Technical Service Bulletins (TSBs) for the 2020 GLB250 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 #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 #LI46.35-P-074816

      Date Announced:
      MAY 09, 2022
      NHTSA ID:
      #10213049

      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 #LI46.11-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 »

    • TSB #LI40.10-P-072604

      Date Announced:
      MAR 09, 2021
      NHTSA ID:
      #10191286

      Slight grinding noise when steering is turned to full lock 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 »

    • TSB #SC-2020010009

      Date Announced:
      JAN 30, 2020
      NHTSA ID:
      #10171660

      Replace Torsion Bar of the Rear Axle Read More »

    SUSPENSION:FRONT:SPRINGS:TORSION BAR

    BRAKES (PWS)

    • TSB #LI42.10-P-075968

      Date Announced:
      MAR 02, 2023
      NHTSA ID:
      #10233782

      Complaint Squeaking noises from the front axle brakes when operating the brakes. The noise occurs regardless of the temperature. Cause The noise occurs due to friction between the lining and the brake caliper. Read More »

    ENGINE (PWS)

    • TSB #LI27.00-P-071367

      Date Announced:
      JUN 29, 2020
      NHTSA ID:
      #10177567

      When leaving gliding mode, the transmission can shift to neutral by itself. The complaint only occurs in drive program E. Check software release of transmission control unit and perform a software update. Read More »

    • TSB #LI54.30-P-070030

      Date Announced:
      JUN 29, 2020
      NHTSA ID:
      #10177568

      After starting the engine, the instrument cluster display (A40/16) may show "4MATIC inoperative" erroneously.Notes: Vehicles not equipped with 4MATIC are predominantly affected. Read More »

    • TSB #LI54.30-P-070482

      Date Announced:
      MAY 19, 2020
      NHTSA ID:
      #10176663

      Check engine indicator light active and fault code P261029/P02FF85/P02FF02 stored in engine control unit Read More »

    ENGINE AND ENGINE COOLING

    • TSB #LI47.20-P-071172

      Date Announced:
      APR 23, 2024
      NHTSA ID:
      #10253715

      Check engine light active and FC P146364 Temp. and pressure sensor B4/7 is stored in Engine control unit and Fuel pump control unit. Software parameter in Fuel pump control unit. 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 #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 #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: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 »

    ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY

    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 #LI47.20-P-071172

      Date Announced:
      APR 23, 2024
      NHTSA ID:
      #10253715

      Check engine light active and FC P146364 Temp. and pressure sensor B4/7 is stored in Engine control unit and Fuel pump control unit. Software parameter in Fuel pump control unit. Read More »

    • TSB #EW - FSCM SW

      Date Announced:
      APR 12, 2024
      NHTSA ID:
      #10253706

      IMPORTANT EMISSION EXTENDED WARRANTY INFORMATION 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 ("MBUSA") is extending the ... Read More »

    • TSB #ELW - Fuel Hose

      Date Announced:
      JUL 21, 2023
      NHTSA ID:
      #10240204

      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 fuel supply hose in ... Read More »

    FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP

    • TSB #LI47.50-P-070263

      Date Announced:
      JUN 26, 2020
      NHTSA ID:
      #10177566

      Check engine light active and FC P146264 Temp. and pressure sensor B4/7 is stored in engine control unit and tank control unit. Software parameter in Fuel pump control unit. Update SW in FSCU control unit. Read More »

    POWER TRAIN

    • TSB #NCU-2022110007

      Date Announced:
      DEC 09, 2022
      NHTSA ID:
      #10228824

      Mercedes-Benz AG (a??MBAGa??), the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY 2020-2021 GLA-Class and GLB-Class (156/247 platform) vehicles, the transmission bearing cap cover does not correspond to current ... Read More »

    • TSB #NCU-2022050022

      Date Announced:
      JUN 03, 2022
      NHTSA ID:
      #10215220

      Mercedes-Benz AG (a??MBAGa??), the manufacturer of Mercedes-Benz, has determined that on certain MY 2019-2020 CLA-Class, A-Class, and GLB-Class (118, 177, and 247 platform) vehicles, the transmission control unit software may not ... Read More »

