2021 Mercedes-Benz GLS450 service bulletins & manufacturer communications
249 manufacturer communications are on file with NHTSA for the 2021 Mercedes-Benz GLS450. TSBs are repair guidance for dealers — they are not recalls, and repairs are not automatically free.
Technical service bulletin 246Warranty extension 2Service campaign 1
- This NCU replaces the prior NCU issued on May 15, 2025, and contains additional MY 2023 and MY 2024 vehicles which are highlighted below. In our continuing efforts to ensure the pr…EW - DMTL · Warranty extension · Fuel/propulsion System · issued Jul 31, 2026
- Complaint CEL light on with no drivability concerns. Cause Signal timing error. Remedy 167, 465: SW has been released. Update the FSAM to the latest SW version. 290, 118, 243, 247:…LI54.21-P-080326 · Technical service bulletin · Electrical System · issued Jul 24, 2026
- Complaint Noise from front end attributable to steering gear. Cause During diagnostics of a front end noise, workshop is under the impression the noise is coming from the steering …LI46.00-P-079786 · Technical service bulletin · Steering · issued Jul 22, 2026
- Complaint Hand detection system – malfunction / vehicles with code 266 Fault message in instrument cluster: "Active Emergency Stop Assist not available" "Active Lane Keeping Assist…LI46.10-P-078012 · Technical service bulletin · Electrical System · issued Jul 17, 2026
- Single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end). The noise is heard once in each instance when changing direction of trave…LI35.30-P-058566 · Technical service bulletin · Power Train · issued Jul 14, 2026
- Complaint Traffic sign symbol for "Traffic Sign Assist" is blinking in instrument cluster without obvious cause usually with one of the following scenarios: • Flashing without a sp…LI54.71-P-079104 · Technical service bulletin · Electrical System · issued Jul 9, 2026
- Complaint Radio station cover art does not refresh when switching stations. The UI continues to show the old station’s artwork instead of updating to the new one. Cause When a new …LI82.60-P-080383 · Technical service bulletin · Electrical System · issued Jul 8, 2026
- Dear Mercedes-Benz USA Dealers, The part numbers listed in the chart below should no longer be installed, and any existing stock must be returned to your facing PDC. The deadline f…PSL-NCU Return Parts 7/3 · Technical service bulletin · Service Brakes · issued Jul 3, 2026
- Complaint Throbbing/humming sound around 60mph. Howling in overdrive mode around 5th gear. Models 167.1/3 and 167.9 as of 03/2022 (except 167.987) occurs between 40-50mph Model 167…LI35.25-P-077385 · Technical service bulletin · Structure · issued Jul 2, 2026
- Complaint 1. Maybach Night Series image not being displayed in Head Unit, Instrument Cluster, CCR and RSU displays 2. Car line picture mismatch between Instrument Cluster and Head …LI82.60-P-080702 · Technical service bulletin · Electrical System · issued Jun 15, 2026
- Complaint Rattle or clunking noise from underneath the vehicle when driving over uneven/bumpy surfaces. Cause Internal tolerances of the electric rollbar. Remedy 1. Confirm front o…LI32.34-P-080645 · Technical service bulletin · Suspension · issued Jun 12, 2026
- Complaint Service code B1 displayed in the customer menu does not match the workshop code displayed in the workshop menu, e.g., 505 or 550A, which includes a service A. Cause The r…LI00.20-P-080703 · Technical service bulletin · Electrical System · issued Jun 12, 2026
- Complaint 1. "Perform vehicle handover" in the workshop menu to start the maintenance computer for service A/B cannot be carried out. 2. Service confirmation is not possible becaus…LI00.20-P-077615 · Technical service bulletin · Electrical System · issued Jun 12, 2026
- Dear Mercedes-Benz USA Dealers, The part numbers listed in the chart below should no longer be installed, and any existing stock must be returned to your facing PDC. The deadline f…PSL-NCU Return Parts 5/29 · Technical service bulletin · Service Brakes · issued May 30, 2026
- Complaint 1. "Perform vehicle handover" in the workshop menu to start the maintenance computer for service A/B cannot be carried out. 2. Service confirmation is not possible becaus…LI00.20-P-077615 · Technical service bulletin · Electrical System · issued May 29, 2026
- Complaint After successful commissioning of the HERMES control unit (N112/9) with XENTRY Diagnosis DVD 03/2026, the message "SOS - service not activated" appears on the instrument …LI82.85-P-080507 · Technical service bulletin · Electrical System · issued May 26, 2026
- Dear Mercedes-Benz USA Dealers, The part numbers listed in the chart below should no longer be installed, and any existing stock must be returned to your facing PDC. The deadline f…PSL-NCU Return Parts 5/22 · Technical service bulletin · Structure · issued May 22, 2026
- 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 steerin…LI46.15-P-070510 · Technical service bulletin · Steering · issued May 22, 2026
- The part numbers listed in the chart below should no longer be installed, and any existing stock must be returned to your facing PDC. The deadline for all dealer returns is no late…PSL-NCU Return Parts 5/15 · Technical service bulletin · Suspension · issued May 15, 2026
- Complaint Despite the IC message shown in these complaints, the primary low-beam function is not restricted. Complaint No. 1: Sporadic "Headlamp Inoperative" message in the instrum…LI82.10-P-080467 · Technical service bulletin · Electrical System · issued May 13, 2026
- Complaint 1. General Diagnostic Tips 2. One or More PARK Sensor Activations 3. Red Ring Around Vehicle 4. "Active Parking and Parking Assist Inoperative" on Instrument Cluster 5. C…LI54.65-P-080132 · Technical service bulletin · Electrical System · issued May 12, 2026
- Complaint Creaking noise, in irregular sequence when driving slowly in combination with slight steering movements and/or Creaking/crackling noises from the area of the wheel bearin…LI33.20-P-078406 · Technical service bulletin · Suspension · issued May 12, 2026
- Cause At present, there are no known noise problems with the steering column. Remedy Check surrounding area of the steering column for possible noises. • Instrument panel support •…LI46.15-P-070510 · Technical service bulletin · Steering · issued May 8, 2026
- Dear Mercedes-Benz USA Dealers, The part numbers listed in the chart below should no longer be installed, and any existing stock must be returned to your facing PDC. The deadline f…PSL-NCU Return Parts 5/08 · Technical service bulletin · Air Bags · issued May 8, 2026
- Complaint Head-up display flickering in BR167. Cause Software A 40/12 - Head-up display and N133/1 - Instrument cluster (IC). Remedy Please do not replace any parts The following s…LI54.30-P-080421 · Technical service bulletin · Electrical System · issued May 4, 2026
- Complaint The intent of this document is to provide workshops with helpful technical reference language. • Commonly used acronyms in LI's and TIPS cases. • Control unit names, numb…LI00.01-P-078887 · Technical service bulletin · Unknown / Other · issued Apr 24, 2026
- Complaint There may be a cosmetic fault in the projection of the logo projector of the outside mirror (left/right). Cause Delamination of film on carrier plate. Remedy Additional r…LI88.70-P-079818 · Technical service bulletin · Unknown / Other · issued Apr 21, 2026
