2021 Mercedes-Benz GLB250
TSBs (Technical Service Bulletins)
Technical Service Bulletins (TSBs) for the 2021 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.
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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 »
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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 »
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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 »
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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 »
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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 »
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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 »
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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 »
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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 »
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TSB #LI46.10-P-072751
Complaint: When removing the steering column switch module, a fracture may occur in the bridge of the locking hole on the steering column switch module cover, at the join with the bellows extension. Read More »
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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 »
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TSB #LI32.20-P-072611
Noise from the front axle when steering while stationary or when steering at low speeds Read More »
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TSB #LI40.10-P-072604
Slight grinding noise when steering is turned to full lock Read More »
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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 »
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TSB #LI42.10-P-075968
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 »
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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 »
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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 »
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TSB #LI09.00-P-074093
"MY15+ M278 and M157 Equipped Vehicles with Fault Code ""P023400 a?? Boost Pressure is Too High"" " Read More »
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TSB #LI1830P0597123
Gasket may settle causing a slight oil leak. Read More »
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TSB #LI20.10-P-072886
with engine M17x the ME Control Unit: "The Coolant Temperature is Below the Specified Temperature" Read More »
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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 »
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TSB #NCU-2022110007
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 »
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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 »
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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 »
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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 »
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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 »
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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 »
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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 »
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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 »
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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 »
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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 »
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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 »
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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 »
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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 »
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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 »
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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 »
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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 »
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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 »
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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 »
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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 »
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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 »
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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 »
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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 »
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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 »
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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 »
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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 »
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TSB #LI46.10-P-072751
Complaint: When removing the steering column switch module, a fracture may occur in the bridge of the locking hole on the steering column switch module cover, at the join with the bellows extension. Read More »
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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 »
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TSB #LI82.85-P-071394
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 »
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TSB #LI82.85-P-069381
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 »
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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 »
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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 »
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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 »
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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 »
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TSB #SC-2022010001
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 »
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TSB #LI20.10-P-072886
with engine M17x the ME Control Unit: "The Coolant Temperature is Below the Specified Temperature" Read More »
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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 »
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TSB #LI72.00-P-076031
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 »
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TSB #LI83.10-P-075602
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 »
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TSB #LI54.71-P-072473
Complaint BR X247 only Code 233 Several messages of driver assistant system related - "Active Brake Assist temporarily not available, see manual"(Yellow) - "Active Blind Spot Assist inoperative" (Yellow) - "Active Lane Change Assist ... Read More »
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TSB #LI54.71-P-072473
Complaint BR X247 only Code 233 Several messages of driver assistant system related - "Active Brake Assist temporarily not available, see manual"(Yellow) - "Active Blind Spot Assist inoperative" (Yellow) - "Active Lane Change Assist ... Read More »
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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 »
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TSB #NCU- B-Pillar ID
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 »
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TSB #LI72.00-P-076031
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 »
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TSB #LI72.00-P-075656
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 »
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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 »
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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 »
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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 »
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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 »
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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 »
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TSB #LI54.71-P-072473
X247 code 233 - Blind Spot Assist inoperative (fault message in IC) - Fault code C110178 due Positioning of rear left radar sensor Read More »
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TSB #LI54.71-P-072473
Complaint BR X247 only Code 233 Several messages of driver assistant system related - "Active Brake Assist temporarily not available, see manual"(Yellow) - "Active Blind Spot Assist inoperative" (Yellow) - "Active Lane Change Assist ... Read More »
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TSB #LI82.85-P-069381
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 »
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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 »
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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 »
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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 »
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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 »
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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 »
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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 »
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TSB #LI82.85-P-069381
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 »
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TSB #LI8285P073387Ver
The customer may note that the Dashcam feature is inoperable with one of the following complaints. Read More »
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TSB #LI8270P073025
Insufficient charging or no wireless charging with iPhone 12. Read More »
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TSB #LI8285P073387Ver
The customer may note that the Dashcam feature is inoperable with one of the following complaints: Read More »
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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 »
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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 »
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TSB #LI82.85-P-072730
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 »
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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 »
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TSB #NCU2021080002
NEW SERVICE CAMPAIGN LAUNCH INFORMATION. Read More »
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TSB #NCU2021070013
NEW SERVICE CAMPAIGN LAUNCH INFORMATION. Read More »
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TSB #NCU2021070018
NEW SERVICE CAMPAIGN LAUNCH INFORMATION. Read More »
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TSB #NCU-2021030010
Launch NCU - 2021030010 MY20-21 Various Add Supplementary Booklet to Printed Operators Manual Read More »
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TSB #LI20.10-P-072886
with engine M17x the ME Control Unit: "The Coolant Temperature is Below the Specified Temperature" Read More »
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TSB #LI82.85-P-071394
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 »
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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 »
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TSB #LI1830P0597123
Gasket may settle causing a slight oil leak. Read More »