    • TSB #P-SC-2021020029

      Date Announced:
      FEB 25, 2021
      NHTSA ID:
      #10189413

      Replace Transmission Mount Read More »

    POWER TRAIN:AUTOMATIC TRANSMISSION

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

    • TSB #LI27.00-P-071367

      Date Announced:
      JUN 29, 2020
      NHTSA ID:
      #10177567

      When leaving gliding mode, the transmission can shift to neutral by itself. The complaint only occurs in drive program E. Check software release of transmission control unit and perform a software update. 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 #LI47.20-P-071172

      Date Announced:
      APR 23, 2024
      NHTSA ID:
      #10253715

      Check engine light active and FC P146364 Temp. and pressure sensor B4/7 is stored in Engine control unit and Fuel pump control unit. Software parameter in Fuel pump control unit. Read More »

    • TSB #EW - FSCM SW

      Date Announced:
      APR 12, 2024
      NHTSA ID:
      #10253706

      IMPORTANT EMISSION EXTENDED WARRANTY INFORMATION 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 ("MBUSA") is extending the ... 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 #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 #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 #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 #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 #LI82.85-P-071394

      Date Announced:
      FEB 24, 2021
      NHTSA ID:
      #10189407

      In XENTRY diagnosis, the message "MBUX multimedia system control unit is defective (hard drive, internal fault)" appears while attempting to communicate with the MBUX multimedia system (A26/17) Read More »

    • TSB #LI82.85-P-069381

      Date Announced:
      JAN 04, 2021
      NHTSA ID:
      #10187785

      The following complaints may be noted by the customer: - The MBUX multimedia system (A26/17) starts route guidance without user input and does not provide any audio notification. 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 »

    • TSB #LI82.85-P-071394

      Date Announced:
      JUN 30, 2020
      NHTSA ID:
      #10177569

      In XENTRY diagnosis, the message "MBUX multimedia system control unit is defective (hard drive, internal fault)" appears while attempting to communicate with the MBUX multimedia system (A26/17). Internal hard drive defect. Read More »

    • TSB #LI54.21-P-070658

      Date Announced:
      JUN 05, 2020
      NHTSA ID:
      #10177544

      A fixed SRS message is displayed in the instrument cluster. Cause is not safety-relevant and does not affect function of safety systems. Read More »

    • TSB #LI00.20-P-070791

      Date Announced:
      MAY 28, 2020
      NHTSA ID:
      #10176665

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

    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 »

    • TSB #LI54.30-P-070030

      Date Announced:
      JUN 29, 2020
      NHTSA ID:
      #10177568

      After starting the engine, the instrument cluster display (A40/16) may show "4MATIC inoperative" erroneously.Notes: Vehicles not equipped with 4MATIC are predominantly affected. Read More »

    • TSB #LI00.20-P-070791

      Date Announced:
      MAY 28, 2020
      NHTSA ID:
      #10176665

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

    ELECTRICAL SYSTEM:INSTRUMENT PANEL:FUEL GAUGE:FUEL LEVEL FLOAT/SENSOR/SENDING UNIT

    • TSB #LI47.50-P-070263

      Date Announced:
      JUN 26, 2020
      NHTSA ID:
      #10177566

      Check engine light active and FC P146264 Temp. and pressure sensor B4/7 is stored in engine control unit and tank control unit. Software parameter in Fuel pump control unit. Update SW in FSCU control unit. 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 #LI82.85-P-071529

      Date Announced:
      JUL 23, 2020
      NHTSA ID:
      #10178737

      MBUX multimedia system: "Favorites" and "Recent destinations" not available Read More »

    • TSB #LI27.00-P-071367

      Date Announced:
      JUN 29, 2020
      NHTSA ID:
      #10177567

      When leaving gliding mode, the transmission can shift to neutral by itself. The complaint only occurs in drive program E. Check software release of transmission control unit and perform a software update. Read More »