- Complaint Head-up display flickers Cause Software A 40/12 - Head-up display and N133/1 - Instrument cluster (IC). Remedy Please do not replace any parts. Step1: Please add SA code …LI54.30-P-080421 · Technical service bulletin · Electrical System · issued Apr 17, 2026
- Complaint Creaking noise, in irregular sequence when driving slowly in combination with slight steering movements and/or Creaking/crackling noises from the area of the wheel bearin…LI33.20-P-078406 · Technical service bulletin · Suspension · issued Apr 17, 2026
- Complaint Headlamp, front fog lamp leaky or fogged. Cause Fogging of the headlamps is a natural phenomenon, which can occur under certain climatic conditions. It does not lead to a…LI82.10-P-078301 · Technical service bulletin · Exterior Lighting · issued Apr 16, 2026
- Complaint Head-up display flickers Cause Software A 40/12 - Head-up display and N133/1 - Instrument cluster (IC). Remedy Please do not replace any parts. Step1: Please add SA code …LI54.30-P-080421 · Technical service bulletin · Electrical System · issued Apr 10, 2026
- Complaint Tailgate opens unintentionally. Cause Accidental or unnoticed activation of the button to open the tailgate on the vehicle key. EXAMPLE: when stored in trouser pocket, ha…LI72.20-P-075746 · Technical service bulletin · Electrical System · issued Apr 2, 2026
- Complaint Traffic sign symbol for "Traffic Sign Assist" is blinking in instrument cluster without obvious cause usually with one of the following scenarios: • Flashing without a sp…LI54.71-P-079104 · Technical service bulletin · Electrical System · issued Apr 2, 2026
- Complaint Approx. A 5–10 cm wide unwiped strip remains in the area of the wiper blade attachment during the downward movement of the wiper on the driver's side or front passenger s…LI82.30-P-078932 · Technical service bulletin · Visibility/wiper · issued Apr 2, 2026
- Complaint Radio station cover art does not refresh when switching stations. The UI continues to show the old station’s artwork instead of updating to the new one. Cause When a new …LI82.60-P-080383 · Technical service bulletin · Electrical System · issued Apr 2, 2026
- Complaint The intent of this document is to provide workshops with helpful technical reference language. • Commonly used acronyms in LI's and TIPS cases. • Control unit names, numb…LI00.01-P-078887 · Technical service bulletin · Unknown / Other · issued Mar 25, 2026
- Complaint Radio station cover art does not refresh when switching stations. The UI continues to show the old station’s artwork instead of updating to the new one. Cause Root cause …LI82.60-P-080383 · Technical service bulletin · Electrical System · issued Mar 25, 2026
- Complaint The vehicle's position on the map is displayed far away from its actual position, e.g. the vehicle is displayed as being in the middle of the ocean. Note: No relevant DTC…LI82.85-P-078722 · Technical service bulletin · Electrical System · issued Mar 11, 2026
- Complaint 1. General Diagnostic Tips 2. One or More PARK Sensor Activations 3. Red Ring Around Vehicle 4. "Active Parking and Parking Assist Inoperative" on Instrument Cluster 5. C…LI54.65-P-080132 · Technical service bulletin · Electrical System · issued Mar 9, 2026
- Complaint Headlamp, front fog lamp leaky or fogged Cause Fogging of the headlamps is a natural phenomenon, which can occur under certain climatic conditions. It does not lead to an…LI82.10-P-078301 · Technical service bulletin · Exterior Lighting · issued Mar 9, 2026
- Complaint Yellow information message in driver display (instrument cluster): "Switch on motor to charge the 12V battery" Cause The state of charge (SOC) of the 12V battery has drop…LI54.10-P-073164 · Technical service bulletin · Electrical System · issued Mar 4, 2026
- Complaint When coming to a stop or at slow speeds, brakes produce light squealing noise. Cause Optimized brake pads may produce some noise. Remedy If the brake pads have not been e…LI42.10-P-080253 · Technical service bulletin · Service Brakes · issued Mar 3, 2026
- 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 steerin…LI46.15-P-070510 · Technical service bulletin · Steering · issued Mar 2, 2026
- Complaint Traffic sign symbol for "Traffic Sign Assist" is blinking in instrument cluster without obvious cause usually with one of the following scenarios: • Flashing without a sp…LI54.71-P-079104 · Technical service bulletin · Electrical System · issued Feb 28, 2026
- Complaint 1. General Diagnostic Tips 2. One or More PARK Sensor Activations 3. Red Ring Around Vehicle 4. "Active Parking and Parking Assist Inoperative" on Instrument Cluster 5. C…LI54.65-P-080132 · Technical service bulletin · Electrical System · issued Feb 28, 2026
- Complaint Customer concern of Air Conditioning not cooling. *NOTE - Use of tracer DYE for leak checks is not approved. Only approved leak check procedures as per WIS are approved. …LI83.30-P-077763 · Technical service bulletin · Visibility/wiper · issued Feb 28, 2026
- 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…LI54.10-P-069698 · Technical service bulletin · Electrical System · issued Feb 27, 2026
- 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, handba…LI72.20-P-075746 · Technical service bulletin · Electrical System · issued Feb 25, 2026
- Complaint Headlamps leaking or fogged Cause The fogging of the headlamp is a natural phenomenon which can occur under certain climatic conditions. In contrast to a leaky headlamp, …LI82.10-P-078307 · Technical service bulletin · Exterior Lighting · issued Feb 25, 2026
- Complaint Headlamp, front fog lamp leaky or fogged Cause Fogging of the headlamps is a natural phenomenon, which can occur under certain climatic conditions. It does not lead to an…LI82.10-P-078301 · Technical service bulletin · Exterior Lighting · issued Feb 24, 2026
- Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain subject vehicles, the engine control unit software does not correspond to current produ…NCU - 2024090007 · Service campaign · Engine · issued Feb 14, 2026
- Complaint Check engine light on with the following fault is current in the VGS Control Unit: P084300 Oil pressure sensor 'A' has a short circuit to positive stored in VGS control u…LI27.19-P-080219 · Technical service bulletin · Power Train · issued Feb 13, 2026
- Complaint 1. General Diagnostic Tips 2. One or More PARK Sensor Activations 3. Red Ring Around Vehicle 4. "Active Parking and Parking Assist Inoperative" on Instrument Cluster 5. C…LI54.65-P-080132 · Technical service bulletin · Electrical System · issued Feb 13, 2026
- Complaint Noise from front end attributable to steering gear. Cause During diagnostics of a front end noise, workshop is under the impression the noise is coming from the steering …LI46.00-P-079786 · Technical service bulletin · Steering · issued Feb 11, 2026
- Complaint Head-up display permanently or sporadically unavailable - with warning message in driver display (see attachment) Head-up display permanently or sporadically unavailable …LI54.30-P-078309 · Technical service bulletin · Electrical System · issued Feb 10, 2026
