2020 Mercedes-Benz GLS450
TSBs (Technical Service Bulletins)
Technical Service Bulletins (TSBs) for the 2020 GLS450 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-077391
A knocking noise can be heard from the area of the steering gear or steering column tube, and a "cracking" sensation can also be felt at the steering wheel. 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 #LI46.15-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 #LI32.50-P-072071
1. Noises in recovery mode with the vehicle stationary 2. Noises when driving in a straight line on rough terrain 3. Noises when cornering and performing alternate steering movements 4. Read More »
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TSB #LI32.50-P-074719
Cause Communication fault between electrohydraulic suspension component parts through out-of-date software (application software and bootloader software). Read More »
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TSB #SC-2022020010
Perform SCN coding in the active suspension and damping system control unit Read More »
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TSB #NCU-2021120012
Mercedes-Benz AG (a??MBAGa??), the manufacturer of Mercedes-Benz, has determined that on certain MY 2020-2021 GLE-Class and GLS-Class (167 platform) vehicles, the electrohydraulic suspension may not meet current specifications. Read More »
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TSB #LI32.22-P-073368
Complaint AIRMATIC fault message in instrument cluster. Cause An internal control unit fault led to the specified fault codes. Remedy Replacement of CAIRS unit 51/8 does not remedy the problem. Perform AIRMATIC software update on R24. Read More »
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TSB #LI32.50-P-072071
1. Noises in recovery mode with the vehicle stationary 2. Noises when driving in a straight line on rough terrain 3. Noises when cornering and performing alternate steering movements 4. Read More »
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TSB #LI32.40-P-072070
Warning display message for eSuspension, various causes and remedies listed. Read More »
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TSB #NCU-2020090002
Mercedes-Benz AG (?MBAG?), the manufacturer of Mercedes-Benz, has determined that on certain Model Year (?MY?) 2020 GLS-Class vehicles (X167 platform), the stop plate on the front axle suspension struts may not have been installed ... Read More »
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TSB #LI54.30-P-070482
Check engine indicator light active and fault code P261029/P02FF85/P02FF02 stored in engine control unit Read More »
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TSB #LI47.20-P-071172
Check engine light active and FC P146364 Temp. and pressure sensor B4/7 is stored in Engine control unit and Fuel pump control unit. Software parameter in Fuel pump control unit. Read More »
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TSB #NCU-2022100005
Mercedes-Benz AG (a??MBAGa??), the manufacturer of Mercedes-Benz vehicles, has determined that the affected vehicles may not meet current On Board Diagnostics (a??OBDa??) emissions specifications. 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 #LI1800P073137
Sporadic warning message in instrument cluster "Engine oil pressure stop switch off vehicle"" or similar is shown in red on vehicles with low mileage. Read More »
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TSB #LI0702P0547173
Ticking or pulsing noise from high-pressure pump and/or fuel injectors. Read More »
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TSB #LI1830P0597123
Gasket may settle causing a slight oil leak. Read More »
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TSB #LI2000P073432
Yellow "Coolant" message in instrument cluster. 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 #LI20.20-P-073274
Coolant warning in instrument cluster - Leak in coolant line Read More »
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TSB #SC-2021070003
Mercedes-Benz AG ("MBAG"), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (a??MYa??) 2020-2021 CLA-Class (118 platform), GLE/GLS-Class (167 platform) vehicles, the Vehicle Emission Control ... Read More »
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TSB #LI47.20-P-071172
Check engine light active and FC P146364 Temp. and pressure sensor B4/7 is stored in Engine control unit and Fuel pump control unit. Software parameter in Fuel pump control unit. Read More »
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TSB #EW - FSCM SW
IMPORTANT EMISSION EXTENDED WARRANTY INFORMATION 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 ("MBUSA") is extending the ... Read More »
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TSB #LI54.10-P-069698
Complaint This LI does Not apply to 223 or 206 which use a different generation of 48V systems. Please follow the relevant guided tests for the 223 and 206. For 223 with fault code B1FCB97 follow LI54.10-P-073164. Read More »
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TSB #LI54.10-P-069698
Complaint This LI does Not apply to 223 or 206 which use a different generation of 48V systems. Please follow the relevant guided tests for the 223 and 206. For 223 with fault code B1FCB97 follow LI54.10-P-073164. Read More »
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TSB #SC-2022020009
Replace bolts for centering flange on integrated starter-alternator Read More »
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TSB #SC-2020080001
Replace automatic transmission Read More »
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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 »
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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 #LI47.20-P-071172
Check engine light active and FC P146364 Temp. and pressure sensor B4/7 is stored in Engine control unit and Fuel pump control unit. Software parameter in Fuel pump control unit. Read More »
