • STRUCTURE
  • STRUCTURE:BODY:TRUNK LID
  • STRUCTURE:BODY:HOOD
  • LATCHES/LOCKS/LINKAGES
  • TIRES:PRESSURE MONITORING AND REGULATING SYSTEMS
  • WHEELS
  • WHEELS:SPACE SAVER WHEEL
  • SEATS
  • LANE DEPARTURE
  • BACK OVER PREVENTION
  • COMMUNICATION
  • COMMUNICATION:MANUFACTURER TELEMATICS
  • EQUIPMENT
  • EQUIPMENT:ELECTRICAL
  • EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.
  • EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM)
  • EQUIPMENT:ELECTRICAL:INFOTAINMENT:SOFTWARE
  • EQUIPMENT:ELECTRICAL:INFOTAINMENT:BLUETOOTH/WIFI
  • 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-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 #LI46.35-P-074816

      Date Announced:
      NOV 01, 2022
      NHTSA ID:
      #10227143

      Complaint Squeaking noise from area of input shaft of electric steering Cause Inadequate lubrication. Remedy Grease/lubricate sealing area of input shaft. Read More »

    • TSB #LI46.35-P-075129

      Date Announced:
      SEP 02, 2022
      NHTSA ID:
      #10222464

      Complaint Vibrations in steering at speeds lower than 30 mph. Possible when turning and also partly noticeable after changing to winter or all-season tires. Read More »

    • TSB #LI46.35-P-075129

      Date Announced:
      AUG 02, 2022
      NHTSA ID:
      #10219265

      Complaint Vibrations in steering at speeds lower than 30 mph. Possible when turning and also partly noticeable after changing to winter or all-season tires. Read More »

    • TSB #LI46.15-P-070510

      Date Announced:
      JUL 11, 2022
      NHTSA ID:
      #10217158

      Complaint Noises from the area of the steering column. - Creaking - Squeaking - Chattering - Humming - Grinding Cause At present, there are no known noise problems with the steering column. 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 »

    • TSB #LI32.20-P-072611

      Date Announced:
      MAR 10, 2021
      NHTSA ID:
      #10191276

      Noise from the front axle when steering while stationary or when steering at low speeds Read More »

    SUSPENSION

    • TSB #LI35.31-P-072105

      Date Announced:
      MAR 12, 2021
      NHTSA ID:
      #10191281

      Humming noises or vibrations from the area of the rear axle when maneuvering or moving off at traffic lights/intersections. Read More »

    SERVICE BRAKES, HYDRAULIC

    • TSB #LI42.15-P-074455

      Date Announced:
      FEB 25, 2022
      NHTSA ID:
      #10208737

      Complaint Brake squeal from front axle when braking to a standstill. Cause Frictional vibrations between brake lining and brake disk. There is no impact to braking capabilities. Read More »

    SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:PADS

    • TSB #NCU-2020080023

      Date Announced:
      AUG 28, 2020
      NHTSA ID:
      #10179976

      Mercedes-Benz AG ("MBAG"), the manufacturer of Mercedes-Benz vehicles, has determined that certain MY 2019-2021 A-Class (177 platform), CLA-Class (118 platform), GLA-Class (247 platform), and GLB-Class (247 platform) vehicles might not be ... Read More »

    ENGINE (PWS)

    • TSB #LI47.50-P-070263

      Date Announced:
      DEC 01, 2020
      NHTSA ID:
      #10186139

      Check engine light on and FC P146264 sto- red in engine and fuel pump control units Read More »

    ENGINE AND ENGINE COOLING

    • 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 #ELW-ExhaustValve

      Date Announced:
      AUG 03, 2023
      NHTSA ID:
      #10241534

      In our continuing efforts to assure the proper performance of Mercedes-Benz products and to enhance the satisfaction of our customers, Mercedes-Benz USA, LLC (a??MBUSAa??) is extending the warranty coverage on the exhaust valve system in ... Read More »

    • TSB #LI05.10-P-075373

      Date Announced:
      OCT 01, 2022
      NHTSA ID:
      #10225807

      Complaint Chirping or tapping noise originating in area of front crankshaft pulley when engine cold. Noise may lessen as engine reaches operating temperature. Attachments File Description M260 noise. Read More »

    • TSB #SC-2022060006

      Date Announced:
      JUL 22, 2022
      NHTSA ID:
      #10217146

      Mercedes-Benz AG (a??MBAGa??), the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY 2020-2021 CLA-Class and GLA-Class (118 and 247 platform) vehicles, the engine coolant line may leak due to high pressure within ... Read More »