- Complaint Model Year 2019-2022 167 (GLE/GLS) - Instrument Cluster Message for Suspension "Do Not Drive Over 50MPH" with or without Illumination of Check Engine Light with DTC's C10…LI32.35-P-079965 · Technical service bulletin · Suspension · issued Feb 9, 2026
- Complaint Only vehicles with a variable transfer case are affected. This can be identified through control unit N45 or N15/7 in the quick test. When accelerating with light load, v…LI27.10-P-075869 · Technical service bulletin · Power Train · issued Feb 3, 2026
- Complaint 1. General Diagnostic Tips 2. One or More PARK Sensor Activations 3. Red Ring Around Vehicle 4. "Active Parking and Parking Assist Inoperative" on Instrument Cluster 5. C…LI54.65-P-080132 · Technical service bulletin · Electrical System · issued Jan 30, 2026
- Complaint The vehicle's position on the map is displayed far away from its actual position, e.g. the vehicle is displayed as being in the middle of the ocean. Note: No relevant DTC…LI82.85-P-078722 · Technical service bulletin · Electrical System · issued Jan 26, 2026
- 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 steerin…LI46.15-P-070510 · Technical service bulletin · Steering · issued Jan 23, 2026
- Complaint Customer concern of Air Conditioning not cooling. *NOTE - Use of tracer DYE for leak checks is not approved. Only approved leak check procedures as per WIS are approved. …LI83.30-P-077763 · Technical service bulletin · Visibility/wiper · issued Jan 21, 2026
- Complaint The intent of this document is to provide workshops with helpful technical reference language. • Commonly used acronyms in LI's and TIPS cases. • Control unit names, numb…LI00.01-P-078887 · Technical service bulletin · Unknown / Other · issued Jan 21, 2026
- Complaint Customer states the AC either does not cool/has poor performance or heat is insufficient. Cause Many possible root causes Remedy *Note - This Li does not apply if there a…LI83.30-P-079850 · Technical service bulletin · Visibility/wiper · issued Jan 16, 2026
- Complaint Customer states the AC either does not cool/has poor performance or heat is insufficient. Cause Many possible root causes Remedy AC Diagnosis (General) Initial Steps Veri…LI83.30-P-079850 · Technical service bulletin · Visibility/wiper · issued Jan 15, 2026
- Complaint Customer states the AC either does not cool/has poor performance or heat is insufficient. Cause Many possible root causes Remedy AC Diagnosis (General) Initial Steps Veri…LI83.30-P-079850 · Technical service bulletin · Visibility/wiper · issued Jan 7, 2026
- Complaint The customer may note the following complaints: - The central display may remain dark through the entire drive cycle. The instrument cluster display will remain operation…LI82.85-P-071623 · Technical service bulletin · Electrical System · issued Jan 2, 2026
- Complaint (Original LI document #: LI27.35-P-079039) Clicking noises from the electro-hydraulic control unit (EHS) when the vehicle is stationary and ECO Start/Stop is active (comb…LI27.35-P-080160 · Technical service bulletin · Power Train · issued Dec 20, 2025
- Complaint The flap of the reversing camera opens and closes by itself during forward travel several times during the trip. No ca mera image is displayed in the head unit. The rever…LI54.65-P-066284 · Technical service bulletin · Electrical System · issued Dec 18, 2025
- Complaint 1. General Diagnostic Tips 2. One or More PARK Sensor Activations 3. Red Ring Around Vehicle 4. "Active Parking and Parking Assist Inoperative" on Instrument Cluster 5. C…LI54.65-P-080132 · Technical service bulletin · Electrical System · issued Dec 11, 2025
- Complaint Traffic sign symbol for "Traffic Sign Assist" is blinking in instrument cluster without obvious cause usually with one of the following scenarios: • Flashing without a sp…LI54.71-P-079104 · Technical service bulletin · Electrical System · issued Dec 11, 2025
- Complaint <p>ESP®, BAS, PRE-SAFE®, HOLD function, Hill-Start Assist, ESP® trailer stabilization, Adaptive Brake Lights, Lane Keeping Assist, Blind Spot Assist, Adaptive Brake Assis…LI54.18-P-067550 · Technical service bulletin · Electrical System · issued Dec 6, 2025
- Complaint Displayed Message: “Driver camera not functioning, see Operator’s Manual” Cause Interior temperature too high due to: • Summer heat • Direct sunlight • Lack of air condit…LI82.85-P-080094 · Technical service bulletin · Electrical System · issued Dec 3, 2025
- Complaint Only vehicles with a variable transfer case are affected. This can be identified through control unit N45 or N15/7 in the quick test. When accelerating with light load, v…LI27.10-P-075869 · Technical service bulletin · Power Train · issued Nov 3, 2025
- Complaint Head-up display permanently or sporadically unavailable - with warning message in driver display (see attachment) Head-up display permanently or sporadically unavailable …LI54.30-P-078309 · Technical service bulletin · Electrical System · issued Oct 24, 2025
- Complaint At low speeds and light brake pressure, brakes will make a groaning or honking noise. Cause Frictional vibrations with very light brake pressure/modulations. Remedy This …LI42.10-P-079904 · Technical service bulletin · Service Brakes · issued Oct 20, 2025
- Complaint The "Easy entry and exit feature" function deactivates itself after a brief period. (see attachment). Cause The cause is currently being investigated. Remedy Update the H…LI91.10-P-078305 · Technical service bulletin · Seats · issued Oct 10, 2025
- Complaint Clanking noise from the area of the speakers in the doors. Cause Under analysis. Remedy To narrow down the cause, first of all remove the door trim. • If the noise contin…LI82.62-P-078631 · Technical service bulletin · Electrical System · issued Oct 10, 2025
- Complaint Customer concern of Air Conditioning not cooling. *NOTE - Use of tracer DYE for leak checks is not approved. Only approved leak check procedures as per WIS are approved. …LI83.30-P-077763 · Technical service bulletin · Visibility/wiper · issued Oct 1, 2025
- Complaint Noise from front end attributable to steering gear. Cause During diagnostics of a front end noise, workshop is under the impression the noise is coming from the steering …LI46.00-P-079786 · Technical service bulletin · Suspension · issued Sep 26, 2025
- 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 i…LI54.10-P-071499 · Technical service bulletin · Electrical System · issued Sep 25, 2025
- Complaint Concern 1 - Noises in recovery mode with the vehicle stationary Concern 2 - Noises when driving in a straight line on rough terrain Concern 3 - Noises when cornering and …LI32.50-P-079670 · Technical service bulletin · Suspension · issued Sep 17, 2025
- Complaint 1. Howling noises from the area of the rear axle 2. Oil discoloration is present during oil change (water in oil) 3. Oil leakage from the breather cap Cause The bleed lin…LI35.31-P-079734 · Technical service bulletin · Power Train · issued Sep 10, 2025
- Complaint Head-up display permanently or sporadically unavailable - with warning message in driver display (see attachment) Head-up display permanently or sporadically unavailable …LI54.30-P-078309 · Technical service bulletin · Electrical System · issued Jun 12, 2025
- In our continuing efforts to ensure the proper performance of Mercedes-Benz products and to enhance the satisfaction of our customers, Mercedes-Benz USA is extending the warranty c…CL - 05012025 · Technical service bulletin · Fuel/propulsion System · issued May 30, 2025
