2021 Mercedes-Benz CLA250
TSBs (Technical Service Bulletins)
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.
-
TSB #LI46.10-P-077314
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
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
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
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
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
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
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
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
Noise from the front axle when steering while stationary or when steering at low speeds Read More »
-
TSB #LI35.31-P-072105
Humming noises or vibrations from the area of the rear axle when maneuvering or moving off at traffic lights/intersections. Read More »
-
TSB #LI42.15-P-074455
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 »
-
TSB #NCU-2020080023
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 »
-
TSB #LI47.50-P-070263
Check engine light on and FC P146264 sto- red in engine and fuel pump control units Read More »
-
TSB #NCU-2023070019
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
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
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
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
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
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
"MY15+ M278 and M157 Equipped Vehicles with Fault Code ""P023400 a?? Boost Pressure is Too High"" " Read More »
-
TSB #Updates
IMPORTANT NEW EMISSION SERVICE CAMPAIGN INFORMATION. Read More »
-
TSB #LI1830P0597123
Gasket may settle causing a slight oil leak. Read More »
-
TSB #ELW-ExhaustValve
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 #LI8860P073470
Fuel filler flap opens slowly/switch flashes/tank is bleeding instrument cluster warning Read More »
-
TSB #LI47.50-P-070263
Check engine light on and FC P146264 sto- red in engine and fuel pump control units Read More »
-
TSB #LI8860P073470
Fuel filler flap opens slowly/switch flashes/tank is bleeding instrument cluster warning Read More »
-
TSB #LI2740P073393
Transmission does not shift into reverse. Read More »
-
TSB #LI35.31-P-072107
Communication errors with control unit AWD_M- FA2 - N15/17 - All-wheel drive (transfer case) Read More »
-
TSB #LI2700P0647671
Intial startup not possible after replacement of transmisson 725.0 or of electrohydraulic controller unit. Read More »
-
TSB #CL - 240401
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
"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
MBUX multimedia system: Map data does not match with your system/the navigation system cannot be activated Read More »
-
TSB #LI8285P073418
On vehicles with code 077 HERMES dummy module the following functions are restricted, unavailable. Read More »
-
TSB #LI80.57-P-072708
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
Fault code for short circuit to ground stored in AW- D_MFA2 - N15/17 - all-wheel drive (transfer case) Read More »
-
TSB #NCU-2020100018
Update Digital Owner's Manual Read More »
-
TSB #LI00.20-P-070791
Implausible "service due" instrument cluster message, head unit pop-up, or Mmc message Read More »
-
TSB #LI54.10-P-071499
Xentry Battery Tester results disagree with workshop assessment Read More »
-
TSB #LI80.50-P-077350
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 #LI82.85-P-076800
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 #OTA-24240201
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
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
MBUX multimedia system control . Read More »
-
TSB #LI5465P056779
Parktronic inoperable. Read More »
-
TSB #LI5465P056779
Parktronic inoperable. Read More »
-
TSB #LI54.10-P-071499
Xentry Battery Tester results disagree with workshop assessment Read More »
-
TSB #LI72.20-P-075746
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 #LI83.30-P-070309
Air Conditioning System Occasionally Does Not Cool Correctly At Outside Temperatures Above 40?C Read More »
-
TSB #LI83.30-P-070309
Air Conditioning System Occasionally Does Not Cool Correctly At Outside Temperatures Above 40?C Read More »
-
TSB #LI72.20-P-075746
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
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
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
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 »
-
TSB #LI72.20-P-075746
Tailgate opens unintentionally. Accidental or unnoticed activation of the button to open the tailgate on the vehicle key. E.g. when stored in trouser pocket, handbag etc. Read More »
-
TSB #LI72.20-P-075746
Tailgate opens unintentionally. Accidental or unnoticed activation of the button to open the tailgate on the vehicle key. E.g. when stored in trouser pocket, handbag etc. Read More »
-
TSB #LI72.20-P-075746
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 #LI4015P073336
Front right tire pressure sensor sporadically or permanently not detected. Read More »
-
TSB #LI40.15-P-074659
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 #NCU2021090006
Spare wheel. Read More »
-
TSB #LI91.18-P-077075
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 #LI20.10-P-060902
Engine diagnosis warning lamp activated - Fault code P012800 Read More »
-
TSB #LI82.27-P-072402
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 »
-
TSB #LI82.85-P-071453
Incorrect time and/or instrument cluster message "SOS, service not activated" and/or Mercedes Me connect services nonfunctional Read More »
-
TSB #LI82.85-P-075375
In the MBUX weather app, the temperature is displayed in the wrong unit (Fahrenheit instead of A?C, or vice versa). Read More »
-
TSB #SC-2022060006
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
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
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
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
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
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
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 #LI8285P073387Ver
The customer may note that the Dashcam feature is inoperable with one of the following complaints. Read More »
-
TSB #LI8270P073025
Insufficient charging or no wireless charging with iPhone 12. Read More »
-
TSB #LI8285P073387Ver
The customer may note that the Dashcam feature is inoperable with one of the following complaints. Read More »
-
TSB #LI8285P073387Ver
The customer may note that the Dashcam feature is inoperable with one of the following complaints. Read More »
-
TSB #LI8285P073387Ver
The customer may note that the Dashcam feature is inoperable with one of the following complaints: Read More »
-
TSB #LI82.60-P-077553
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-06996
MBUX multimedia system: Map data does not match with your system/the navigation system cannot be activated Read More »
-
TSB #LI8285P069961
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
Incorrect time and/or instrument cluster message "SOS, service not activated" and/or Mercedes Me connect services nonfunctional Read More »
-
TSB #LI82.85-P-075375
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
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 »
-
TSB #LI82.70-P-071372
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 »
-
TSB #P-SC-2022030014
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
MBUX multimedia system control . Read More »
-
TSB #NCU-2021030010
Launch NCU - 2021030010 MY20-21 Various Add Supplementary Booklet to Printed Operators Manual Read More »
-
TSB #NCU-2020100018
Update Digital Owner's Manual Read More »
-
TSB #SC-2021070006
Mercedes-Benz AG (a??MBAGa??), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year 2021 CLA (118 platform), GLE/GLS (167 platform), C-Class (205 platform), E-Class (213 platform), GLA (247 platform), GLC ... Read More »
-
TSB #LI82.85-P-075375
In the MBUX weather app, the temperature is displayed in the wrong unit (Fahrenheit instead of A?C, or vice versa). Read More »
-
TSB #NCU2021090006
Spare wheel. Read More »
-
TSB #NCU2021080015
MBUX multimedia system control . Read More »
-
TSB #Updates
IMPORTANT NEW EMISSION SERVICE CAMPAIGN INFORMATION. Read More »
-
TSB #LI2700P0647671
Intial startup not possible after replacement of transmisson 725.0 or of electrohydraulic controller unit. Read More »
-
TSB #LI1830P0597123
Gasket may settle causing a slight oil leak. Read More »
-
TSB #LI5465P056779
Parktronic inoperable. Read More »