    • TSB #LI54.10-P-071832

      Date Announced:
      JUL 20, 2022
      NHTSA ID:
      #10217159

      Complaint - Vehicle cannot be unlocked/ vehicle does not start - Display message in instrument cluster "Battery - Start Engine - see Operator's Manual Cause Root cause is a bus keepawake in either the Headlight control unit or in one ... 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 »

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

    • TSB #Updates

      Date Announced:
      AUG 13, 2021
      NHTSA ID:
      #10205821

      IMPORTANT NEW EMISSION SERVICE CAMPAIGN INFORMATION. Read More »

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

    ENGINE AND ENGINE COOLING:EXHAUST SYSTEM

    • TSB #ELW-ExhaustValve

      Date Announced:
      AUG 03, 2023
      NHTSA ID:
      #10241534

      In our continuing efforts to assure the proper performance of Mercedes-Benz products and to enhance the satisfaction of our customers, Mercedes-Benz USA, LLC (a??MBUSAa??) is extending the warranty coverage on the exhaust valve system in ... 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 »

    • TSB #LI47.50-P-070263

      Date Announced:
      DEC 01, 2020
      NHTSA ID:
      #10186139

      Check engine light on and FC P146264 sto- red in engine and fuel pump control units 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

    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 #CL - 240401

      Date Announced:
      APR 30, 2024
      NHTSA ID:
      #10253708

      In our continuing efforts to assure the proper performance of Mercedes-Benz products and to enhance the satisfaction of our customers, Mercedes-Benz USA (MBUSA) is extending the coverage for the Fuel System Control Module (FSCM) software ... Read More »

    • TSB #OTA - 20240402

      Date Announced:
      APR 26, 2024
      NHTSA ID:
      #10253703

      This is to notify you of the Service Campaign OTA update for the MBUX system software in 750,313 Model Year (MY) MY19-24 A-Class, CLA, CLS, E-Class, EQB, GLA, GLB, GLC, GLE, GLS, GT 4-door (177, 118, 257, 213, 238, 243, 247, 253,167, 290 ... Read More »

    • TSB #LI82.60-P-077553

      Date Announced:
      FEB 23, 2024
      NHTSA ID:
      #10251356

      The radio station favorites list is no longer present after bus idle Saving process during download Perform software update in control unit HU6 in the head unit (A26/17) to version E871.1 (A 247 904 53 00). Read More »

    • TSB #LI82.60-P-077495

      Date Announced:
      FEB 15, 2024
      NHTSA ID:
      #10251118

      After clicking on the "Radio" selection function, the radio does not start and instead a permanent loading wheel is displayed. See attached picture for example. 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-OTA Comm Mod

      Date Announced:
      JAN 29, 2024
      NHTSA ID:
      #10249540

      Mercedes-Benz AG (??A?A?MBAG??A?A?), the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY 2019-2023 A-Class, CLA, E-Class, G-Class, GLA, GLB, GLC, GLE, GLS, and S-Class (177, 118, 238, 463, 247, 253, 167, and 222 ... 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 #LI80.50-P-077350

      Date Announced:
      JAN 12, 2024
      NHTSA ID:
      #10249537

      Complaint Customer complains about anti-theft alarm system triggering without obvious cause when the vehicle is parked and/or when entering the vehicle. All MFA2 and 167 derivates with code 882 may be affected. 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-Head Unit SW

      Date Announced:
      DEC 01, 2023
      NHTSA ID:
      #10248203

      Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY19-23 A-Class, CLA, CLS, E-Class, EQB, GLA, GLB, GLC, GLE, GLS, AMG GT (177, 118, 257, 213, 238, 243, 247, 253,167, 290 platform) vehicles, the ... 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 #LI82.85-P-075375

      Date Announced:
      JUN 09, 2023
      NHTSA ID:
      #10238424

      In the MBUX weather app, the temperature is displayed in the wrong unit (Fahrenheit instead of A?C, or vice versa). Read More »

    • TSB #LI82.20-P-074734

      Date Announced:
      APR 04, 2023
      NHTSA ID:
      #10235667

      Complaint Ambient lighting malfunctions sporadically, mainly in the Ocean Blue color value and with animation "ON". After the next ignition cycle, the ambient lighting functions again correctly. Read More »