- Complaint MBUX head unit display with red text box "System Inoperative". ONLY for vehicles with SA code (549+21U) or (549+U19). Cause Head unit software variant. Remedy For all cha…LI54.71-P-078802 · Technical service bulletin · Electrical System · issued May 30, 2025
- Complaint Single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end). The clunk is heard once when changing from forward to reverse (…LI33.30-P-056665 · Technical service bulletin · Power Train · issued May 21, 2025
- Complaint Customer concern of Air Conditioning not cooling. Cause Possible refrigerant leak at the evaporator. Remedy Perform the following measures : Remedy 1: (Only applies to ve…LI83.30-P-077763 · Technical service bulletin · Visibility/wiper · issued May 19, 2025
- In our continuing efforts to ensure the proper performance of Mercedes-Benz products and to enhance the satisfaction of our customers, Mercedes-Benz USA, LLC (“MBUSA”) is extending…EW - Tank Leakage · Warranty extension · Fuel/propulsion System · issued May 15, 2025
- Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that certain Model Year (“MY”) 2019 – 2022 C-Class, CLS, E-Class, E-Class Coupe/Convertible, GLE/GLS-Cl…NCU-2025050001 · Technical service bulletin · Electrical System · issued May 8, 2025
- Complaint Please note that the exact quick test conditions must be met as seen below. If not exactly as listed below, there is no need to create a TIPS case referencing this LI unl…LI54.65-P-078762 · Technical service bulletin · Electrical System · issued May 7, 2025
- Complaint Individual functions such as sliding sunroof or roller sunblind can no longer be operated using the gesture recognition system. Cause Gesture recognition system control u…LI82.85-P-078303 · Technical service bulletin · Electrical System · issued May 5, 2025
- 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 i…LI54.10-P-071499 · Technical service bulletin · Electrical System · issued May 2, 2025
- Complaint Hand detection system not operating correctly / vehicles with code 266 Fault message in instrument cluster: "Active Emergency Stop Assist not available" "Active Lane Keep…LI46.10-P-078012 · Technical service bulletin · Steering · issued May 2, 2025
- Complaint Headlamps leaking or fogged Cause The fogging of the headlamp is a natural phenomenon which can occur under certain climatic conditions. In contrast to a leaky headlamp, …LI82.10-P-078896 · Technical service bulletin · Exterior Lighting · issued Apr 28, 2025
- Complaint Headlamp, front fog lamp leaky or fogged Cause Fogging of the headlamps is a natural phenomenon, which can occur under certain climatic conditions. It does not lead to an…LI82.10-P-078301 · Technical service bulletin · Exterior Lighting · issued Apr 28, 2025
- Complaint A pulsating knocking noise (e.g. clattering) can be heard underneath the bench seat, particularly in the case of a full tank (1/1 fill level). Cause The vibrating air col…LI47.10-P-079166 · Technical service bulletin · Fuel/propulsion System · issued Apr 22, 2025
- Complaint Instrument cluster message for rear turn signal lamp despite functioning rear lamp. Fault code in N10/8 - rear signal acquisition and actuation module in the quick test: …LI82.10-P-079175 · Technical service bulletin · Exterior Lighting · issued Apr 21, 2025
- Complaint Head-up display permanently or sporadically unavailable - with warning message in driver display (see attachment) Head-up display permanently or sporadically unavailable …LI54.30-P-078309 · Technical service bulletin · Electrical System · issued Apr 21, 2025
- Complaint Hand detection system not operating correctly / vehicles with code 266 Fault message in instrument cluster: "Active Emergency Stop Assist not available" "Active Lane Keep…LI46.10-P-078012 · Technical service bulletin · Steering · issued Apr 11, 2025
- Complaint Traffic sign symbol for "Traffic Sign Assist" is blinking in instrument cluster without obvious cause usually with one of the following scenarios: • Flashing without a sp…LI54.71-P-079104 · Technical service bulletin · Electrical System · issued Apr 7, 2025
- Complaint Customer concern of Air Conditioning not cooling. Cause Possible refrigerant leak at the evaporator. Remedy Perform the following measures : Remedy 1 (Only applies to veh…LI83.30-P-077763 · Technical service bulletin · Visibility/wiper · issued Apr 1, 2025
- Complaint MBUX head unit display with red text box "System Inoperative". ONLY for vehicles with SA code (549+21U) or (549+U19). Cause Head unit software variant. Remedy For all cha…LI54.71-P-078802 · Technical service bulletin · Electrical System · issued Mar 28, 2025
- 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…LI54.10-P-069698 · Technical service bulletin · Electrical System · issued Mar 25, 2025
- Complaint A clicking/ticking/taping noise from underneath the vehicle with engine off during ECO stop event or after parking See video for example Cause Noise originates within the…LI27.35-P-079039 · Technical service bulletin · Power Train · issued Mar 24, 2025
- Complaint MBUX headunit display with red text box "System Inoperative". ONLY for vehicles with SA code (549+21U) or (549+U19). Cause Under analysis. Remedy For chassis 118, 167, 17…LI54.71-P-078802 · Technical service bulletin · Electrical System · issued Mar 18, 2025
- Complaint Head-up display permanently or sporadically unavailable - with warning message in driver display (see attachment) Head-up display permanently or sporadically unavailable …LI54.30-P-078309 · Technical service bulletin · Electrical System · issued Mar 7, 2025
- Complaint During a phone call, the called party has difficulty understanding/cannot understand the driver, or interference/background noises are audible to the called party during …LI82.70-P-077433 · Technical service bulletin · Electrical System · issued Mar 5, 2025
- Complaint Check engine light illuminated Fault code present in MRG3 control unit P22C800 or P22C900 - The valve of the exhaust gas turbocharger is jammed. Cause Check valve in char…LI09.41-P-078735 · Technical service bulletin · Engine · issued Mar 4, 2025
- Complaint The flap of the reversing camera opens and closes by itself during forward travel several times during the trip. No camera image is displayed in the head unit. The revers…LI54.65-P-066284 · Technical service bulletin · Electrical System · issued Feb 24, 2025
- Complaint The flap of the reversing camera opens and closes by itself during forward travel several times during the trip. No camera image is displayed in the head unit. The revers…LI54.65-P-066284 · Technical service bulletin · Electrical System · issued Feb 24, 2025
- Complaint Customer-perceived problem: • Fuel gauge reading implausible • MIL ON (market-dependent) N118/3 Fault codes in control units FSCM_GEN4/5/6 • For these fault codes, the te…LI47.50-P-078804 · Technical service bulletin · Fuel/propulsion System · issued Feb 21, 2025
- Complaint The intent of this document is to provide workshops with helpful technical reference language. • Commonly used acronyms in LI's and TIPS cases. • Control unit names, numb…LI00.01-P-078887 · Technical service bulletin · Unknown / Other · issued Feb 20, 2025
