Technical Service Bulletins (TSBs) for the 2019 GLA250 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 #LI46.35-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 #LI46.35-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 15-P-068465

      Date Announced:
      JUL 25, 2018
      NHTSA ID:
      #10151962

      Plastic element on release lever of manual steering column adjuster loose. Read More »

    • TSB #LI46 35-P-067121

      Date Announced:
      OCT 09, 2017
      NHTSA ID:
      #10158322

      Cracking noise at limit stop of electric steering Read More »

    • TSB #LI46.10-P-057961

      Date Announced:
      FEB 18, 2014
      NHTSA ID:
      #10167000

      Surface damage on steering wheel trim Read More »

    SUSPENSION

    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 #LI49 00-P-066785

      Date Announced:
      JUL 24, 2017
      NHTSA ID:
      #10158288

      Noises Made by M133 Exhaust Gas Flap 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 #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

    FUEL SYSTEM, GASOLINE

    POWER TRAIN

    • TSB #LI35.31-P-072107

      Date Announced:
      NOV 12, 2020
      NHTSA ID:
      #10186134

      Communication errors with control unit AWD_M- FA2 - N15/17 - All-wheel drive (transfer case) Read More »

    • TSB #LI35.31-P-072105

      Date Announced:
      SEP 12, 2020
      NHTSA ID:
      #10186132

      Humming/ vibrations/ noises from the area of the rear axle while maneuvering or when moving off Read More »

    • TSB #LI27 50-P-064440

      Date Announced:
      JUL 16, 2018
      NHTSA ID:
      #10151943

      7G-DCT: Scratching noise when changing gear from D to R when transmission cold. Read More »

    • TSB #LI27 50-P-064440

      Date Announced:
      AUG 21, 2017
      NHTSA ID:
      #10157086

      7G-DCT: Scratching noise when changing gear from D to R with transmission cold. Read More »

    POWER TRAIN:DRIVELINE:DRIVESHAFT

    POWER TRAIN:AXLE ASSEMBLY

    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 #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 #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-076799

      Date Announced:
      AUG 18, 2023
      NHTSA ID:
      #10241790

      The Mercedes me connect services cannot be activated. The remote status data does not update. Error in N112/9 - control unit for telematics services (HERMES). 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-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 #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 #LI54.30-P-070902

      Date Announced:
      FEB 19, 2020
      NHTSA ID:
      #10172681

      Event memory in the instrument cluster mileage readings intermittently inaccurate Read More »

    • TSB #LI54 30-P-069742

      Date Announced:
      JUN 18, 2019
      NHTSA ID:
      #10162611

      Head-up display (HUD) code 463 ? lines on the display, display flickers Read More »

    • TSB #LI82 85-P-069725

      Date Announced:
      APR 23, 2019
      NHTSA ID:
      #10160727

      COMAND Online (code 531): Wrong date in system settings, incorrect time in instrument cluster Read More »

    • TSB #LI82-85-P-069318

      Date Announced:
      FEB 05, 2019
      NHTSA ID:
      #10155129

      Audio 20: Apple CarPlay displays pixelated image Read More »

    • TSB #LI8285P069318v2

      Date Announced:
      JAN 30, 2019
      NHTSA ID:
      #10154028

      Audio 20: Apple CarPlay displays pixelated image Read More »

    • TSB #LI8285P069318

      Date Announced:
      JAN 23, 2019
      NHTSA ID:
      #10154026

      Audio 20: Apple CarPlay displays pixelated image Read More »

    • TSB #LI54 10-P-066342

      Date Announced:
      JUN 02, 2017
      NHTSA ID:
      #10158199

      Vehicle does not start, battery discharged. Read More »

    • TSB #LI54.18-P-059361

      Date Announced:
      JUL 08, 2014
      NHTSA ID:
      #10165847

      Diverse fault messages in instrument cluster. Distronic, ESP, tire pressure monitoring, engine indicator lamp Diverse CAN communication errors stored in quick test Possible malfunctions in Parktronic or Active Parking Assist. Read More »

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

    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 #LI68 10-P-066437

      Date Announced:
      JUN 12, 2017
      NHTSA ID:
      #10158209

      Instrument panel noises in area of instrument cluster faceplate in BR 117 / 156 / 176 Read More »

    ELECTRICAL SYSTEM:SOFTWARE

    • 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 »

    VISIBILITY

    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 »

    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

    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 »

    FORWARD COLLISION AVOIDANCE

    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 »

    • TSB #LI20.10-P-060902

      Date Announced:
      AUG 03, 2020
      NHTSA ID:
      #10179907

      Engine diagnosis warning lamp activated - Fault code P012800 Read More »

    BACK OVER PREVENTION

    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 »

    • 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

    • TSB #LI82.85-P-076799

      Date Announced:
      AUG 18, 2023
      NHTSA ID:
      #10241790

      The Mercedes me connect services cannot be activated. The remote status data does not update. Error in N112/9 - control unit for telematics services (HERMES). 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 #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 #LI82 85-P-069318

      Date Announced:
      APR 02, 2019
      NHTSA ID:
      #10160622

      Audio 20: Apple CarPlay displays pixelated image Read More »

    • TSB #LI82-85-P-069318

      Date Announced:
      FEB 05, 2019
      NHTSA ID:
      #10155129

      Audio 20: Apple CarPlay displays pixelated image Read More »

    • TSB #LI8285P069318v2

      Date Announced:
      JAN 30, 2019
      NHTSA ID:
      #10154028

      Audio 20: Apple CarPlay displays pixelated image Read More »

    • TSB #LI8285P069318

      Date Announced:
      JAN 23, 2019
      NHTSA ID:
      #10154026

      Audio 20: Apple CarPlay displays pixelated image Read More »

    • TSB #LI82 60-P-066763

      Date Announced:
      AUG 21, 2018
      NHTSA ID:
      #10152001

      NTG5*1, Audio 20 - after ECO start/stop, USB music stick is reloaded and music playback begins at track 1. Read More »

    • TSB #LI46 15-P-068465

      Date Announced:
      JUL 25, 2018
      NHTSA ID:
      #10151962

      Plastic element on release lever of manual steering column adjuster loose. Read More »

    • TSB #LI49 00-P-066785

      Date Announced:
      JUL 24, 2017
      NHTSA ID:
      #10158288

      Noises Made by M133 Exhaust Gas Flap Read More »

    • TSB #LI82 70-P-066767

      Date Announced:
      JUL 18, 2017
      NHTSA ID:
      #10158267

      COMAND Online: Some contacts on the telephone are not found via voice control. Read More »

    • TSB #LI82 85-P-066702

      Date Announced:
      JUL 07, 2017
      NHTSA ID:
      #10158250

      Garmin MAP PILOT: Traffic information service and possibly voice control inoperative after navigation software update using Download Manager version 2.0.29 or 2.0.30 Read More »

    • TSB #GI3330P061452

      Date Announced:
      AUG 15, 2016
      NHTSA ID:
      #10205143

      Clacking noises from the front axle area. Read More »

    EQUIPMENT:ELECTRICAL

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

    • 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 #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-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 »

    • TSB #LI82 85-P-066702

      Date Announced:
      JUL 07, 2017
      NHTSA ID:
      #10158250

      Garmin MAP PILOT: Traffic information service and possibly voice control inoperative after navigation software update using Download Manager version 2.0.29 or 2.0.30 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:OTHER:LABELS

    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 »

    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