2022 Mercedes-Benz GLC 300 service bulletins & manufacturer communications
189 manufacturer communications are on file with NHTSA for the 2022 Mercedes-Benz GLC 300. TSBs are repair guidance for dealers — they are not recalls, and repairs are not automatically free.
Technical service bulletin 184Warranty extension 3Service campaign 2
- 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
- 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 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 Jul 8, 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 Jul 7, 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 6/19 · Technical service bulletin · Engine · issued Jun 19, 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 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
- Complaint The customer requests deactivation of the N112/9 HERMES communication module Note: Deactivation of the HERMES control unit (N112/9) is not supported for gray-market vehic…LI82.85-P-080559 · 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 There are several types of complaint about noises or poor windshield wiper wiping performance: A: Wiper blades squeaking, chattering, shuddering B: The windshield is not …LI82.30-P-059239 · Technical service bulletin · Visibility/wiper · issued May 19, 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 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
- Complaint The panoramic sliding sunroof operates in a stepped movement. The panoramic roof becomes denormalized without an apparent reason (not directly after control unit replacem…LI77.21-P-080503 · Technical service bulletin · Electrical System · issued Apr 30, 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 -Check engine light illuminated. -Engine runs rough. -Poor shifting or jerking when accelerating. -Fault codes stored related to mixture formation, injector quantity adju…LI01.30-P-072328 · Technical service bulletin · Engine · issued Mar 27, 2026
- 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 HU…LI91.10-P-078305 · Technical service bulletin · Electrical System · issued Mar 26, 2026
- Complaint Customer concern for ESP/Brake or Steering yellow instrument cluster message AND C220564 in the N80 Steering Column Control Module (Valeo Parts only). To check which supp…LI46.10-P-079374 · Technical service bulletin · Electrical System · issued Mar 25, 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 The seat may no longer be adjustable using the electric seat adjustment switch on the door module. No related error is stored in the quick test. Cause Under certain condi…LI82.00-P-080029 · Technical service bulletin · Seats · 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 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 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
- 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 Feb 24, 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
- Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain subject vehicles, the TIREFIT sealant bottle may not meet specifications. The possibili…NCU - 2025090001 · Service campaign · Unknown / Other · issued Feb 13, 2026
- Complaint The vehicle cannot disengage “P” (Park), and a red warning message appears in the instrument cluster. Cause Only vehicles with transmission NAG3C 725.0 and engine M264 wi…LI27.60-P-080167 · Technical service bulletin · Power Train · issued Feb 12, 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 -Check engine light illuminated. -Engine runs rough. -Poor shifting or jerking when accelerating. -Fault codes stored related to mixture formation, injector quantity adju…LI01.30-P-072328 · Technical service bulletin · Engine · issued Feb 2, 2026
- Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain subject vehicles, the ME-SFI control unit software does not meet current production spe…NCU - 2025040013 · Service campaign · Electrical System · issued Jan 31, 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 · Back Over Prevention · issued Jan 30, 2026
- Dear Mercedes-Benz Owner: In our continuing efforts to ensure the proper performance of Mercedes-Benz products and to enhance the satisfaction of our customers, Mercedes-Benz USA i…CL - EW M264 · Technical service bulletin · Engine · issued Jan 23, 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
- 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 is extending the warra…EW - Cylinder Head M264 · Warranty extension · Engine · issued Jan 10, 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 (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 The shift from 1st to 2nd gear may be uncomfortable under light load. Cause Vehicles with engine M264 and transmission 725.0 may be equipped with specific software versio…LI27.60-P-079967 · Technical service bulletin · Power Train · issued Nov 17, 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 Nov 15, 2025
- Complaint Possible complaints about shift quality, issues with learning the park lock, and slipping/rinse entries in the EEPROM or Transmission Health system following the replacem…LI27.35-P-079971 · Technical service bulletin · Power Train · issued Nov 10, 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 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 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 Sep 17, 2025