- Complaint Please note that the exact quick test conditions must be met as seen below. If not exactly as listed below, there is no need to create a TIPS case referencing this LI unl…LI54.65-P-078762 · Technical service bulletin · Electrical System · issued Feb 12, 2025
- Complaint Noises/ squealing from the service brake in various driving situations and ambient conditions. Cause Frictional vibrations Remedy AMG brake systems are designed for high …LI42.10-P-063502 · Technical service bulletin · Service Brakes · issued Feb 3, 2025
- 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're enjoying your vehicle. Here at …CL - Comm Module OTA · Technical service bulletin · Electrical System · issued Jan 31, 2025
- Complaint Head-up display permanently or sporadically unavailable - with warning message in driver display (see attachment) Head-up display permanently or sporadically unavailable …LI54.30-P-078309 · Technical service bulletin · Electrical System · issued Jan 28, 2025
- Complaint Fuel door may require several attempts to open. Please note that if the complaint "Fuel filler flap not opening" occurs, it is important to check the fuel filler flap bef…LI88.60-P-072093 · Technical service bulletin · Structure · issued Jan 24, 2025
- Complaint If TRANSMISSION 725.1 (9G TRONIC FACELIFT) exhibits any "shift quality" problem symptoms, various optimized diagnosis procedures are available to you for selected vehicle…LI27.00-P-073532 · Technical service bulletin · Power Train · issued Jan 19, 2025
- Complaint Noises/ squealing from the service brake in various driving situations and ambient conditions. Cause Frictional vibrations Remedy AMG brake systems are designed for high …LI42.10-P-063502 · Technical service bulletin · Service Brakes · issued Jan 18, 2025
- Complaint Noises/ squealing from the service brake in various driving situations and ambient conditions. Cause Frictional vibrations Remedy AMG brake systems are designed for high …LI42.10-P-063502 · Technical service bulletin · Service Brakes · issued Jan 16, 2025
- Complaint Single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end). The noise is heard once in each instance when changing directio…LI35.30-P-058566 · Technical service bulletin · Power Train · issued Jan 15, 2025
- Complaint When using the offroad display in the MBUX, the "Transparent hood" function cannot be activated using the camera symbol. Cause MBUX FUP5 software: • E504.3 (A 297 904 97 …LI82.85-P-078156 · Technical service bulletin · Electrical System · issued Jan 14, 2025
- Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY21-25 C-Class, CLA, EQB, AMG GT, EQE, EQS, G-CLASS, GLB, GLC, GLE, GLS, S-CLASS, AMG …OTA - 2025010010 · Technical service bulletin · Electrical System · issued Jan 10, 2025
- Complaint Please note that the exact quick test conditions must be met as seen below. If not exactly as listed below, there is no need to create a TIPS case referencing this LI unl…LI54.65-P-078762 · Technical service bulletin · Electrical System · issued Jan 9, 2025
- Complaint Play noticeable in the height adjustment of the steering column. See arrow direction in attached pictures. Cause Slipped thrust bearing ring on the height adjustment. Rem…LI46.15-P-078766 · Technical service bulletin · Steering · issued Jan 8, 2025
- Complaint The vehicle's position on the map is displayed far away from its actual position, e.g. the vehicle is displayed as being in the middle of the ocean. Note: In the quick te…LI82.85-P-078722 · Technical service bulletin · Electrical System · issued Jan 3, 2025
- Complaint Check engine light illuminated Fault code present in MRG3 control unit P22C900 - The valve of the exhaust gas turbocharger is jammed closed. Cause Check valve in charge a…LI09.41-P-078735 · Technical service bulletin · Engine · issued Dec 19, 2024
- Complaint Low engine oil level warning. Engine oil leak under vehicle. Cause Rear crankshaft radial seal rolled during installation Remedy -Check for external oil leak with visual …LI03.20-P-078715 · Technical service bulletin · Engine · issued Dec 19, 2024
- Complaint <p> After a software update, the MBUX multimedia system (A26/17) may incorrectly display the fault code B19C804 "Software tampering has been detected. There is an interna…LI82.85-P-068986 · Technical service bulletin · Electrical System · issued Dec 6, 2024
- Complaint Clanking noise from the area of the speakers in the doors. Cause Under analysis. Remedy To narrow down the cause, first of all remove the door trim. • If the noise contin…LI82.62-P-078631 · Technical service bulletin · Structure · issued Dec 3, 2024
- Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY21-25 C-Class, CLA, EQB, EQE, EQS, G-Class, GLA, GLB, GLC, GLE, GLS, GT, S-Class, and…OTA - 24P5497813 · Technical service bulletin · Electrical System · issued Nov 27, 2024
- Complaint Transmission control unit Y3/8n4 (fully integrated transmission control unit (VGS)) not listed in quick test and/or no communication possible with VGS. Cause Transmission…LI27.19-P-072588 · Technical service bulletin · Power Train · issued Nov 20, 2024
- Complaint After a control unit replacement of "N112/9 - control unit for telematics services (HERMES)" or the "N112/2 - control unit for telematics services (RAMSES)", the Digital …LI82.85-P-078473 · Technical service bulletin · Electrical System · issued Nov 20, 2024
- Complaint Engine cooling fan running for an extended time after switching off vehicle. Cause Optimized thermal management in latest PTCU software. Remedy This is a normal function …LI20.40-P-078593 · Technical service bulletin · Engine · issued Nov 19, 2024
- Complaint Rear lamps fogged up/not leaktight. Cause Fogging of the rear lamps is a natural phenomenon, which can occur under certain climatic conditions. This does not lead to any …LI82.10-P-078069 · Technical service bulletin · Visibility/wiper · issued Nov 13, 2024
- Complaint Only vehicles with a variable transfer case are affected. Can be identified through control unit N45 or N15/7 in the quick test When accelerating with light load, vibrati…LI27.10-P-075869 · Technical service bulletin · Power Train · issued Nov 12, 2024
- Complaint When using the offroad display in the MBUX, the "Transparent hood" function cannot be activated using the camera symbol. Cause MBUX FUP5 software: • E504.3 (A 297 904 97 …LI82.85-P-078156 · Technical service bulletin · Electrical System · issued Nov 12, 2024
- 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 …LI80.50-P-077350 · Technical service bulletin · Electrical System · issued Nov 4, 2024
- Complaint Automatic window raising function of side window inoperative. Cause Denormalization of the window lifter system. Remedy Update the software in the affected door control u…LI72.40-P-078535 · Technical service bulletin · Visibility/wiper · issued Nov 1, 2024
- Complaint Customer concern of Air Conditioning not cooling. Cause Possible refrigerant leak at the evaporator. Remedy Perform the following measures : Remedy 1 (Only applies to veh…LI83.30-P-077763 · Technical service bulletin · Visibility/wiper · issued Oct 30, 2024
- 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 …LI80.50-P-077350 · Technical service bulletin · Electrical System · issued Oct 29, 2024
