2018 Mercedes-Benz GLC 300 service bulletins & manufacturer communications
205 manufacturer communications are on file with NHTSA for the 2018 Mercedes-Benz GLC 300. TSBs are repair guidance for dealers — they are not recalls, and repairs are not automatically free.
Technical service bulletin 195Warranty extension 8Service campaign 2
- Complaint During part of the steering movement, it feels heavier or more difficult to steer in the same spot every time. OR Rattling, humming, dry sliding/gravel noise from the ele…LI46.35-P-067339 · Technical service bulletin · Steering · issued Aug 28, 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 · Structure · issued Aug 24, 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 - Tank Leak Detection · Warranty extension · Fuel/propulsion System · issued Aug 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 Aug 12, 2026
- 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 Aug 6, 2026
- 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 Aug 6, 2026
- Complaint This document is intended as a pre-case diagnostic reference for transmission related concerns. It will also ensure that if a case is necessary, all supporting documentat…LI27.00-P-075630 · Technical service bulletin · Power Train · issued Aug 5, 2026
- Complaint Mercedes-Benz USA is currently experiencing limited availability of transmission fluid specification ATF 236.17 due to a global supply constraint. 236.17 ATF 1L and 5L (P…LI27.00-P-080840 · Technical service bulletin · Power Train · issued Aug 4, 2026
- 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 · Back Over Prevention · 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 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 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 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 · 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 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 · Back Over Prevention · issued Jan 30, 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 Possible humming noises from the drivetrain in the area of the rear axle, especially during tight cornering in the lower speed range. Remedy Note: Please follow the instr…LI35.31-P-066469 · Technical service bulletin · Power Train · issued Sep 10, 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
- 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 · 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 Check engine light illuminated Fault code stored in N3/10 control unit- P052E71 – Positive Crankcase Ventilation Regulator Valve Performance: The valve for crankcase vent…LI01.20-P-076894 · Technical service bulletin · Engine · 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 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 · Electrical System · issued Mar 18, 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 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-073141 · Technical service bulletin · Structure · issued Mar 11, 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
- 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
- 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 Paint damage on door paneling in area of door handle (see picture 1). Cause Alignment of door handle bearing bracket is not correct. Remedy 1. Paint the affected area of …LI72.00-P-071544 · Technical service bulletin · Structure · 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 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
- 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
- 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 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 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 · Engine · 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 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 Model Year (“MY”) C-Class, E-Class, S-Class, G-Class, CL, CLS, ML, GL, GLE, GL…NCU - 2022080005 · Service campaign · Electrical System · issued Aug 10, 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 …CL-Intake Line Assembly · Technical service bulletin · Engine · issued Aug 9, 2024
- In our continuing efforts to ensure the proper performance and quality of your vehicle, we are writing to inform you that on certain Model Year 2011-2018 C-Class, E-Class, S-Class,…CL - 2022080005 · Technical service bulletin · Engine · issued Aug 9, 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
