2020 Mercedes-Benz S450
TSBs (Technical Service Bulletins)
Technical Service Bulletins (TSBs) for the 2020 S450 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 #LI46.11-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 #LI46.15-P-063353
Complaint: Height adjustment of electric steering column adjustment jams in upper / lower adjustment position or it generates a cracking noise when exiting the upper /lower adjustment position (e.g. for Easy Entry function). Read More »
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TSB #NCU-2023050005
Mercedes-Benz AG (a??MBAGa??), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (a??MYa??) 2014-2020 S-Class (217 and 222 platform) vehicles, the incorrect pilot bushings may have been installed in the ... Read More »
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TSB #NCU-2023050005
Mercedes-Benz AG (a??MBAGa??), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (a??MYa??) 2014-2020 S-Class (217 and 222 platform) vehicles, the incorrect pilot bushings may have been installed in the ... 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-2023070011
Mercedes-Benz AG (a??MBAGa??), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (a??MYa??) 2020 S-Class (222 platform) vehicles, the engine electronics control unit software may not correspond with the ... 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 #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 #SC-2022070004
Mercedes-Benz AG ("MBAG"), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (a??MYa??) 2028-2021 S-Class, S-Class Coupe/Cabriolet (217 and 222 platforms) vehicles, the low pressure fuel line does not ... Read More »
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TSB #LI8860P073470
Fuel filler flap opens slowly/switch flashes/tank is bleeding instrument cluster warning Read More »
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TSB #LI8860P073470
Fuel filler flap opens slowly/switch flashes/tank is bleeding instrument cluster warning Read More »
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TSB #Launch NCU - 202
Mercedes-Benz AG (?MBAG?), the manufacturer of Mercedes-Benz, has determined that on certain Model Year (?MY?) 2020 S-Class (217 Platform), the transmission control unit software does not correspond to the current production specifications. Read More »
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TSB #LI27.50-P-071658
Harsh engagement when changing gear range from P to D or R Read More »
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TSB #LI27.00-P-060741
Shifting complaints and transmission fault codes in vehicles with transmission 725.0 Read More »
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TSB #LI27.60-P-071237
5 to 4 coasting downshift - shift quality concern with cold trans- mission oil on MODEL 217 or 222 in combination with ENGI- NE 278 and TRANSMISSION 722.9 without code 835/498 Read More »
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TSB #SC-2020080001
Replace automatic transmission 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 #NCU-2020060009
The software for the transmission control unit on the above model series vehicles transferred to you does not correspond to the current series production configuration. 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 #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 #LI82.95-P-076991
Mercedes me connect services inoperative (me-Call, Remote Status, etc.). Mercedes me services - activation not possible. Notes: - In the quick test, no fault code and no event code is stored in the RAMSES control unit (N112/2). 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-076799
The Mercedes me connect services cannot be activated. The remote status data does not update. Error in N112/9 - control unit for telematics services (HERMES). Read More »
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TSB #NCU-2023070011
Mercedes-Benz AG (a??MBAGa??), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (a??MYa??) 2020 S-Class (222 platform) vehicles, the engine electronics control unit software may not correspond with the ... 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-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 #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 #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 #LI46.15-P-063353
Complaint: Height adjustment of electric steering column adjustment jams in upper / lower adjustment position or it generates a cracking noise when exiting the upper /lower adjustment position (e.g. for Easy Entry function). 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 #LI8850P057071
Trunk lid closes too quickly. 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-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 #LI8370P0644803
High voltage battery warning 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 #Launch NCU - 202
Mercedes-Benz AG (?MBAG?), the manufacturer of Mercedes-Benz, has determined that on certain Model Year (?MY?) 2020 S-Class (217 Platform), the transmission control unit software does not correspond to the current production specifications. 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 #LI8270P055572
Mobile phone cotacts are not transferred completely. 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-064766
Lamp unit fogged or droplets forming. Due to the vent openings, the lamp unit is an "open system". This means that acidic gases, moisture, dirt and exhaust gases can penetrate it. This can result in deposits on the diffuser and lens. Read More »
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TSB #LI82.10-P-064766
Lamp unit fogged or droplets forming. Due to the vent openings, the lamp unit is an "open system". This means that acidic gases, moisture, dirt and exhaust gases can penetrate it. This can result in deposits on the diffuser and lens. Read More »
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TSB #LI83.30-P-071494
Air Conditioning Intermittently Does Not Cool 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 #LI32.22-P-072610
AIR BODY (AIRMATIC) display message. Vehicle level cannot be raised or lowered 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 #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 #LI91.10-P-065540
Complaint Creaking noise from side bolster when load applied to seat cushion of front seats. Cause Soiling to the replacement fabric of the seat cushion cover means that friction on the seat side finisher mountings generates a creaking ... Read More »
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TSB #LI46.15-P-063353
Complaint: Height adjustment of electric steering column adjustment jams in upper / lower adjustment position or it generates a cracking noise when exiting the upper /lower adjustment position (e.g. for Easy Entry function). 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 #LI82.85-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-076799
The Mercedes me connect services cannot be activated. The remote status data does not update. Error in N112/9 - control unit for telematics services (HERMES). 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 #LI82.10-P-064766
Lamp unit fogged or droplets forming. Due to the vent openings, the lamp unit is an "open system". This means that acidic gases, moisture, dirt and exhaust gases can penetrate it. This can result in deposits on the diffuser and lens. Read More »
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TSB #NCU-2020060009
The software for the transmission control unit on the above model series vehicles transferred to you does not correspond to the current series production configuration. 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 #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 #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-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 #LI8285P0633424
Navigation system permanently displays "Activating". Read More »
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TSB #LI8285P0633423
Navigation system permanently displays "Activating". Read More »
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TSB #LI82.95-P-076991
Mercedes me connect services inoperative (me-Call, Remote Status, etc.). Mercedes me services - activation not possible. Notes: - In the quick test, no fault code and no event code is stored in the RAMSES control unit (N112/2). Read More »
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TSB #LI82.95-P-076991
Mercedes me connect services inoperative (me-Call, Remote Status, etc.). Mercedes me services - activation not possible. Notes: - In the quick test, no fault code and no event code is stored in the RAMSES control unit (N112/2). Read More »
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TSB #SC-2023030009
Update Digital Operator's Manual and enclose printed Operator's Manual, replace if necessary Model 223 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 #LI1830P0597123
Gasket may settle causing a slight oil leak. Read More »