- Complaint Washer fluid system leaks Cause Various possible causes: 1. Washer fluid reservoir itself. 2. Seal on washer fluid pump/washer fluid reservoir. 3. Washer fluid pump. 3.1.…LI82.35-P-078467 · Technical service bulletin · Structure · issued Oct 23, 2024
- Complaint After a control unit replacement of "N112/9 - control unit for telematics services (HERMES)" or the "N112/2 - control unit for telematics services (RAMSES)", the Digital …LI82.85-P-078473 · Technical service bulletin · Electrical System · issued Oct 3, 2024
- Complaint Customer concern of Air Conditioning not cooling. Cause Possible refrigerant leak at the evaporator. Remedy Perform the following measures : Remedy 1 (Only applies to veh…LI83.30-P-077763 · Technical service bulletin · Visibility/wiper · issued Oct 1, 2024
- Complaint 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. Cause Sof…LI82.60-P-077495 · Technical service bulletin · Electrical System · issued Sep 28, 2024
- Complaint During a phone call, the called party has difficulty understanding/cannot understand the driver, or interference/background noises are audible to the called party during …LI82.70-P-077433 · Technical service bulletin · Electrical System · issued Sep 28, 2024
- Complaint Headlamps leaking or fogged Cause The fogging of the headlamp is a natural phenomenon which can occur under certain climatic conditions. In contrast to a leaky headlamp, …LI82.10-P-078307 · Technical service bulletin · Exterior Lighting · issued Sep 21, 2024
- Complaint 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. Cause Sof…LI82.60-P-077495 · Technical service bulletin · Electrical System · issued Sep 20, 2024
- Complaint When using the offroad display in the MBUX, the "Transparent hood" function cannot be activated using the camera symbol. Cause MBUX FUP5 software: • E504.3 (A 297 904 97 …LI82.85-P-078156 · Technical service bulletin · Electrical System · issued Sep 18, 2024
- Complaint Customer concern of Air Conditioning not cooling. Note: For vehicles produced during or prior to June 2023, a TIPS case is not necessary. However, parts from repairs on s…LI83.30-P-077763 · Technical service bulletin · Visibility/wiper · issued Sep 12, 2024
- Complaint Individual functions such as sliding sunroof or roller sunblind can no longer be operated using the gesture recognition system. Cause Gesture recognition system control u…LI82.85-P-078303 · Technical service bulletin · Visibility/wiper · issued Sep 11, 2024
- Complaint Headlamp or front fog lamp leaky or fogged Cause Fogging of the headlamps is a natural phenomenon, which can occur under certain climatic conditions. It does not lead to …LI82.10-P-078301 · Technical service bulletin · Exterior Lighting · issued Sep 10, 2024
- Complaint Damage or discoloration to paint protection films on vehicle. Cause Chip protection films are a wear item that may need to be replaced over the life of the vehicle. They …LI98.00-P-078106 · Technical service bulletin · Structure · issued Sep 10, 2024
- Complaint To insure vehicle down time is kept at a minimum and all required information is available when case is escalated, as well as assist technicians with checks that may help…LI27.00-P-075630 · Technical service bulletin · Power Train · issued Sep 9, 2024
- Complaint • Head-up display permanently or sporadically unavailable - with warning message in driver display • Head-up display permanently or sporadically unavailable - without war…LI54.30-P-078309 · Technical service bulletin · Exterior Lighting · issued Aug 19, 2024
- Complaint Customer concern of Air Conditioning not cooling. Cause Possible refrigerant leak at the evaporator. Remedy Perform the following measures : 1. Initial Quick Test 2. Crea…LI83.30-P-077763 · Technical service bulletin · Visibility/wiper · issued Aug 3, 2024
- Complaint Yellow coolant warning system message appears in instrument cluster. Fault code P048392 or P048397 present in N127 Powertrain Control Unit. Cause Faulty communication bet…LI20.40-P-070996 · Technical service bulletin · Engine · issued Jul 31, 2024
- Complaint Rear lamps fogged up/not leaktight. Cause Fogging of the rear lamps is a natural phenomenon, which can occur under certain climatic conditions. This does not lead to any …LI82.10-P-078069 · Technical service bulletin · Exterior Lighting · issued Jul 23, 2024
- Complaint Hand detection system not operating correctly / vehicles with code 266 Fault message in instrument cluster: "Active Emergency Stop Assist not available" "Active Lane Keep…LI46.10-P-078012 · Technical service bulletin · Electrical System · issued Jul 15, 2024
- Complaint Customer complaints relating to automatic transmission 725.0 (NAG3 Classic / 9G-TRONIC automatic transmission) and 725.1 (NAG3 facelift/9G-TRONIC automatic transmission f…LI27.00-P-073124 · Technical service bulletin · Power Train · issued Jul 9, 2024
- Complaint Only vehicles with a variable transfer case are affected. Can be identified through control unit N45 or N15/7 in the quick test When accelerating with light load, vibrati…LI27.10-P-075869 · Technical service bulletin · Power Train · issued Jul 9, 2024
- Complaint Customer concern of Air Conditioning not cooling. Cause Possible refrigerant leak at the evaporator. Remedy Perform the following measures : 1. Initial Quick Test 2. Crea…LI83.30-P-077763 · Technical service bulletin · Visibility/wiper · issued Jun 27, 2024
- Complaint • Seats cannot be adjusted • Seats cannot be folded • Seats in the 2nd seat row cannot be locked or unlocked • Normalization cannot be performed in its entirety using XEN…LI91.12-P-073742 · Technical service bulletin · Electrical System · issued Jun 27, 2024
- Complaint The following event codes are logged in control unit IDC213 - N62/4 (Intelligent Drive control unit): U0401FC and U0401FD. Cause Under analysis. Remedy Neither of the two…LI54.71-P-077938 · Technical service bulletin · Visibility/wiper · issued Jun 12, 2024
- Customer concern of Air Conditioning not cooling. Possible refrigerant leak at the evaporator. Remedy Perform the following measures and open a TIPS case in the HV/LV inbox labeled…LI83.30-P-077763 · Technical service bulletin · Visibility/wiper · issued May 25, 2024
- Complaint 1. Cracking noises from the area of the rear axle 2. or a message in the instrument cluster "ESP, ABS failed". Cause Anti-cracking disk at the external joint of the side …LI35.30-P-077843 · Technical service bulletin · Service Brakes · issued May 16, 2024
- Complaint Message in Instrument Cluster: "Active Brake Assist function restricted". The driver assistance systems are temporarily unavailable. Note: Please note the listed fault co…LI54.71-P-077857 · Technical service bulletin · Electrical System · issued May 14, 2024
- Complaint Customer concern of Air Conditioning not cooling. Cause Possible refrigerant leak at the evaporator. Remedy Perform the following measures and open a TIPS case labeled "1…LI83.30-P-077763 · Technical service bulletin · Visibility/wiper · issued May 8, 2024
- Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY21-24 C-Class, CLA, EQB, EQE, EQS, GLA, GLB, GLC, GLE, GLS, GT, S-Class, and SL (118,…OTA - 20240503 · Technical service bulletin · Electrical System · issued May 4, 2024
