2020 Mercedes-Benz CLS450
TSBs (Technical Service Bulletins)
Technical Service Bulletins (TSBs) for the 2020 CLS450 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-071669
Complaint Loads induced at the steering wheel through pushing and pulling actions may cause creaking and cracking noises in the mechanical steering column. 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 #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. 1. Read More »
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TSB #LI46.15-P-071669
Cracking/Creaking Noises Coming From The Area Of The Mechanical Steering Column 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 #LI42.47-P-067502
If the customer brakes sharply from a speed of > 30mph, without ABS intervention, there is a single cracking noise from the area of the ESP hydraulic unit Read More »
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TSB #LI54.30-P-070482
The check engine indicator light in the instrument cluster may be illuminated with one of the following fault codes: P261029, P02FF85, or P02FF02 stored in the engine control unit (N3/10). 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 #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 #LI18.00-P-073137
Complaint Sporadic warning message in instrument cluster "Engine oil pressure stop switch off vehicle" (or similar) is shown in red on vehicles with low mileage. Cause Directional control valve may stick. Read More »
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TSB #SC- 202110017
The exhaust gas cleaning information label does not correspond to currently valid specifications. It is therefore possible that the emission classification given on the information label may not correspond to the certified classification. 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 #Launch NCU 20210
Mercedes-Benz AG (?MBAG?), the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY 2020 C-Class (205) and GLE-Class (167) vehicles, the mixing ratio of coolant to antifreeze may not meet production specifications. Read More »
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TSB #LI1830P0597123
Gasket may settle causing a slight oil leak. 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 #LI18.40-P-070746
Message in the Instrument Cluster "Refill 1L Oil at the Next Fuel Stop" Read More »
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TSB #LI18.40-P-070746
Message in the Instrument Cluster "Refill 1L Oil at the Next Fuel Stop" 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 #LI2700P073532
If TRANSMISSION 725.1 9G TRONIC FACELIFT exhibits any "shift quality" concerns, vared diagnosis procedures are available to you for selected vehicle model series with STAR3 architecture, Read More »
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TSB #LI54.30-P-070482
The check engine indicator light in the instrument cluster may be illuminated with one of the following fault codes: P261029, P02FF85, or P02FF02 stored in the engine control unit (N3/10). Read More »
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TSB #LI2700P0647671
Intial startup not possible after replacement of transmisson 725.0 or of electrohydraulic controller unit. 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 #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-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 #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 #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 #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 #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 #LI82.85-P-069961
Complaint The following complaints may be noted by the customer: a?? Upon selecting navigation, the central display may show the following message: "Map data does not match with your system. Read More »
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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 »
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TSB #LI68.05-P-060307
Complaint The range of the integrated garage door opener (GTO) is too short. Cause 1. Vehicles equipped with infrared windows and/or a heated windshield may suffer from complaints involving low transmission power. 2. Read More »
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TSB # LI82.85-P-06996
MBUX multimedia system: Map data does not match with your system/the navigation system cannot be activated Read More »
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TSB #LI54.10-P-06968
"Functional impairment of 48 V on-board electrical system " Read More »
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TSB #LI8285P073418
On vehicles with code 077 HERMES dummy module the following functions are restricted, unavailable. 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 #LI54.10-P-069698
Complaint: Various causes are possible. The faults listed in the various causes do not all have to be present at all times. Some of these complaints may overlap. 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 #LI54.10-P-069698
Functional impairment of 48 V on-board electrical system Read More »
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TSB #NCU-2020110017
Mercedes-Benz AG (?MBAG?), the manufacturer of Mercedes-Benz, has determined that on certain Model Year (?MY?) 2019-2020 CLS-Class, E-Class, and GLE-Class (167, 213, 238, and 257 Platform) vehicles, the software for the on-board ... Read More »
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TSB #LI54.30-P-072145
NTG5.5: Incorrect time shown on instrument cluster, COMAND display, and analog clock Read More »
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TSB #LI54.10-P-069698
Functional impairment of 48 V on-board electrical system Read More »
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TSB #LI54.10-P-071499
Xentry Battery Tester results disagree with workshop assessment 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 #LI54.30-P-072145
NTG5.5: Incorrect time shown on instrument cluster, COMAND display, and analog clock Read More »
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TSB #LI54.30-P-070482
The check engine indicator light in the instrument cluster may be illuminated with one of the following fault codes: P261029, P02FF85, or P02FF02 stored in the engine control unit (N3/10). 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 #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. 1. Read More »
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TSB #LI18.40-P-070746
Message in the Instrument Cluster "Refill 1L Oil at the Next Fuel Stop" Read More »
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TSB #LI54.30-P-070482