- Complaint After a software update from campaign 2025050001 of component LIB48_222 - G1/3 (48 V on-board electrical system battery) from software release A 000 902 50 48 to software…LI54.10-P-079772 · Technical service bulletin · Electrical System · issued Sep 16, 2025
- Complaint Users report that the browser no longer supports search queries entered directly into the address bar. Cause This update is due to Microsoft discontinuing the Bing Search…LI82.85-P-079723 · Technical service bulletin · Electrical System · issued Aug 29, 2025
- 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 Jul 25, 2025
- Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has updated driver assistance system software available for certain subject vehicles. The updated software improves sy…OTA - 20250725 · Technical service bulletin · Lane Departure · issued Jul 25, 2025
- Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain subject vehicles, the MBUX system software does not correspond with the latest series p…OTA - 25P5497847 · Technical service bulletin · Electrical System · issued Jul 11, 2025
- Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain subject vehicles, the instrument cluster software does not correspond to current produc…OTA - 25P5497844 · Technical service bulletin · Electrical System · issued Jul 11, 2025
- Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has updated driver assistance system SCN coding available for certain subject vehicles. The updated SCN coding improve…OTA - 20250627 · Technical service bulletin · Lane Departure · issued Jun 28, 2025
- Complaint Height adjustment of electric steering column adjustment jammed in the top/bottom adjustment position (e.g. with Easy Entry function), noise (breakaway noise) when leavin…LI46.15-P-063353 · Technical service bulletin · Steering · issued Jun 9, 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 The following most common complaints may be observed: • Brief connectivity interruptions when using Apple CarPlay over Wi-Fi • Audio cuts out • Device not recognized • No…LI82.85-P-079088 · Technical service bulletin · Electrical 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 Load compartment cover generates a creaking noise during driving when pulled out to covering position. Cause Aluminum cassette scrapes on the inside of the end cap. The c…LI68.50-P-079347 · Technical service bulletin · Structure · issued May 29, 2025
- Complaint After a software update of HERMES communication module N112/9 has been performed on a gray import vehicle, the message "SOS - Service not activated" is displayed in the i…LI82.85-P-079271 · Technical service bulletin · Electrical System · issued May 22, 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
- 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
- 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 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 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 · Electrical System · issued Apr 21, 2025
- Complaint A popup is seen on the HU with the message "data connection temporarily not available". Potentially affected functionalities in NTG4.5, NTG5 1.Weather 2.Local Search 3.IP…LI82.85-P-079087 · Technical service bulletin · Electrical System · issued Apr 21, 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 Rear cross traffic activation without obvious cause. Cause Verify customer concern with the assistance of the Operator's Manual: • Symbol displayed on headunit. • Audible…LI54.71-P-078778 · Technical service bulletin · Back Over Prevention · issued Apr 4, 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 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 · Back Over Prevention · issued Mar 18, 2025
- Complaint - Engine diagnosis indicator lamp (MIL) lights up. - Current and saved fault code in DCCU and powertrain control unit (PTCU): P2E9873 The position sensor of the external …LI47.70-P-078563 · Technical service bulletin · Power Train · issued Mar 13, 2025
- Complaint The message "Device detected at diagnostics connection See Owner’s Manual" appears sporadically in the multifunction display of the instrument cluster while driving (see …LI54.30-P-079004 · Technical service bulletin · Exterior Lighting · issued Mar 11, 2025
- Complaint The luggage compartment lighting switches off and back on erratically if the tailgate is opened with the ignition switched off. Cause The problem was caused by a software…LI82.20-P-079002 · Technical service bulletin · Exterior Lighting · issued Mar 10, 2025
- Issue Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain subject vehicles, the communication software does not correspond with the latest …OTA - 5497748 · 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 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
- Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY19-25 A-Class, C-Class, CLA, CLS, E-Class, G-Class, GLA, GLB, GLC, GT, and S-Class (1…OTA- 24P5497747 · Technical service bulletin · Electrical System · issued Feb 7, 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 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 Creaking noise, in irregular sequence when driving slowly in combination with slight steering movements. Sound file attached for comparison. NOTE: Steering functionality …LI33.20-P-078406 · Technical service bulletin · Suspension · 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 - Digital light pop-up messages (warnings, notes, spotlight and dyn. low beam) appear in the instrument cluster (picture in attachment), even though the same digital ligh…LI82.10-P-078070 · Technical service bulletin · Exterior Lighting · issued Jan 24, 2025
- Complaint Noise from area of instrument panel Noise might occur in the following conditions: - At engine speeds of 1500 rpm to 2000 rpm. - In the speed range up to 45mph - Type of …LI68.10-P-070572 · Technical service bulletin · Structure · issued Jan 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 Jan 24, 2025
- Complaint Sliding sunroof panel of panoramic sliding sunroof reverses (temporarily, once, multiple times) during closing process without entrapment event: a) from tilt position b) …LI77.21-P-075807 · Technical service bulletin · Structure · issued Jan 23, 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 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 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 Jan 15, 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 Customer states CEL is on. Cause Quick test shows FC P0A7F00 The state of health limit of the hybrid/high-voltage battery module has been reached. No drivability concerns…LI54.10-P-077250 · Technical service bulletin · Electrical System · issued Dec 11, 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
- 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 The flap of the reversing camera opens and closes by itself during forward travel. This happens several times during the trip. The customer notices the sound of opening a…LI54.65-P-066284 · Technical service bulletin · Electrical System · issued Nov 25, 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 Paint damage on door paneling in area of door handle (see picture 1). Cause Possible tolerance complaint regarding the door handle Remedy 1. Paint the affected area of th…LI72.00-P-071544 · Technical service bulletin · Structure · issued Nov 16, 2024
- Complaint • Transfer of selected user-defined scene/ animation (Mercedes-Benz Phone App) from HU to ECU software fails to start. • Charging bar stops at 0%. (Picture in attachment)…LI82.10-P-078107 · Technical service bulletin · Exterior Lighting · issued Nov 13, 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 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 Check engine light on. One of the below fault codes is current in the engine control module (N3/10). P04DB29, P04DB31, P04DB79 Cause Open circuit or high resistance to cr…LI01.20-P-078446 · Technical service bulletin · Electrical System · issued Oct 4, 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 Check engine light on. Fault code P207273 - "Throttle actuator valve is blocked due to ice" stored. Engine may crank and not start. Fault code P210185 may also be stored.…LI07.70-P-078078 · Technical service bulletin · Engine · issued Sep 16, 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 Headlamps fogged or droplets forming. Cause Due to the housing cover with pressure compensation diaphragm, the headlamps are a "closed system". This means that the headla…LI82.10-P-078304 · Technical service bulletin · Exterior Lighting · issued Sep 9, 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
- Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY21-24 C-Class (206 platform), EQE (294 and 296 platform), EQS (295 and 297 p…OTA - 20240830 · Technical service bulletin · Electrical System · issued Aug 30, 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 Yellow Coolant warning comes on in cluster Fault codes below are current or stored in MED41 P0A0500- The actuation of the circulation pump for the low-temperature circuit…LI20.00-P-074205 · Technical service bulletin · Engine · issued Jul 20, 2024
- Complaint Check engine light on and fault code P019185 current or stored in MED41 control unit. Adaptation and misfire faults may also be stored. Vehicle may enter limp home mode. …LI07.70-P-078047 · Technical service bulletin · Engine · issued Jul 17, 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 Noticeable vibrations at the steering wheel: • At speeds between 40mph and 75mph • On straight stretches of road and in long corners • With driver assistance systems swit…LI46.35-P-073051 · Technical service bulletin · Steering · issued Jun 12, 2024
- Complaint The driver's seat memory settings do not synchronize with the driver's user profile as described in the operator's manual. Driver's seat settings are not transferred to t…LI82.85-P-070742 · Technical service bulletin · Electrical System · issued Jun 6, 2024