    • TSB #LI54.30-P-070030

      Date Announced:
      JUN 29, 2020
      NHTSA ID:
      #10177568

      After starting the engine, the instrument cluster display (A40/16) may show "4MATIC inoperative" erroneously.Notes: Vehicles not equipped with 4MATIC are predominantly affected. Read More »

    • TSB #LI47.50-P-070263

      Date Announced:
      JUN 26, 2020
      NHTSA ID:
      #10177566

      Check engine light active and FC P146264 Temp. and pressure sensor B4/7 is stored in engine control unit and tank control unit. Software parameter in Fuel pump control unit. Update SW in FSCU control unit. Read More »

    ELECTRICAL SYSTEM:ADAS:DRIVER MONITORING:CAMERA/SENSOR

    • TSB #SC-2022010001

      Date Announced:
      FEB 25, 2022
      NHTSA ID:
      #10208670

      Mercedes-Benz AG (a??MBAGa??), the manufacturer of Mercedes-Benz, has produced certain MY 2021-2022 A-Class, CLS-Class, E-Class, GLA-Class, GLB-Class, GLE-Class, GLS-Class, and GT-Class (167, 177, 213, 247, 257, and 290 platform) ... 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 »

    LIGHTING (PWS)

    • TSB #LI82.10-P-064766

      Date Announced:
      JUN 30, 2020
      NHTSA ID:
      #10177571

      Lamp unit fogged or droplets forming. Due to the vent openings, the lamp unit is an "open system". This means that acidic gases, moisture, dirt and exhaust gases can penetrate it. This can result in deposits on the diffuser and lens. Read More »

    EXTERIOR LIGHTING:HEADLIGHTS:CONCEALMENT DEVICES

    • TSB #LI82.10-P-064766

      Date Announced:
      JUN 30, 2020
      NHTSA ID:
      #10177571

      Lamp unit fogged or droplets forming. Due to the vent openings, the lamp unit is an "open system". This means that acidic gases, moisture, dirt and exhaust gases can penetrate it. This can result in deposits on the diffuser and lens. Read More »

    VISIBILITY

    • TSB #LI72.00-P-076031

      Date Announced:
      MAR 08, 2023
      NHTSA ID:
      #10233789

      Complaint Excessive resistance of door side windows when being raised/lowered, cracking and squeaking noises. Cause Sealing lip of inner sealing rail (see picture 1 and picture 2, pos. Read More »

    • TSB #LI83.10-P-075602

      Date Announced:
      JAN 04, 2023
      NHTSA ID:
      #10231040

      Complaint Noise can be heard coming from the air conditioning system at higher blower motor speeds. Cause Leaves/foreign objects have entered through the water drain grille in the water drain thereby causing an imbalance and noise in ... Read More »

    VISIBILITY:WINDSHIELD

    • TSB #LI67.10-P-071418

      Date Announced:
      JUN 30, 2020
      NHTSA ID:
      #10177573

      Wind noises at top of windshield as of approx. 60mph. Sealing lip between windshield and roof. If the gap dimension is outside the tolerance, remove the windshield and reinstall according to the specifications in AR67. Read More »

    VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:ENGINE COOLANT HOSES AND FITTINGS

    AIR BAGS

    • TSB #LI54.21-P-070658

      Date Announced:
      JUN 05, 2020
      NHTSA ID:
      #10177544

      A fixed SRS message is displayed in the instrument cluster. Cause is not safety-relevant and does not affect function of safety systems. 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 #NCU- B-Pillar ID

      Date Announced:
      JAN 18, 2024
      NHTSA ID:
      #10249731

      Mercedes-Benz AG (MBAG), the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY 2020-2021 GLA and GLB (247 platform) vehicles, the identification plate on the B-pillar does not correspond to current specifications. Read More »