The check engine indicator light in the instrument cluster may be illuminated with one of the following fault codes: P261029, P02FF85, or P02FF02 stored in the engine control unit (N3/10). 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 #LI54.10-P-071499
Xentry Battery Tester results disagree with workshop assessment 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 #LI82.10-P-063239
Headlamps fogged Read More »
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TSB #LI83.30-P-071494
Air Conditioning Intermittently Does Not Cool Read More »
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TSB #LI67.30-P-071373
Wind noises in area of mirror triangle at front doors as of 120 km/h (75 MPH). Possible noise due to minimal thickness of sealing rail. Replace sealing railing and adjust side windows. Read More »
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TSB #LI83.30-P-071494
Air Conditioning Intermittently Does Not Cool 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 #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 #LI67.30-P-071373
Wind noises in area of mirror triangle at front doors as of 120 km/h (75 MPH). Possible noise due to minimal thickness of sealing rail. Replace sealing railing and adjust side windows. Read More »
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TSB #LI82.20-P-070189
Retrofitted front door exit lamps with logo projection flicker 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 #LI80.40-P-075378
Complaint The trunk lid is not latching into the closed position with the help of the trunk lid power closing function after the electric closing process. 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 #LI80.40-P-075378
Complaint The trunk lid is not latching into the closed position with the help of the trunk lid power closing function after the electric closing process. 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 #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 #LI91.25-P-071314
When the dynamic seat is activated, the tensioning straps on the seat backrest frame may creak. The tensioning straps are in contact with the seat backrest frame and as a result, a creaking noise may occur. Read More »
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TSB #LI42.47-P-067502
If the customer brakes sharply from a speed of > 30mph, without ABS intervention, there is a single cracking noise from the area of the ESP hydraulic unit 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 #LI82.20-P-073063
Complaint The touchpad dimming function does not work and the search lighting is either at maximum brightness or fully off (dependent upon dimming signal). Read More »
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TSB #LI8220P073063
Touch pad: Search lighting does not dim or does not turn on. Read More »
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TSB #LI82.20-P-070189
Retrofitted front door exit lamps with logo projection flicker 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-071453
Incorrect time and/or instrument cluster message "SOS, service not activated" and/or Mercedes Me connect services 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 #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. 1. 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 #LI18.00-P-073137
Complaint Sporadic warning message in instrument cluster "Engine oil pressure stop switch off vehicle" (or similar) is shown in red on vehicles with low mileage. Cause Directional control valve may stick. 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 #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 #LI67.30-P-071373
Wind noises in area of mirror triangle at front doors as of 120 km/h (75 MPH). Possible noise due to minimal thickness of sealing rail. Replace sealing railing and adjust side windows. Read More »
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TSB #LI54.30-P-070482
The check engine indicator light in the instrument cluster may be illuminated with one of the following fault codes: P261029, P02FF85, or P02FF02 stored in the engine control unit (N3/10). Read More »
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TSB #LI91.25-P-071314
When the dynamic seat is activated, the tensioning straps on the seat backrest frame may creak. The tensioning straps are in contact with the seat backrest frame and as a result, a creaking noise may occur. Read More »
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TSB #LI82.85-P-064727
NTG5.5, NTG6: Vehicle positioning inaccurate / implausible, route guidance not possible 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 #LI8270P071024
The mobile phone address book may not be transferred completely to the multimedia system COMAND, Audio 20, or MBUX. 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 #LI8200P073331
Intermittently after bus sleep the lower control panel LCP and upper control panel UCP may be panel UCP may be inoperable. 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 #LI8285P073387Ver
The customer may note that the Dashcam feature is inoperable with one of the following complaints. 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 #LI82.70-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 #LI82.85-P-068846
"Free browsing, Internet access via Wi-Fi hotspot and Internet radio nonfunctional" Read More »
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TSB # LI82.85-P-06996
MBUX multimedia system: Map data does not match with your system/the navigation system cannot be activated Read More »
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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 »
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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 #P-SC-2020020001
Information Label on Tire Sealant Read More »
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TSB #NCU-2020060021
The operator's manual for the above vehicles does not comply with current specifications. "Daimler AG" may be documented as the manufacturer in the operator's manual. The new manufacturer is "Mercedes-Benz AG. 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 #LI91.25-P-071314
When the dynamic seat is activated, the tensioning straps on the seat backrest frame may creak. The tensioning straps are in contact with the seat backrest frame and as a result, a creaking noise may occur. Read More »
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TSB #LI83.30-P-071494
Air Conditioning Intermittently Does Not Cool 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 #LI2700P0647671
Intial startup not possible after replacement of transmisson 725.0 or of electrohydraulic controller unit. Read More »
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TSB #LI1830P0597123
Gasket may settle causing a slight oil leak. Read More »