Technical Service Bulletins (TSBs) for the 2017 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

    • TSB #SC-2019080019

      Date Announced:
      NOV 08, 2019
      NHTSA ID:
      #10169602

      Replace Steering Gear Bolts Read More »

    • TSB #LI46.10-P-057961

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

      Surface damage on steering wheel trim Read More »

    • TSB #LI33.30-P-056665

      Date Announced:
      JUL 18, 2013
      NHTSA ID:
      #10167550

      Single, throttle lift-off, clunking noise from the side shaft when starting off (audible at the wheel). The clunk is heard once when changing from forward to reverse (and vice versa). Read More »

    • TSB #LI46.10-P-056468

      Date Announced:
      JUL 03, 2013
      NHTSA ID:
      #10167551

      Vehicle wanders to the left or right. Read More »

    SUSPENSION

    ENGINE (PWS)

    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 »

    • TSB #LI27.60-P-059304

      Date Announced:
      JUL 01, 2014
      NHTSA ID:
      #10165845

      Vehicle rocks or lurches once after sitting in park with engine running for roughly 10 minutes Read More »

    • TSB #LI20.00-P-057734

      Date Announced:
      MAR 24, 2014
      NHTSA ID:
      #10167495

      Coolant warning message in the instrument cluster although the coolant level is OK Read More »

    • TSB #LI07.70-P-058650

      Date Announced:
      MAR 21, 2014
      NHTSA ID:
      #10167492

      Engine diagnosis warning lamp active - check engine light (CEL) on. The fault code P052E71 is logged in the fault memory of the engine control unit. Read More »

    • TSB #LI54.18-P-057927

      Date Announced:
      MAR 07, 2014
      NHTSA ID:
      #10167511

      Engine diagnosis warning lamp is active. One or more of the faults listed under 'Control unit / Fault code' relating to the throttle valve actuator (M16/6) and/or oxygen sensor (G3/1 and/or G3/2) are stored in the engine control unit. Read More »

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

    FUEL SYSTEM, GASOLINE

    FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY:FILLER PIPE AND CAP

    POWER TRAIN

    • TSB #LI35.00-P-072963

      Date Announced:
      JUL 14, 2021
      NHTSA ID:
      #10199675

      Vibrations/ humming when moving off or maneuvering with the wheels turned 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 #LI54.15-P-057373

      Date Announced:
      FEB 28, 2014
      NHTSA ID:
      #10167510

      The vehicle cannot be started The vehicle may start by itself shortly after the startup attempt with a delay, as the relay can be late closing. and/or The gear selection is displayed, but no gear is engaged. Read More »

    • TSB #LI27.60-P-058317

      Date Announced:
      FEB 05, 2014
      NHTSA ID:
      #10166987

      Transmission intermittently fails to shift, vehicle jolts in higher gears. The dual clutch transmission (DKG) control unit contains the stored FC 92177 or 92100 - The shift valve of the internal shaft has a malfunction. Read More »

    POWER TRAIN:AUTOMATIC TRANSMISSION

    • TSB #LI2700P0647671

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

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

    ELECTRICAL SYSTEM

    • TSB #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 #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 #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 #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 #LI54.30-P-067588

      Date Announced:
      JAN 02, 2020
      NHTSA ID:
      #10171615

      Clock in the instrument cluster stops Read More »

    • TSB #LI8285P069318v2

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

      Audio 20: Apple CarPlay displays pixelated image Read More »

    • TSB #LI54 10-P-066342

      Date Announced:
      OCT 26, 2017
      NHTSA ID:
      #10158370

      Vehicle does not start, battery discharged. Read More »

    • TSB #LI54 10-P-065994

      Date Announced:
      SEP 18, 2017
      NHTSA ID:
      #10158238

      Direct starting/ ECO start/stop inoperative and fault code B21059A current and stored in CBC (front SAM) Read More »

    • TSB #LI82 85-P-066086

      Date Announced:
      JUL 31, 2017
      NHTSA ID:
      #10157076

      Starter battery discharged due to excessively high quiescent current 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 »

    • TSB #LI54.18-P-057974

      Date Announced:
      MAR 13, 2014
      NHTSA ID:
      #10167512

      ESP?, BAS, PRE-SAFE?, HOLD function, Hill-Start Assist and ESP? trailer stabilization are unavailable due to a malfunction. Also the adaptive brake lights, Adaptive Brake Assist and/or ATTENTION ASSIST may have failed or be deactivated. Read More »