    • TSB #LI72.00-P-076031

      Date Announced:
      MAR 08, 2023
      NHTSA ID:
      #10233789

      Complaint Excessive resistance of door side windows when being raised/lowered, cracking and squeaking noises. Cause Sealing lip of inner sealing rail (see picture 1 and picture 2, pos. Read More »

    • TSB #LI72.00-P-075656

      Date Announced:
      DEC 05, 2022
      NHTSA ID:
      #10228813

      Complaint Staining on door trim strips and top and bottom trim elements on rear side windows. See example pictures 1, 2 and 3. Read More »

    • TSB #NCU-2022070018

      Date Announced:
      SEP 30, 2022
      NHTSA ID:
      #10222486

      Mercedes-Benz AG (a??MBAGa??), the manufacturer of Mercedes-Benz, has determined that in certain MY 2020 A-Class and GLB-Class (177 and 247 platform) vehicles, the contact surface of the upper hinges to the B-pillar on the right and ... Read More »

    STRUCTURE:FRAME AND MEMBERS

    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

    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 »

    • TSB #Launch NCU - 202

      Date Announced:
      APR 01, 2021
      NHTSA ID:
      #10195218

      water could enter rear wheel arch 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 #LI91.18-P-071629

      Date Announced:
      AUG 31, 2020
      NHTSA ID:
      #10181194

      BR167 / MFA2 Cracks In Artico Seat Cushion Cover On Front Seat Read More »

    LANE DEPARTURE

    • TSB #LI54.71-P-072473

      Date Announced:
      MAR 29, 2021
      NHTSA ID:
      #10191267

      X247 code 233 - Blind Spot Assist inoperative (fault message in IC) - Fault code C110178 due Positioning of rear left radar sensor Read More »

    COMMUNICATION

    • TSB #LI82.85-P-069381

      Date Announced:
      JAN 04, 2021
      NHTSA ID:
      #10187785

      The following complaints may be noted by the customer: - The MBUX multimedia system (A26/17) starts route guidance without user input and does not provide any audio notification. 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 #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 #LI20.20-P-073274

      Date Announced:
      JUL 08, 2021
      NHTSA ID:
      #10199660

      Coolant warning in instrument cluster - Leak in coolant line Read More »

    • TSB #LI82.85-P-068846

      Date Announced:
      JUL 06, 2021
      NHTSA ID:
      #10199654

      "Free browsing, Internet access via Wi-Fi hotspot and Internet radio nonfunctional" 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 #Launch NCU 20201

      Date Announced:
      MAR 05, 2021
      NHTSA ID:
      #10191258

      Mercedes-Benz AG (?MBAG?), the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY 2020 GLB-Class (247 platform) vehicles, the towing eye storage compartment does not meet specification, and the towing eye may be ... Read More »

    • TSB #Launch NCU - 202

      Date Announced:
      JAN 07, 2021
      NHTSA ID:
      #10187794

      Mercedes-Benz AG (?MBAG?), the manufacturer of Mercedes-Benz, has determined that on certain Model Year (?MY?) 2020 GLB-Class (247 platform), the anti-slip mat (reversible mat) was not included during the production process. Read More »

    • TSB #LI82.85-P-069381

      Date Announced:
      JAN 04, 2021
      NHTSA ID:
      #10187785

      The following complaints may be noted by the customer: - The MBUX multimedia system (A26/17) starts route guidance without user input and does not provide any audio notification. Read More »

    • TSB #LI91.18-P-071629

      Date Announced:
      AUG 31, 2020
      NHTSA ID:
      #10181194

      BR167 / MFA2 Cracks In Artico Seat Cushion Cover On Front Seat Read More »

    • TSB #LI82.85-P-071394

      Date Announced:
      JUN 30, 2020
      NHTSA ID:
      #10177569

      In XENTRY diagnosis, the message "MBUX multimedia system control unit is defective (hard drive, internal fault)" appears while attempting to communicate with the MBUX multimedia system (A26/17). Internal hard drive defect. Read More »