- Complaint Noticeable vibrations at the steering wheel: • At speeds between 40mph and 75mph • On straight stretches of road and in long corners • With driver assistance systems swit…LI46.35-P-073051 · Technical service bulletin · Electrical System · issued May 8, 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
- 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. Remedy As…LI72.20-P-075746 · Technical service bulletin · Structure · issued Mar 11, 2024
- ï · Always use the latest XENTRY Diagnosis software release with all available add-ons. ï · Make sure to follow the operation steps exactly as described in XENTRY Diagnosis. ï · Us…NCU - 2024020008 · Technical service bulletin · Electrical System · issued Mar 1, 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 · Equipment · issued Feb 23, 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
- 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
- Mercedes-Benz AG (â  MBAGâ  ), the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY21-23 C-Class, EQS, S-Class, SL, EQE, GLC (206, 296, 297, 223, 232…NCU -MBUX SW OTA · Technical service bulletin · Electrical System · issued Oct 20, 2023
- Wheezing noises from the front shock absorbers when passing over surface undulations and rough road. The noises may become more conspicuous with warm damper oil. The flow noises of…LI32.25-P-076956 · Technical service bulletin · Suspension · issued Oct 12, 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
- Sliding sunroof panel of panoramic sliding sunroof reversed (temporarily, once, multiple times) during closing process without entrapment event. Sensitive parameterization of the a…LI77.21-P-075807 · Technical service bulletin · Visibility · issued Oct 2, 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
- 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). In the HERMES control…LI82.85-P-076799 · Technical service bulletin · Equipment · issued Aug 18, 2023
- Noise at front seats between seat-back lining and function carrier. Noise is caused by friction of the two component parts. Remove the seat-back lining (back panel) of the front se…LI91.10-P-076798 · Technical service bulletin · Seats · issued Aug 18, 2023
- Perceptible volume jumps at 15 and 10 mph. When reducing the speed of the vehicle, the volume is reduced in clearly perceptible jumps. This is particularly perceptible at a moderat…LI82.62-P-076756 · Technical service bulletin · Equipment · issued Jul 28, 2023
- Check engine lamp activated, coolant warning message, and engine fan running at full speed. Below fault codes stored in N127 PTCU related to LIN network components. U063200, U06328…LI20.00-P-076708 · Technical service bulletin · Electrical System · issued Jul 24, 2023
- Mercedes-Benz AG (â MBAGâ ), the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY 2021-2024 C-Class, EQE, EQE SUV, EQS, EQS SUV, GLC, GLE and S-Class (206,…NCU - HU Update · Technical service bulletin · Electrical System · issued Jul 19, 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, 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
- Complaint - AIRMATIC fault message in instrument cluster - Compressor inoperative, 40A compressor fuse possibly triggered. - Vehicle level is not adjusted correctly, the vehicle po…LI32.33-P-070817 · Technical service bulletin · Suspension · issued Jan 9, 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 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 Staining on door trim strips and top and bottom trim elements on rear side windows Cause Damage to protective coating (due to poor original optimization of coating) of do…LI72.00-P-075481 · Technical service bulletin · Structure · issued Nov 17, 2022
- Complaint 1. Vibrations noticeable at steering wheel when front axle is excited when driving at a speed between 65 km/h and 130 km/h over an obstacle. â ¢ Driving over deeply reces…LI46.35-P-062791 · Technical service bulletin · Steering · issued Nov 7, 2022
- Complaint Staining on door trim strips and top and bottom trim elements on rear side windows Cause Damage to protective coating of door beltline trim strips, door upper trim strips…LI72.00-P-075481 · Technical service bulletin · Structure · issued Oct 24, 2022
- Complaint Malfunction of the electric steering column adjustment. The adjustment application by the driver does not correspond to the adjustment direction of the steering column. C…LI46.15-P-075284 · Technical service bulletin · Steering · 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 In an initial quick test, DTC B238A00 "Fan 2 of the control unit has malfunctioned" may be active and/or stored in the MBUX Multimedia System (A26/17) Cause Curre…LI82.85-P-075223 · Technical service bulletin · Electrical System · issued Aug 26, 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 · Electrical System · issued Jul 14, 2022
- Complaint Thumping noise on rear axle shock absorber on rough road. Cause Until now the rear axle shock absorber support bushing was only available together with the rear axle shoc…LI32.25-P-066246 · Technical service bulletin · Equipment · issued Jul 11, 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