    • TSB #NCU-2022010001

      Date Announced:
      FEB 10, 2023
      NHTSA ID:
      #10232320

      Mercedes-Benz AG (a??MBAGa??), the manufacturer of Mercedes-Benz, has produced certain MY 2021-2022 A-Class, CLA-Class, CLS-Class, E-Class, GLA-Class, GLB-Class, GLC-Class, GLEClass, GLS-Class, and AMG GT (177, 118, 257, 213, 247, 253, ... 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 #LI82.60-P-075292

      Date Announced:
      SEP 08, 2022
      NHTSA ID:
      #10222481

      Complaint Customer states after a bus sleep the SiriusXM category changes from "My Favorites" to "All Stations" or a different category. Read More »

    • TSB #LI54.10-P-071832

      Date Announced:
      JUL 20, 2022
      NHTSA ID:
      #10217159

      Complaint - Vehicle cannot be unlocked/ vehicle does not start - Display message in instrument cluster "Battery - Start Engine - see Operator's Manual Cause Root cause is a bus keepawake in either the Headlight control unit or in one ... Read More »

    • TSB #LI82.85-P-075044

      Date Announced:
      JUL 08, 2022
      NHTSA ID:
      #10217163

      Complaint The Apple Carplay interface cannot be controlled via the center console touchpad or the right-hand steering wheel touchpad. 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 #SC- 2022030017

      Date Announced:
      APR 27, 2022
      NHTSA ID:
      #10210919

      Mercedes-Benz AG (a??MBAGa??), the manufacturer of Mercedes-Benz, has determined that certain MY 2021-2022 CLA-Class, A-Class, CLS-Class, E-Class, GLA-Class, GLB-Class, GLC-Class (118, 177, 213, 238, 247, 253, and 257 platform) vehicles ... Read More »

    • TSB #LI82.60-P-072403

      Date Announced:
      APR 14, 2022
      NHTSA ID:
      #10210929

      Complaint Volume and bass level too low Cause Current sound amp (N40/3) software release. Important: a?? On vehicles with standard sound, the rear subwoofer (H21/35) emits the engine sound only (if equipped with M139 engine) a?? On ... Read More »

    • TSB #LI40.15-P-074659

      Date Announced:
      APR 01, 2022
      NHTSA ID:
      #10210926

      Complaint Fault message (yellow) in instrument cluster and TPM warning lamp. Individual or all tire pressure sensors are not recognized. Tire pressure monitoring system nonfunctional / temporarily unavailable. 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 #SC-2022010008

      Date Announced:
      FEB 04, 2022
      NHTSA ID:
      #10208671

      Mercedes-Benz AG (a??MBAGa??), the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY 2021-22 A-Class (177 platform), CLA-Class (118 platform), CLS-Class (257 platform), E-Class (213 and 238 platform), GLA-Class, ... 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 #LI82.60-P-072403

      Date Announced:
      DEC 22, 2021
      NHTSA ID:
      #10206078

      "Model series 118, 177, and 247 with M139 engine and wi- thout code 810 - sound system volume and bass level too low " Read More »

    • TSB # LI82.85-P-06996

      Date Announced:
      DEC 02, 2021
      NHTSA ID:
      #10206067

      MBUX multimedia system: Map data does not match with your system/the navigation system cannot be activated Read More »

    • TSB #LI8285P073418

      Date Announced:
      AUG 24, 2021
      NHTSA ID:
      #10205813

      On vehicles with code 077 HERMES dummy module the following functions are restricted, unavailable. 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 #LI35.31-P-072106

      Date Announced:
      NOV 12, 2020
      NHTSA ID:
      #10186133

      Fault code for short circuit to ground stored in AW- D_MFA2 - N15/17 - all-wheel drive (transfer case) Read More »

    • TSB #NCU-2020100018

      Date Announced:
      NOV 06, 2020
      NHTSA ID:
      #10184794

      Update Digital Owner's Manual Read More »

    • TSB #LI00.20-P-070791

      Date Announced:
      AUG 28, 2020
      NHTSA ID:
      #10179904

      Implausible "service due" instrument cluster message, head unit pop-up, or Mmc message Read More »

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

    ELECTRICAL SYSTEM:IGNITION:ANTI-THEFT:CONTROL MODULE

    • TSB #LI80.50-P-077350

      Date Announced:
      JAN 12, 2024
      NHTSA ID:
      #10249537

      Complaint Customer complains about anti-theft alarm system triggering without obvious cause when the vehicle is parked and/or when entering the vehicle. All MFA2 and 167 derivates with code 882 may be affected. 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 »