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TSB #EW - FSCM SW
IMPORTANT EMISSION EXTENDED WARRANTY INFORMATION 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 ("MBUSA") is extending the ... 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 #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 »
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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 #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 #NCU-2022100005
Mercedes-Benz AG (a??MBAGa??), the manufacturer of Mercedes-Benz vehicles, has determined that the affected vehicles may not meet current On Board Diagnostics (a??OBDa??) emissions specifications. 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 #LI54.10-P-069698
Complaint This LI does Not apply to 223 or 206 which use a different generation of 48V systems. Please follow the relevant guided tests for the 223 and 206. For 223 with fault code B1FCB97 follow LI54.10-P-073164. Read More »
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TSB #LI54.10-P-069698
Complaint This LI does Not apply to 223 or 206 which use a different generation of 48V systems. Please follow the relevant guided tests for the 223 and 206. For 223 with fault code B1FCB97 follow LI54.10-P-073164. 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 #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 #LI91.12-P-073742
Complaint a?? Seats cannot be adjusted a?? Seats cannot be folded a?? Seats in the 2nd seat row cannot be locked or unlocked a?? Normalization cannot be performed in its entirety using XENTRY Cause Under analysis Remedy *Make sure ... Read More »
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TSB #LI82.95-P-074415
Complaint Intermittently, engine switches off within a few seconds after being started via the Remote Engine Start (RES) command from the Mercedes me app. Read More »
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TSB #LI08.00-P-072749
For plug in hybrid and electric variants: Complaints about the electric range Read More »
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TSB #LI32.34-P-072600
Suspension fault message in instrument cluster to drive at max. 80 km/h Read More »
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TSB #NCU-2020050010
The software in the NTG5 control unit may not correspond with our internal specifications in the vehicles of the above-mentioned model series transferred to you. Read More »
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TSB #LI8330P0646722
Engine fan runs continuously, a/c inoperable or, engine light illuminates sporadically. Read More »
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TSB #LI8330P0646721
Engine fan runs continuously, a/c inoperable or, engine light illuminates sporadically. Read More »
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TSB #SC-2022020009
Replace bolts for centering flange on integrated starter-alternator 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 #LI1800P073137
Sporadic warning message in instrument cluster "Engine oil pressure stop switch off vehicle"" or similar is shown in red on vehicles with low mileage. Read More »
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TSB #LI2000P073432
Yellow "Coolant" message in instrument cluster. 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-2022020010
Perform SCN coding in the active suspension and damping system control unit Read More »
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TSB #LI32.22-P-073368
Complaint AIRMATIC fault message in instrument cluster. Cause An internal control unit fault led to the specified fault codes. Remedy Replacement of CAIRS unit 51/8 does not remedy the problem. Perform AIRMATIC software update on R24. 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 #LI82.10-P-070615
167 GLS headlight low beam fault Read More »
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TSB #LI82.10-P-070615
167 GLS headlight low beam fault Read More »
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TSB #LI83.30-P-077763
Customer concern of Air Conditioning not cooling. Possible refrigerant leak at the evaporator. Perform the following measures and open a TIPS case labeled "167 Evaporator Suspected of Leaking" In the case, please include the ... Read More »
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TSB #LI72.00-P-072603
Excessive resistance of door side windows when being raised/lowered, cracking and/or squeaking noises. Sealing lip of inner sealing rail, see Picture 1 and Picture 2, pos. 90, folds down while side windows are being lowered (opened). Read More »
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TSB #LI72.00-P-072603
Excessive resistance of door side windows when being raised/lowered, cracking and/or squeaking noises. Sealing lip of inner sealing rail, see Picture 1 and Picture 2, pos. 90, folds down while side windows are being lowered (opened). Read More »
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TSB #LI7200P072603
Excessive resistance of door side windows when being raised/lowered, cracking and squeaking noises. Read More »
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TSB #LI77.21-P-072113
Creaking noise from fixed glass section of panoramic roof in area of rear passenger compartment grab handles Read More »
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TSB #LI20.20-P-073274
Coolant warning in instrument cluster - Leak in coolant line Read More »
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TSB #Launch NCU 20210
Mercedes-Benz AG (?MBAG?), the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY 2020-2021 GLE-Class and GLS-Class (167 Platform) vehicles, the supplementantal restraint system ("SRS") control unit software does ... Read More »
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TSB #LI68.10-P-075301