    • TSB #LI82.10-P-064766

      Date Announced:
      JUN 30, 2020
      NHTSA ID:
      #10177571

      Lamp unit fogged or droplets forming. Due to the vent openings, the lamp unit is an "open system". This means that acidic gases, moisture, dirt and exhaust gases can penetrate it. This can result in deposits on the diffuser and lens. Read More »

    • TSB #LI67.10-P-071418

      Date Announced:
      JUN 30, 2020
      NHTSA ID:
      #10177573

      Wind noises at top of windshield as of approx. 60mph. Sealing lip between windshield and roof. If the gap dimension is outside the tolerance, remove the windshield and reinstall according to the specifications in AR67. Read More »

    • TSB #LI72.20-P-070556

      Date Announced:
      NOV 14, 2019
      NHTSA ID:
      #10169586

      EASY-Pack liftgate does not fully open 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 02, 2021
      NHTSA ID:
      #10205809

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

    • TSB #LI82.70-P-071024

      Date Announced:
      JUN 25, 2020
      NHTSA ID:
      #10177565

      The mobile phone address book is not transferred completely to the multimedia system (COMAND or MBUX). In some cases, the call list shows just the telephone numbers but no names. Read More »

    • TSB #LI82.70-P-071372

      Date Announced:
      JUN 22, 2020
      NHTSA ID:
      #10177563

      During a phone call, the Bluetooth connection between the MBUX multimedia system (A26/17) and a paired mobile phone may be briefly lost. The mobile phone will then reconnect with no user input. 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 »

    • TSB #LI82.85-P-068846

      Date Announced:
      JUL 06, 2021
      NHTSA ID:
      #10199654

      "Free browsing, Internet access via Wi-Fi hotspot and Internet radio nonfunctional" Read More »

    EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM)

    • 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-072730

      Date Announced:
      MAR 31, 2021
      NHTSA ID:
      #10194141

      New map data cannot be downloaded by the customer from the Mercedes me PortalNew map data cannot be downloaded by the customer from the Mercedes me Portal Read More »

    • TSB #LI82.85-P-071394

      Date Announced:
      JUN 30, 2020
      NHTSA ID:
      #10177569

      In XENTRY diagnosis, the message "MBUX multimedia system control unit is defective (hard drive, internal fault)" appears while attempting to communicate with the MBUX multimedia system (A26/17). Internal hard drive defect. 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:LABELS

    EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

    • 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 »

    EQUIPMENT ADAPTIVE/MOBILITY

    • TSB #LI82.85-P-068846

      Date Announced:
      JUL 06, 2021
      NHTSA ID:
      #10199654

      "Free browsing, Internet access via Wi-Fi hotspot and Internet radio nonfunctional" 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 »

    • TSB #Launch NCU - 202

      Date Announced:
      JAN 07, 2021
      NHTSA ID:
      #10187794

      Mercedes-Benz AG (?MBAG?), the manufacturer of Mercedes-Benz, has determined that on certain Model Year (?MY?) 2020 GLB-Class (247 platform), the anti-slip mat (reversible mat) was not included during the production process. Read More »

    • TSB #LI67.10-P-071418

      Date Announced:
      JUN 30, 2020
      NHTSA ID:
      #10177573

      Wind noises at top of windshield as of approx. 60mph. Sealing lip between windshield and roof. If the gap dimension is outside the tolerance, remove the windshield and reinstall according to the specifications in AR67. Read More »

    EQUIPMENT:APPLIANCE:AIR CONDITIONER

    EQUIPMENT:APPLIANCE:TV/RADIO/SPEAKERS

    • TSB #LI82.85-P-071394

      Date Announced:
      FEB 24, 2021
      NHTSA ID:
      #10189407

      In XENTRY diagnosis, the message "MBUX multimedia system control unit is defective (hard drive, internal fault)" appears while attempting to communicate with the MBUX multimedia system (A26/17) Read More »

    UNKNOWN OR OTHER

    • 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 #LI1830P0597123

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

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