    • TSB #LI54.15-P-057373

      Date Announced:
      FEB 28, 2014
      NHTSA ID:
      #10167510

      The vehicle cannot be started The vehicle may start by itself shortly after the startup attempt with a delay, as the relay can be late closing. and/or The gear selection is displayed, but no gear is engaged. Read More »

    • TSB #LI20.00-P-057734

      Date Announced:
      FEB 14, 2014
      NHTSA ID:
      #10166981

      Implausible coolant warning message in instrument cluster Read More »

    • TSB #LI8285P055695

      Date Announced:
      AUG 05, 2013
      NHTSA ID:
      #10205237

      The COMAND unit does not start or the display remains dark. 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 »

    ELECTRICAL SYSTEM:SOFTWARE

    • TSB #Launch NCU - 202

      Date Announced:
      JAN 07, 2021
      NHTSA ID:
      #10187793

      Mercedes-Benz AG (?MBAG?), the manufacturer of Mercedes-Benz, has determined that on certain Model Year (?MY?) 2013-2017 B-Class, C-Class, CLA-Class, CLS-Class, E-Class, G-Class, GL-Class, GLA-Class, GLC-Class, GLE-Class, GLK-Class, ... 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 #SC-2018110008

      Date Announced:
      APR 18, 2019
      NHTSA ID:
      #10160735

      Update restraint system control unit software Read More »

    • TSB #2018010007

      Date Announced:
      FEB 16, 2018
      NHTSA ID:
      #10135514

      Update HERMES control unit software Read More »

    • TSB #LI8270P056963

      Date Announced:
      AUG 21, 2013
      NHTSA ID:
      #10205234

      Software update of COMAND Online control unit. Read More »

    • TSB #LI8270P055572

      Date Announced:
      AUG 05, 2013
      NHTSA ID:
      #10205233

      Mobile phone cotacts are not transferred completely. Read More »

    ELECTRICAL SYSTEM:ADAS:PARKING ASSIST:SOFTWARE

    ELECTRICAL SYSTEM:ADAS:PARKING ASSIST:WARNING

    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

    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 #LI7721P057021

      Date Announced:
      AUG 09, 2013
      NHTSA ID:
      #10205218

      New roller blind with blind bearing does not fit in previous panoramic with old roof mechanisms or blind guide rails. Read More »

    SEAT BELTS

    STRUCTURE:BODY:DOOR

    TIRES

    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

    INTERIOR LIGHTING

    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 »

    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 #LI82.10-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 #NCU - HVAC Warra

      Date Announced:
      MAY 21, 2020
      NHTSA ID:
      #10176670

      To enhance the satisfaction of our customers, avoid further costs of litigation and return focus to its core businesses, Mercedes-Benz USA, LLC (MBUSA) has entered into a settlement regarding claims relating to alleged mold and mildew ... Read More »

    • TSB #LI54-18-P-069309

      Date Announced:
      FEB 19, 2019
      NHTSA ID:
      #10155136

      Fault message "SRS - Service Required" displayed in instrument cluster and SRS lamp active Read More »

    • TSB #LI8285P069318v2

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

      Audio 20: Apple CarPlay displays pixelated image Read More »

    • TSB #LI82 85-P-068378

      Date Announced:
      JUL 10, 2018
      NHTSA ID:
      #10151945

      Audio 20: Symbols in the status line in the central display can overlap Read More »

    • TSB #LI68.20-P-058781

      Date Announced:
      MAR 31, 2014
      NHTSA ID:
      #10167518

      Creaking noises in area of center console Read More »

    • TSB #LI68.20-P-058749

      Date Announced:
      MAR 18, 2014
      NHTSA ID:
      #10167517

      The center stowage compartment does on close or open smoothly. Read More »

    • TSB #GI88.40-P-057430

      Date Announced:
      FEB 03, 2014
      NHTSA ID:
      #10166976

      Message in instrument cluster "DISTRONIC PLUSCurrently Unavailable - See Owner's Manual" Read More »

    EQUIPMENT:ELECTRICAL

    EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM)

    • TSB #Launch NCU - 202

      Date Announced:
      JAN 07, 2021
      NHTSA ID:
      #10187793

      Mercedes-Benz AG (?MBAG?), the manufacturer of Mercedes-Benz, has determined that on certain Model Year (?MY?) 2013-2017 B-Class, C-Class, CLA-Class, CLS-Class, E-Class, G-Class, GL-Class, GLA-Class, GLC-Class, GLE-Class, GLK-Class, ... 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 #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:OTHER:OWNERS/SERVICE/OTHER MANUAL

    EQUIPMENT ADAPTIVE/MOBILITY

    UNKNOWN OR OTHER