- Work procedure 1. Connect XENTRY Diagnosis. 2. Update left rear seat control unit software. - To do this, select menu item "Quick test view – N32/5 – Left rear electrical seat adju…NCU - 2024040010 · Technical service bulletin · Electrical System · issued May 4, 2024
- High-frequency interference noise may be heard from the speakers while driving. This complaint only occurs when "voice amplification" is active. Coupling noise of microphone signal…LI82.85-P-069851 · Technical service bulletin · Electrical System · issued May 2, 2024
- 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 co…CL - 240401 · Technical service bulletin · Electrical System · issued Apr 30, 2024
- 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…LI83.30-P-077763 · Technical service bulletin · Visibility · issued Apr 26, 2024
- 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, G…OTA - 20240402 · Technical service bulletin · Electrical System · issued Apr 26, 2024
- 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. P…LI47.20-P-071172 · Technical service bulletin · Engine and Engine Cooling · issued Apr 23, 2024
- 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 custome…EW - FSCM SW · Technical service bulletin · Electrical System · issued Apr 12, 2024
- Mercedes-Benz AG (à ¢à  à  MBAGà ¢à  à  ), the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY 21-24 C-Class, EQE, EQS, GLC, GLE, GLS, S-Class, SL (…OTA-24240203 · Technical service bulletin · Electrical System · issued Feb 29, 2024
- 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…LI82.60-P-077553 · Technical service bulletin · Electrical System · issued Feb 23, 2024
- 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. Software version Re…LI82.60-P-077495 · Technical service bulletin · Electrical System · issued Feb 15, 2024
- Mercedes-Benz AG (à ¢à  à  MBAGà ¢à  à  ), the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY20-23 A-Class, C-Class, CLA, CLS, E-Class, GLA, GLB, G…OTA-24240201 · Technical service bulletin · Electrical System · issued Feb 9, 2024
- Mercedes-Benz AG (â  MBAGâ  ), 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…NCU-OTA Comm Mod · Technical service bulletin · Electrical System · issued Jan 29, 2024
- Noises in the steering column area when steering. Under analysis. Check which area of the steering column the noises occur in. Do the noises tend to occur at the bottom in the driv…LI46.10-P-077314 · Technical service bulletin · Steering · issued Jan 24, 2024
- 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: Lenkra…LI46.10-P-077313 · Technical service bulletin · Steering · issued Jan 24, 2024
- 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. Particularly when braki…LI46.10-P-077391 · Technical service bulletin · Steering · issued Jan 24, 2024
- Mercedes-Benz AG (â  MBAGâ  ), 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, …NCU-OTAcommNoMMC · Technical service bulletin · Electrical System · issued Jan 18, 2024
- 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 …LI80.50-P-077350 · Technical service bulletin · Electrical System · issued Jan 12, 2024
- Mercedes-Benz AG (â  MBAGâ  ), 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,…OTA-Comm Mod SW · Technical service bulletin · Electrical System · issued Dec 7, 2023
- Crease formation on genuine leather seat covers in vehicles with low mileage â ¢ Objects left on the seats for extended periods of time (pressure marks). â ¢ Objects wedged b…LI91.18-P-077075 · Technical service bulletin · Seats · issued Dec 4, 2023
- 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…OTA-Head Unit SW · Technical service bulletin · Electrical System · issued Dec 1, 2023
- 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, fold…LI72.00-P-072603 · Technical service bulletin · Visibility · issued Oct 25, 2023
- The "SOS nonfunctional" message appears sporadically in the instrument cluster of the vehicle. The fault code B129C00 is stored in the control unit log. The message occurs in parti…LI82.85-P-076800 · Technical service bulletin · Electrical System · issued Oct 10, 2023
- Mercedes-Benz AG (â MBAGâ ), 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,…NCU-HU SW Update · Technical service bulletin · Electrical System · issued Aug 28, 2023
- Mercedes-Benz AG (â MBAGâ ), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year 2021 C-Class (205 platform), CLA (118 platform), G-Class (463 pla…NCU-2023070019 · Technical service bulletin · Engine and Engine Cooling · issued Aug 25, 2023
- In the MBUX weather app, the temperature is displayed in the wrong unit (Fahrenheit instead of °C, or vice versa). Temperature setting in Mmc mobile application settings incorrect…LI82.85-P-075375 · Technical service bulletin · Electrical System · issued Jun 9, 2023
- Mercedes-Benz AG (â MBAGâ ), the manufacturer of Mercedes-Benz vehicles, has determined that the affected vehicles may not meet current On Board Diagnostics (â OBDâ ) emissions spe…NCU-2022100005 · Technical service bulletin · Engine and Engine Cooling · issued Mar 23, 2023
- Mercedes-Benz AG (â MBAGâ ), 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,…NCU-2022010001 · Technical service bulletin · Electrical System · issued Feb 10, 2023
- Mercedes-Benz AG ("MBAG"), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (â MYâ ) 2021 GLE/GLS-Class, E-Class, E-Class Coupe/Convertible, CL…NCU-2021060009 · Technical service bulletin · Power Train · issued Feb 8, 2023
- 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, handba…LI72.20-P-075746 · Technical service bulletin · Electrical System · issued Jan 5, 2023
- 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…LI54.10-P-069698 · Technical service bulletin · Power Train · issued Dec 12, 2022
- 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 th…LI46.15-P-063353 · Technical service bulletin · Steering · issued Dec 1, 2022
- 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…LI54.10-P-069698 · Technical service bulletin · Electrical System · issued Oct 27, 2022
- Mercedes-Benz AG ("MBAG"), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (â MYâ ) 2021 GLE/GLS-Class, E-Class, E-Class Coupe/Convertible, CL…NCU-2021060009 · Technical service bulletin · Electrical System · issued Oct 7, 2022
- 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 t…LI68.10-P-075301 · Technical service bulletin · Structure · issued Sep 12, 2022
- 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 th…LI46.15-P-063353 · Technical service bulletin · Steering · issued Sep 12, 2022
- Complaint Customer states after a bus sleep the SiriusXM category changes from "My Favorites" to "All Stations" or a different category. Sometimes, the "My Favo…LI82.60-P-075292 · Technical service bulletin · Electrical System · issued Sep 8, 2022
- 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…LI54.10-P-069698 · Technical service bulletin · Power Train · issued Sep 6, 2022
- Mercedes-Benz AG (â MBAGâ ), the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY 2020-2021 GLE-Class and GLS-Class (167 platform) vehicles equipped with M…SC-2022070010 · Technical service bulletin · Equipment · issued Jul 29, 2022
- Mercedes-Benz AG (â MBAGâ ), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year 2021 CLA (118 platform), GLE/GLS (167 platform), C-Class (205 pla…SC-2021070006 · Technical service bulletin · Equipment · issued Jul 7, 2022