    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-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 #NCU2021080015

      Date Announced:
      SEP 17, 2021
      NHTSA ID:
      #10205838

      MBUX multimedia system control . Read More »

    ELECTRICAL SYSTEM:ADAS:PARKING ASSIST:SOFTWARE

    ELECTRICAL SYSTEM:ADAS:PARKING ASSIST:WARNING

    ELECTRICAL SYSTEM:PROPULSION SYSTEM:DC/DC CONVERTER

    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 »

    VISIBILITY

    • TSB #LI83.30-P-070309

      Date Announced:
      DEC 30, 2020
      NHTSA ID:
      #10186147

      Air Conditioning System Occasionally Does Not Cool Correctly At Outside Temperatures Above 40?C Read More »

    VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM

    • TSB #LI83.30-P-070309

      Date Announced:
      DEC 30, 2020
      NHTSA ID:
      #10186147

      Air Conditioning System Occasionally Does Not Cool Correctly At Outside Temperatures Above 40?C Read More »

    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 #LI63.20-P-076328

      Date Announced:
      JUL 13, 2023
      NHTSA ID:
      #10240170

      Cracking and creaking noise from area of inner B-pillar when driving on rough terrain. Spot welds in the area of the inner B-pillar could cause noises due to tension or contact of the sheet metal. 1. Read More »

    • TSB #SC-2022030025

      Date Announced:
      APR 08, 2022
      NHTSA ID:
      #10210924

      Mercedes-Benz AG (a??MBAGa??), the manufacturer of Mercedes-Benz, has determined that on certain MY 2020-2021 CLA-Class (118 platform) vehicles, the side impact strut of the front and rear doors may not correspond to the current series ... Read More »

    • TSB #LI72.00-P-074481

      Date Announced:
      MAR 03, 2022
      NHTSA ID:
      #10209880

      Complaint Staining at top and bottom of trim bars of doors. See example pictures 1, 2. Cause Discoloration of the protective coating of beltline door trim bars and upper door trim bars due to strong alkaline detergent in car washes. Read More »

    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 »

    TIRES:PRESSURE MONITORING AND REGULATING SYSTEMS

    • TSB #LI4015P073336

      Date Announced:
      JUL 26, 2021
      NHTSA ID:
      #10205789

      Front right tire pressure sensor sporadically or permanently not detected. Read More »

    WHEELS

    • TSB #LI40.15-P-074659

      Date Announced:
      APR 01, 2022
      NHTSA ID:
      #10210926

      Complaint Fault message (yellow) in instrument cluster and TPM warning lamp. Individual or all tire pressure sensors are not recognized. Tire pressure monitoring system nonfunctional / temporarily unavailable. Read More »

    WHEELS:SPACE SAVER WHEEL

    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 »

    LANE DEPARTURE

    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 »

    COMMUNICATION

    • TSB #LI82.85-P-071453

      Date Announced:
      JUL 31, 2020
      NHTSA ID:
      #10179966

      Incorrect time and/or instrument cluster message "SOS, service not activated" and/or Mercedes Me connect services nonfunctional Read More »

    COMMUNICATION:MANUFACTURER TELEMATICS

    • TSB #LI82.85-P-075375

      Date Announced:
      JUN 09, 2023
      NHTSA ID:
      #10238424

      In the MBUX weather app, the temperature is displayed in the wrong unit (Fahrenheit instead of A?C, or vice versa). Read More »

    EQUIPMENT

    • TSB #SC-2022060006

      Date Announced:
      JUL 22, 2022
      NHTSA ID:
      #10217146

      Mercedes-Benz AG (a??MBAGa??), the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY 2020-2021 CLA-Class and GLA-Class (118 and 247 platform) vehicles, the engine coolant line may leak due to high pressure within ... Read More »

    • TSB #LI54.10-P-071832

      Date Announced:
      JUL 20, 2022
      NHTSA ID:
      #10217159

      Complaint - Vehicle cannot be unlocked/ vehicle does not start - Display message in instrument cluster "Battery - Start Engine - see Operator's Manual Cause Root cause is a bus keepawake in either the Headlight control unit or in one ... Read More »

    • TSB #LI46.15-P-070510

      Date Announced:
      JUL 11, 2022
      NHTSA ID:
      #10217158

      Complaint Noises from the area of the steering column. - Creaking - Squeaking - Chattering - Humming - Grinding Cause At present, there are no known noise problems with the steering column. Read More »