- This NCU replaces the prior NCUs issued on August 25, 2023, August 31, 2023 respectively and, contains clarification on parts ordering. In our continuing efforts to assure the prop…EW - Intake Line Assembly · Warranty extension · Engine · issued Jul 9, 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 Check engine light illuminated Fault code stored in N3/10 control unit- P052E71 – Positive Crankcase Ventilation Regulator Valve Performance: The valve for crankcase vent…LI01.20-P076894 · Technical service bulletin · Engine · issued Jul 8, 2024
- Complaint Check engine light illuminated Fault code stored in N3/10 control unit- P052E71 – Positive Crankcase Ventilation Regulator Valve Performance: The valve for crankcase vent…LI01.20-P-076894 · Technical service bulletin · Engine · issued May 14, 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 May 8, 2024
- Check engine light illuminated Fault code stored in N3/10 control unit- P052E71 Positive Crankcase Ventilation Regulator Valve Performance: The valve for crankcase ventilation has …LI01.20-P-076894 · Technical service bulletin · Engine and Engine Cooling · issued Apr 15, 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
- 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
- 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
- In our continuing efforts to assure the proper performance of Mercedes-Benz products and to enhance the satisfaction of our customers, Mercedes-Benz USA, LLC (MBUSA) is extending t…NCU-EW Pressure · Technical service bulletin · Fuel System, Gasoline · issued Jan 18, 2024
- 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
- 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
- In our continuing efforts to assure the proper performance of Mercedes-Benz products and to enhance the satisfaction of our customers, Mercedes-Benz USA (â MBUSAâ ) is extending th…ELW -Intake Line · Technical service bulletin · Engine and Engine Cooling · issued Sep 22, 2023
- Check engine light illuminated Fault code stored in N3/10 control unit- P052E71 â Positive Crankcase Ventilation Regulator Valve Performance: The valve for crankcase ventilation ha…LI01.20-P-076894 · Technical service bulletin · Engine and Engine Cooling · issued Sep 12, 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
- In our continuing efforts to assure the proper performance of Mercedes-Benz products and to enhance the satisfaction of our customers, Mercedes-Benz USA, LLC (â MBUSAâ ) is extendi…ELW- Intake Line · Technical service bulletin · Engine and Engine Cooling · issued Aug 24, 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
- Mercedes-Benz AG (â MBAGâ ), the manufacturer of Mercedes-Benz, has determined that on certain Model Year (â MYâ ) 2016 â 2021 C-Class (205 platform), E-Class (213 platform) and GL…NCU-2023060003 · Technical service bulletin · Visibility · issued Jun 15, 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 · Equipment · issued Jun 9, 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 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
- Dear Mercedes-Benz Owner: In our continuing efforts to assure the proper performance of Mercedes-Benz products and to enhance the satisfaction of our customers, Mercedes-Benz USA, …CL - Accelerator Pedal · Technical service bulletin · Vehicle Speed Control · issued Aug 27, 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
- Dear Mercedes-Benz Owner: In our continuing efforts to assure the proper performance of Mercedes-Benz products and to enhance the satisfaction of our customers, Mercedes-Benz USA, …CL - Accelerator Pedal · Technical service bulletin · Vehicle Speed Control · issued Aug 19, 2022
- In our continuing efforts to assure the proper performance of Mercedes-Benz products and to enhance the satisfaction of our customers, Mercedes-Benz USA, LLC (“MBUSA”) hereby notif…CL - Accelerator Pedal · Technical service bulletin · Vehicle Speed Control · issued Aug 19, 2022
- Dear Mercedes-Benz Owner: In our continuing efforts to assure the proper performance of Mercedes-Benz products and to enhance the satisfaction of our customers, Mercedes-Benz USA, …CL - Accelerator Pedal · Technical service bulletin · Vehicle Speed Control · issued Aug 13, 2022
- Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has extended the warranty for the accelerator pedal wiring harness and connectors from the original New Vehic…EW- Accelerator Wiring · Warranty extension · Vehicle Speed Control · issued Aug 5, 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 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 · Suspension · issued Jul 11, 2022
- Mercedes-Benz AG (â MBAGâ ), the manufacturer of Mercedes-Benz vehicles, has extended the warranty for the accelerator pedal wiring harness and connectors from the original New Veh…ELW-AccelPedal · Technical service bulletin · Electrical System · issued Jul 1, 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
- 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
- Mercedes-Benz AG (â MBAGâ ), the manufacturer of Mercedes-Benz, has determined that on certain MY 2015-2018 C-Class and GLC-Class (205 and 253 platform) vehicles, the software for …SC-202203005 · Technical service bulletin · Engine and Engine Cooling · issued Mar 11, 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
- 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 · Seats · 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 · Electrical System · 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
- This NCU replaces the prior NCU issued on July 30, 2021 and includes an additional population (33) of certain MY 2018 Baumusters covered under this extended warranty. Mercedes-Benz…EW-Low Pressure Fuel Hose · Warranty extension · Fuel/propulsion System · issued Aug 20, 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
- Launch EW NCU - Low Pressure Fuel Hose MY 15-17 205 213 253 172Launch EW NCU · Technical service bulletin · Fuel System, Gasoline · issued Jul 30, 2021
- Vehicle does not start after charging processLI4770P073121 · Technical service bulletin · Electrical System · issued Jun 4, 2021
- Remote start causing CEL and U012600.LI2700P073106 · Technical service bulletin · Engine and Engine Cooling · issued May 25, 2021
- For plug in hybrid and electric variants: Complaints about the electric rangeLI08.00-P-072749 · Technical service bulletin · Electrical System · issued Apr 20, 2021
- The following complaints may be noted by the customer: - The MBUX multimedia system (A26/17) starts route guidance without user input and does not provide any audio notification. -…LI82.85-P-069381 · Technical service bulletin · Electrical System · issued Jan 4, 2021
- This NCU replaces the prior NCUs issued on May 18, June 25, 2020 and October 1, 2020 and contains important workshop instructions on how the HVAC Service Warranty repair must be ca…EW - HVAC Service · Warranty extension · Visibility/wiper · issued Oct 29, 2020
- Cracking/Creaking Noises Coming From The Area Of The Mechanical Steering ColumnLI46.15-P-071669 · Technical service bulletin · Steering · issued Sep 16, 2020
- Mobile phone Apple iPhone 11/11Pro/11ProMax/SE 2020: The Bluetooth connection between the MBUX multimedia system and the mobile phone is briefly lostLI82.70-P-071372 · Technical service bulletin · Equipment · issued Aug 10, 2020
- Xentry Battery Tester results disagree with workshop assessmentLI54.10-P-071499 · Technical service bulletin · Electrical System · issued Aug 10, 2020
- Steering wheel heater and/or Distronic function limitedLI46.11-P-071594 · Technical service bulletin · Steering · issued Aug 7, 2020
- Incorrect time and/or instrument cluster message "SOS, service not activated" and/or Mercedes Me connect services nonfunctionalLI82.85-P-071453 · Technical service bulletin · Communication · issued Jul 31, 2020
- MBUX multimedia system: "Favorites" and "Recent destinations" not availableLI82.85-P-071529 · Technical service bulletin · Electrical System · issued Jul 23, 2020
- Fault code B223209 is logged in the parking control unitLI54.65-P-071267 · Technical service bulletin · Electrical System · issued May 21, 2020
- Event memory in the instrument cluster mileage readings intermittently inaccurateLI54.30-P-070902 · Technical service bulletin · Electrical System · issued Feb 19, 2020
- Information Label on Tire SealantP-SC-2020020001 · Technical service bulletin · Equipment · issued Feb 7, 2020
- Audible fan noise from area of center consoleLI82.85-P-070744 · Technical service bulletin · Equipment · issued Jan 14, 2020
- MBUX multimedia system: Mercedes-Benz service stations not available in Navigation menuLI82.85-P-070516 · Technical service bulletin · Equipment · issued Dec 23, 2019