- Mercedes-Benz AG (â MBAGâ ), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (â MYâ ) 2020-2022 A-Class, C-Class, CLAClass, GLA-Class, GLB-Cla…NCU-2022060008 · Technical service bulletin · Electrical System · issued Jun 30, 2022
- Mercedes-Benz AG (â MBAGâ ), the manufacturer of Mercedes-Benz, has determined that on certain Model Year (â MYâ ) 2021 CLA-Class, GLA-Class, GLE-Class, GLS-Class, A-Class, C-Class…P-SC-2022030014 · Technical service bulletin · Equipment · issued May 20, 2022
- Cause Communication fault between electrohydraulic suspension component parts through out-of-date software (application software and bootloader software). Remedy With the latest ha…LI32.50-P-074719 · Technical service bulletin · Suspension · issued Apr 18, 2022
- Complaint â ¢ Seats cannot be adjusted â ¢ Seats cannot be folded â ¢ Seats in the 2nd seat row cannot be locked or unlocked â ¢ Normalization cannot be performed in its entirety u…LI91.12-P-073742 · Technical service bulletin · Electrical System · issued Apr 13, 2022
- Mercedes-Benz AG (â MBAGâ ), 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-Cl…SC-202201001 · Technical service bulletin · Electrical System · issued Mar 18, 2022
- Mercedes-Benz AG (â MBAGâ ), 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-Cl…SC-2022010001 · Technical service bulletin · Electrical System · issued Feb 25, 2022
- Complaint Intermittently, engine switches off within a few seconds after being started via the Remote Engine Start (RES) command from the Mercedes me app. The customer may receive …LI82.95-P-074415 · Technical service bulletin · Electrical System · issued Feb 22, 2022
- Mercedes-Benz AG (â MBAGâ ), the manufacturer of Mercedes-Benz, has determined that in certain MY 2021 GLS-Class (167 platform) vehicles, the SCN coding in the â electronic ignitio…SC-2022020003 · Technical service bulletin · Electrical System · issued Feb 18, 2022
- Mercedes-Benz AG ("MBAG"), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (â MYâ ) 2020-2021 CLA-Class (118 platform), GLE/GLS-Class (167 pla…SC-2021070003 · Technical service bulletin · Engine and Engine Cooling · issued Feb 11, 2022
- Perform SCN coding in the active suspension and damping system control unitSC-2022020010 · Technical service bulletin · Electrical System · issued Feb 10, 2022
- Replace bolts for centering flange on integrated starter-alternatorSC-2022020009 · Technical service bulletin · Electrical System · issued Feb 9, 2022
- Mercedes-Benz AG (â MBAGâ ), 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 …SC-2022010008 · Technical service bulletin · Electrical System · issued Feb 4, 2022
- Mercedes-Benz AG (â MBAGâ ), the manufacturer of Mercedes-Benz, has determined that on certain MY 2020-2021 GLE-Class and GLS-Class (167 platform) vehicles, the electrohydraulic su…NCU-2021120012 · Technical service bulletin · Equipment · issued Jan 14, 2022
- 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…LI32.22-P-073368 · Technical service bulletin · Suspension · issued Jan 5, 2022
- "MY15+ M278 and M157 Equipped Vehicles with Fault Code ""P023400 â Boost Pressure is Too High"" "LI09.00-P-074093 · Technical service bulletin · Engine and Engine Cooling · issued Dec 8, 2021
- Check coolant line of battery cooling, replace if necessary2021100009 · Technical service bulletin · Electrical System · issued Nov 21, 2021
- New service campaign launch information.NCU2021080002 · Technical service bulletin · Equipment · issued Oct 29, 2021
- New service campaign launch information.NCU2021070013 · Technical service bulletin · Equipment · issued Oct 22, 2021
- New service campaign launch information.NCU2021070018 · Technical service bulletin · Equipment · issued Oct 1, 2021
- Model series 167 noise on B/C/D pillars.LI6320P073629 · Technical service bulletin · Back Over Prevention · issued Sep 16, 2021
- Excessive resistance of door side windows when being raised/lowered, cracking and squeaking noises.LI7200P072603 · Technical service bulletin · Visibility · issued Aug 11, 2021
- Yellow "Coolant" message in instrument cluster.LI2000P073432 · Technical service bulletin · Engine and Engine Cooling · issued Aug 4, 2021
- Sporadic warning message in instrument cluster "Engine oil pressure stop switch off vehicle"" or similar is shown in red on vehicles with low mileage.LI1800P073137 · Technical service bulletin · Electrical System · issued Aug 4, 2021
- Launch NCU - 2021060016 MY21 167 Update Front and Rear Active Roll Stabilization Control UnitNCU-2021060016 · Technical service bulletin · Electrical System · issued Jul 16, 2021
- with engine M17x the ME Control Unit: "The Coolant Temperature is Below the Specified Temperature"LI20.10-P-072886 · Technical service bulletin · Engine and Engine Cooling · issued Apr 20, 2021
- Noise From Air Conditioner Housing (Humming)LI83.40-P-071168 · Technical service bulletin · Equipment · issued Mar 30, 2021
- 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 …LI46.10-P-072751 · Technical service bulletin · Electrical System · issued Mar 29, 2021
- Armrest In Center Console (Front) Only Opens On One Side Or Not At All - Model Series 167LI68.20-P-070037 · Technical service bulletin · Equipment · issued Mar 26, 2021
- Unmotivated park sensor warnings without any objects in the vicinityLI54.65-P-072662 · Technical service bulletin · Back Over Prevention · issued Mar 17, 2021
- Suspension fault message in instrument cluster to drive at max. 80 km/hLI32.34-P-072600 · Technical service bulletin · Electrical System · issued Mar 9, 2021
- 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 supplementan…Launch NCU 20210 · Technical service bulletin · Air Bags · issued Mar 5, 2021
- The seat cushion cover on the front seat cracks when side bolster is equipped with "ARTICO man-made leather upholstery". For vehicles equipped with "ARTICO man-made leather upholst…LI91.18-P-071629 · Technical service bulletin · Structure · issued Feb 23, 2021
- 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 (N…LI82.27-P-072402 · Technical service bulletin · Back Over Prevention · issued Feb 22, 2021
- Warning display message for eSuspension, various causes and remedies listed.LI32.40-P-072070 · Technical service bulletin · Suspension · issued Jan 4, 2021
- 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 movemen…LI32.50-P-072071 · Technical service bulletin · Equipment · issued Jan 4, 2021
- The backrests of the second seat row (60% and 40% side) are offset relative to each other.LI91.12-P-072068 · Technical service bulletin · Seats · issued Jan 4, 2021
- Creaking noise from fixed glass section of panoramic roof in area of rear passenger compartment grab handlesLI77.21-P-072113 · Technical service bulletin · Visibility · issued Dec 8, 2020
- 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 platf…NCU-2020110009 · Technical service bulletin · Tires · issued Nov 13, 2020
- 167 GLS headlight low beam faultLI82.10-P-070615 · Technical service bulletin · Exterior Lighting · issued Dec 10, 2019
- Ticking or pulsing noise from high-pressure pump and/or fuel injectors.LI0702P0547173 · Technical service bulletin · Engine and Engine Cooling · issued Nov 14, 2016
- Gasket may settle causing a slight oil leak.LI1830P0597123 · Technical service bulletin · Unknown / Other · issued Aug 5, 2016