    • TSB #LI82.85-P-075044

      Date Announced:
      JUL 08, 2022
      NHTSA ID:
      #10217163

      Complaint The Apple Carplay interface cannot be controlled via the center console touchpad or the right-hand steering wheel touchpad. 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 #SC-2022010008

      Date Announced:
      FEB 04, 2022
      NHTSA ID:
      #10208671

      Mercedes-Benz AG (a??MBAGa??), the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY 2021-22 A-Class (177 platform), CLA-Class (118 platform), CLS-Class (257 platform), E-Class (213 and 238 platform), GLA-Class, ... 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 »

    EQUIPMENT:ELECTRICAL

    • TSB #LI8285P073387Ver

      Date Announced:
      AUG 27, 2021
      NHTSA ID:
      #10205812

      The customer may note that the Dashcam feature is inoperable with one of the following complaints. Read More »

    • TSB #LI8270P073025

      Date Announced:
      AUG 09, 2021
      NHTSA ID:
      #10205804

      Insufficient charging or no wireless charging with iPhone 12. Read More »

    • TSB #LI8285P073387Ver

      Date Announced:
      AUG 09, 2021
      NHTSA ID:
      #10205811

      The customer may note that the Dashcam feature is inoperable with one of the following complaints. Read More »

    • TSB #LI8285P073387Ver

      Date Announced:
      AUG 03, 2021
      NHTSA ID:
      #10205810

      The customer may note that the Dashcam feature is inoperable with one of the following complaints. Read More »

    • TSB #LI8285P073387Ver

      Date Announced:
      AUG 02, 2021
      NHTSA ID:
      #10205809

      The customer may note that the Dashcam feature is inoperable with one of the following complaints: Read More »

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

    • TSB #LI82.60-P-077553

      Date Announced:
      FEB 23, 2024
      NHTSA ID:
      #10251356

      The radio station favorites list is no longer present after bus idle Saving process during download Perform software update in control unit HU6 in the head unit (A26/17) to version E871.1 (A 247 904 53 00). Read More »

    EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM)

    • TSB # LI82.85-P-06996

      Date Announced:
      DEC 02, 2021
      NHTSA ID:
      #10206067

      MBUX multimedia system: Map data does not match with your system/the navigation system cannot be activated Read More »

    • TSB #LI8285P069961

      Date Announced:
      AUG 30, 2021
      NHTSA ID:
      #10205806

      Upon selecting navigation, the central display may show the following message: "Map data does not match with your system. Please insert a medium containing the corresponding map data". the navigation menu cannot be opened. Read More »

    • TSB #LI82.85-P-071453

      Date Announced:
      JUL 31, 2020
      NHTSA ID:
      #10179966

      Incorrect time and/or instrument cluster message "SOS, service not activated" and/or Mercedes Me connect services nonfunctional Read More »

    EQUIPMENT:ELECTRICAL:INFOTAINMENT:SOFTWARE

    • TSB #LI82.85-P-075375

      Date Announced:
      JUN 09, 2023
      NHTSA ID:
      #10238424

      In the MBUX weather app, the temperature is displayed in the wrong unit (Fahrenheit instead of A?C, or vice versa). Read More »

    • TSB #LI82.70-P-071372

      Date Announced:
      AUG 10, 2020
      NHTSA ID:
      #10179961

      Mobile phone Apple iPhone 11/11Pro/11ProMax/SE 2020: The Bluetooth connection between the MBUX multimedia system and the mobile phone is briefly lost Read More »

    EQUIPMENT:ELECTRICAL:INFOTAINMENT:BLUETOOTH/WIFI

    • TSB #LI82.70-P-071372

      Date Announced:
      AUG 10, 2020
      NHTSA ID:
      #10179961

      Mobile phone Apple iPhone 11/11Pro/11ProMax/SE 2020: The Bluetooth connection between the MBUX multimedia system and the mobile phone is briefly lost 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 »

    • TSB #NCU2021080015

      Date Announced:
      SEP 17, 2021
      NHTSA ID:
      #10205838

      MBUX multimedia system control . Read More »

    • TSB #NCU-2021030010

      Date Announced:
      JUL 02, 2021
      NHTSA ID:
      #10199449

      Launch NCU - 2021030010 MY20-21 Various Add Supplementary Booklet to Printed Operators Manual Read More »

    • TSB #NCU-2020100018

      Date Announced:
      NOV 06, 2020
      NHTSA ID:
      #10184794

      Update Digital Owner's Manual 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 »

    UNKNOWN OR OTHER

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