- G-Class Facelift 2018: Fault message "ABS, ESP inoperative, see operator's manual"LI42.45-P-070437 · Technical service bulletin · Service Brakes · issued Oct 14, 2019
- Assessment of actuating and operating noise from steeringLI46 35-P-070153 · Technical service bulletin · Steering · issued Aug 19, 2019
- Outside mirror folding out/in nonfunctionalLI72 40-P-069934 · Technical service bulletin · Visibility · issued Jun 27, 2019
- MBUX multimedia system: No vehicle image in menu settingsLI82-85-P-069874 · Technical service bulletin · Equipment · issued May 30, 2019
- "High-voltage battery warning message" in instrument clusterLI83-70-P-064480 · Technical service bulletin · Electrical System · issued May 22, 2019
- Electric range is reduced after brief periodLI54-10-P-069831 · Technical service bulletin · Hybrid Propulsion System · issued May 21, 2019
- COMAND Online (code 531): Wrong date in system settings, incorrect time in instrument clusterLI82-85-P-069725 · Technical service bulletin · Electrical System · issued May 20, 2019
- Retrofit protective grille for additional coolerSC-2019040010 · Technical service bulletin · Engine and Engine Cooling · issued May 10, 2019
- Head-up display (HUD, code 463) - lines on the display, display flickersLI54-30-P-069742 · Technical service bulletin · Equipment · issued May 2, 2019
- The purpose of this letter is to advise you of additional benefits that Mercedes-Benz is providing to you regarding your vehicle ownership. What’s Included In our continuing effort…CL- Outside Temp EW · Technical service bulletin · Engine · issued Mar 20, 2019
- Daimler AG (“DAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on the various Model Year (“MY”) 2014 - 2018 Mercedes-Benz vehicles listed below, the engine con…EW- ECU Software · Warranty extension · Engine · issued Mar 13, 2019
- Audio 20: Playback stops when a track is changed.LI82 60-P-068381 · Technical service bulletin · Equipment · issued Jul 11, 2018
- Audio 20: SD card with audio files is not readLI82 60-P-068377 · Technical service bulletin · Equipment · issued Jul 10, 2018
- Update fuel system control unit (FSCU) softwareP-SC-2017080006 · Technical service bulletin · Fuel System, Gasoline · issued Mar 2, 2018
- Update HERMES control unit software2018010007 · Technical service bulletin · Electrical System · issued Feb 16, 2018
- Message "SOS - Service Not Activated" in instrument clusterLI82.85-P-067581 · Technical service bulletin · Electrical System · issued Jan 11, 2018
- Clock is slow in vehicles without navigationLI54.30-P-066875 · Technical service bulletin · Equipment · issued Dec 8, 2017
- LED light on thermal cup holder in rear passenger compartment of BR 222 flickersLI82 20-P-067107 · Technical service bulletin · Equipment Adaptive/mobility · issued Oct 5, 2017
- Partial operation of interior ambient lightingLI82 20-P-067044 · Technical service bulletin · Interior Lighting · issued Sep 19, 2017
- Brake squeal from front axle at low temperaturesLI42.10-P-065628 · Technical service bulletin · Service Brakes · issued Jan 30, 2017
- Perform SCN Coding in Transmission Control ModuleP-SC-2017010001 · Technical service bulletin · Power Train · issued Jan 11, 2017
- 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
- Rattling noises in area of 2-stage turbocharger, OM651LI09.40-P-064267 · Technical service bulletin · Power Train · issued Jun 13, 2016
- Vehicle wanders to the left or right.LI46.35-P-062292 · Technical service bulletin · Steering · issued Jun 10, 2016
- Headlamp lights up sporadicallyLI82.10-P-064172 · Technical service bulletin · Visibility · issued Jun 7, 2016
- Failure of stereo multifunction cameraLI54.00-P-064149 · Technical service bulletin · Equipment · issued May 23, 2016
- Vehicle cannot be unlocked/ vehicle does not start - starter battery dischargedLI54.10-P-060374 · Technical service bulletin · Electrical System · issued May 23, 2016
- Vehicle cannot be unlocked/ vehicle does not start - starter battery dischargedLI54.10-P-060374 · Technical service bulletin · Electrical System · issued May 13, 2016
- Brake squeal on front axle at low temperaturesLI42.10-P-063978 · Technical service bulletin · Service Brakes · issued May 2, 2016
- Noises when opening and closing automatic liftgate.LI7220P056907 · Technical service bulletin · Unknown / Other · issued Jul 30, 2013