Complaint Metallic noises from area of instrument panel Cause Due to a possible drop in torque at the screw connection of the NVH struts in the engine compartment (see picture in the attachment), noises may be perceived in the area of ... Read More »
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TSB #LI91.18-P-071629
The seat cushion cover on the front seat cracks when side bolster is equipped with "ARTICO man-made leather upholstery". Read More »
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TSB #LI7200P072603
Excessive resistance of door side windows when being raised/lowered, cracking and squeaking noises. Read More »
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TSB #LI6320P073629
Model series 167 noise on B/C/D pillars. 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 #P-SC-2020020001
Information Label on Tire Sealant Read More »
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TSB #SC-2022070010
Mercedes-Benz AG (a??MBAGa??), the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY 2020-2021 GLE-Class and GLS-Class (167 platform) vehicles equipped with Michelin-branded tires, the maximum tire pressure shown ... Read More »
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TSB #NCU-2020110009
Mercedes-Benz AG ("MBAG"), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year ("MY") 2020-2021 GLE-Class (167 platform) and GLS-Class (X167 platform) vehicles equipped with Michelin Primacy Tour A/S ... 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 #LI91.12-P-073742
Complaint a?? Seats cannot be adjusted a?? Seats cannot be folded a?? Seats in the 2nd seat row cannot be locked or unlocked a?? Normalization cannot be performed in its entirety using XENTRY Cause Under analysis Remedy *Make sure ... Read More »
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TSB #LI91.18-P-071629
The seat cushion cover on the front seat cracks when side bolster is equipped with "ARTICO man-made leather upholstery". Read More »
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TSB #LI91.12-P-072068
The backrests of the second seat row (60% and 40% side) are offset relative to each other. Read More »
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TSB #LI6320P073629
Model series 167 noise on B/C/D pillars. Read More »
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TSB #LI54.65-P-072662
Unmotivated park sensor warnings without any objects in the vicinity Read More »
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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 »
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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 #SC-2022070010
Mercedes-Benz AG (a??MBAGa??), the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY 2020-2021 GLE-Class and GLS-Class (167 platform) vehicles equipped with Michelin-branded tires, the maximum tire pressure shown ... Read More »
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TSB #NCU-2021120012
Mercedes-Benz AG (a??MBAGa??), the manufacturer of Mercedes-Benz, has determined that on certain MY 2020-2021 GLE-Class and GLS-Class (167 platform) vehicles, the electrohydraulic suspension may not meet current specifications. Read More »
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TSB #LI20.20-P-073274
Coolant warning in instrument cluster - Leak in coolant line Read More »
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TSB #LI82.85-P-068846
"Free browsing, Internet access via Wi-Fi hotspot and Internet radio nonfunctional" Read More »
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TSB #LI68.20-P-070037
Armrest In Center Console (Front) Only Opens On One Side Or Not At All - Model Series 167 Read More »
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TSB #LI32.50-P-072071
1. Noises in recovery mode with the vehicle stationary 2. Noises when driving in a straight line on rough terrain 3. Noises when cornering and performing alternate steering movements 4. Read More »
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TSB #LI32.40-P-072070
Warning display message for eSuspension, various causes and remedies listed. Read More »
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TSB #NCU-2020090002
Mercedes-Benz AG (?MBAG?), the manufacturer of Mercedes-Benz, has determined that on certain Model Year (?MY?) 2020 GLS-Class vehicles (X167 platform), the stop plate on the front axle suspension struts may not have been installed ... Read More »
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TSB #LI72.20-P-070556
EASY-Pack liftgate does not fully open Read More »
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TSB #LI82.70-P-071024
The mobile phone address book is not transferred completely to the multimedia system (COMAND or MBUX). In some cases, the call list shows just the telephone numbers but no names. 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 #LI82.85-P-068846
"Free browsing, Internet access via Wi-Fi hotspot and Internet radio nonfunctional" 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 #NCU-2020110009
Mercedes-Benz AG ("MBAG"), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year ("MY") 2020-2021 GLE-Class (167 platform) and GLS-Class (X167 platform) vehicles equipped with Michelin Primacy Tour A/S ... Read More »
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TSB #P-SC-2020020001
Information Label on Tire Sealant Read More »
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TSB #LI82.85-P-068846
"Free browsing, Internet access via Wi-Fi hotspot and Internet radio nonfunctional" 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 #NCU-2020090002
Mercedes-Benz AG (?MBAG?), the manufacturer of Mercedes-Benz, has determined that on certain Model Year (?MY?) 2020 GLS-Class vehicles (X167 platform), the stop plate on the front axle suspension struts may not have been installed ... 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 #LI6320P073629
Model series 167 noise on B/C/D pillars. Read More »
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TSB #LI1830P0597123
Gasket may settle causing a slight oil leak. Read More »