- Complaint 1. Vibrations noticeable at steering wheel when front axle is excited when driving at a speed between 65 km/h and 130 km/h over an obstacle. â ¢ Driving over deeply reces…LI46.35-P-062791 · Technical service bulletin · Steering · issued Jun 13, 2022
- Complaint 1. Vibrations noticeable in steering wheel when front axle is excited while driving at a speed above 40 mph over an obstacle. â ¢ Driving over deeply recessed manhole cov…LI46.35-P-062791 · Technical service bulletin · Steering · issued Apr 29, 2022
- Mercedes-Benz AG (â MBAGâ ), the manufacturer of Mercedes-Benz, has determined that certain MY 2021-2022 CLA-Class, A-Class, CLS-Class, E-Class, GLA-Class, GLB-Class, GLC-Class (11…SC- 2022030017 · Technical service bulletin · Electrical System · issued Apr 27, 2022
- Complaint Fault message (yellow) in instrument cluster and TPM warning lamp. Individual or all tire pressure sensors are not recognized. Tire pressure monitoring system nonfunction…LI40.15-P-074659 · Technical service bulletin · Wheels · issued Apr 1, 2022
- 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 Mar 31, 2022
- Complaint The following complaints may be noted by the customer: â ¢ Upon selecting navigation, the central display may show the following message: "Map data does not match with yo…LI82.85-P-069961 · Technical service bulletin · Electrical System · issued Feb 24, 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
- Complaint The garage door hand transmitter cannot be initialized with the integrated garage door opener in the inside rearview mirror. Cause 1. The integrated garage door opener (G…LI68.05-P-060306 · Technical service bulletin · Electrical System · issued Jan 27, 2022
- 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 …LI68.05-P-060307 · Technical service bulletin · Electrical System · issued Jan 9, 2022
- Complaint Seat heating on driver's seat and front passenger seat nonfunctional. The LEDs on the switches for the seat heating illuminate, but the seat heating mats do not get warm.…LI91.30-P-073902 · Technical service bulletin · Electrical System · issued Jan 4, 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
- MBUX multimedia system: Map data does not match with your system/the navigation system cannot be activatedLI82.85-P-06996 · Technical service bulletin · Equipment · issued Dec 2, 2021
- Upon selecting navigation, the central display may show the following message: "Map data does not match with your system. Please insert a medium containing the corresponding map da…LI8285P069961 · Technical service bulletin · Equipment · issued Aug 30, 2021
- The mobile phone address book may not be transferred completely to the multimedia system COMAND, Audio 20, or MBUX. The contact list may not be fully populated and in some instance…LI8270P071024 · Technical service bulletin · Equipment · issued Aug 27, 2021
- On vehicles with code 077 HERMES dummy module the following functions are restricted, unavailable.LI8285P073418 · Technical service bulletin · Electrical System · issued Aug 24, 2021
- Fuel filler flap opens slowly/switch flashes/tank is bleeding instrument cluster warningLI8860P073470 · Technical service bulletin · Fuel System, Gasoline · issued Aug 11, 2021
- The customer may note that the Dashcam feature is inoperable with one of the following complaints.LI8285P073387Ver · Technical service bulletin · Equipment · issued Aug 9, 2021
- The customer may note that the Dashcam feature is inoperable with one of the following complaints.LI8285P073387Ver · Technical service bulletin · Equipment · issued Aug 3, 2021
- The customer may note that the Dashcam feature is inoperable with one of the following complaints:LI8285P073387Ver · Technical service bulletin · Equipment · issued Aug 2, 2021
- Vehicle does not start after charging processLI4770P073121 · Technical service bulletin · Engine · issued Jun 4, 2021
- Remote start causing CEL and U012600.LI2700P073106 · Technical service bulletin · Electrical System · issued May 25, 2021
- Navigation system permanently displays "Activating".LI8285P0633424 · Technical service bulletin · Equipment · issued Nov 29, 2016
- Reset the customer-specific data and perform a software update of the AUDIO20 control unit.LI8285P0602587 · Technical service bulletin · Equipment · issued Aug 29, 2016
- Traffic information service and posibly the voice control, nonfunctional after navigation software update.LI8285P0647651 · Technical service bulletin · Equipment · issued Aug 25, 2016
- Navigation system permanently displays "Activating".LI8285P0633423 · Technical service bulletin · Equipment · issued Aug 25, 2016
- CD/DVD No longer ejected or drawn in.LI8260P0646761 · Technical service bulletin · Equipment · issued Aug 15, 2016
- High voltage battery warning message in instrument cluster.LI8370P0644803 · Technical service bulletin · Electrical System · issued Aug 11, 2016
- Gasket may settle causing a slight oil leak.LI1830P0597123 · Technical service bulletin · Unknown / Other · issued Aug 5, 2016
- Operation complaints for LED headlamps.LI8210P0638372 · Technical service bulletin · Exterior Lighting · issued Aug 1, 2016
- Noises when opening and closing automatic liftgate.LI7220P056907 · Technical service bulletin · Structure · issued Jul 30, 2013