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.
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 »
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 »
Complaint Squeaking noise from area of input shaft of electric steering Cause Inadequate lubrication. Remedy Grease/lubricate sealing area of input shaft. Read More »
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 »
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 »
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 »
Complaint Brake squeal from front axle when braking to a standstill. Cause Frictional vibrations between brake lining and brake disk. There is no impact to braking capabilities. Read More »
SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:PADS
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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
Complaint The garage door hand transmitter cannot be initialized with the integrated garage door opener in the inside rearview mirror. Cause 1. Read More »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
