Mercedes-Benz GLC-Class Service Bulletins

657 manufacturer communications on file.

• December 6, 2025•Document ID: 11026595

  Service Bulletin/Repair Instructions
  SUSPENSION

  Mfr Comm. #:

  LI46.80-P-080054

  Date Added:

  December 12, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint An instrument cluster message "Rear axle steering fault, stop immediately" is very briefly illuminated in the instrument cluster upon vehicle start-up, prior to driving. No fault codes stored in the rear axle steering control unit N68/4. Cause Asynchronous start-up of control units in the vehicle. Remedy The message clears once the head unit receives the rear axle steering signal. Perform a software update to A26/17 control unit - MBUX multimedia system + instrument cluster (head unit) CIVIC206; the software version must be at least 333.8. NOTE: To verify the head unit is on the correct software version: • Navigate to A26/17 (Head Unit) Control Unit Log. • Locate "Control Unit Specific Data" near the bottom. • Verify "E-Stand" number is at least 333.8.

  Associated Products (10)

  2026 Mercedes-Benz GLC-Class2025 Mercedes-Benz CLE2025 Mercedes-Benz E-Class2025 Mercedes-Benz GLC-Class2024 Mercedes-Benz CLE2024 Mercedes-Benz E-Class2024 Mercedes-Benz GLC-Class2023 Mercedes-Benz CLE2023 Mercedes-Benz E-Class2023 Mercedes-Benz GLC-Class
  Associated Documents

  • DownloadMC-11026595-0001.pdf↗
• December 3, 2025•Document ID: 11026127

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  LI82.85-P-080094

  Date Added:

  December 4, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint Displayed Message: “Driver camera not functioning, see Operator’s Manual” Cause Interior temperature too high due to: • Summer heat • Direct sunlight • Lack of air conditioning or ventilation Camera enters self-protection mode to prevent overheating. Remedy Do NOT replace any parts. The driver camera (NTG7: MDC295; CIVIC.i2: CIVIC206) is operating as designed. Allow the interior to cool down. If the message remains after cooling: • Run XENTRY Diagnosis • Check latest software for Actuation of Driver Camera (A26/17) No TIPS case required.

  Associated Products (54)

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  Associated Documents

  • DownloadMC-11026127-0001.pdf↗
• November 20, 2025•Document ID: 11025655

  Service Bulletin/Repair Instructions
  SERVICE BRAKES

  Mfr Comm. #:

  LI42.10-P-078875

  Date Added:

  November 21, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint Squeal from brakes at low speeds in forward and reverse. Cause Frictional vibrations between brake pad and brake disc. Remedy New pads are available, A 000 421 7902. If new pads are not available, please use the below method until such time they are. Chamfer pads according to attached picture. The pads have a pre-installed adhesive on the pad backing where the pistons contact the back of the brake pad, remove this adhesive. Apply copper paste to areas according to attached picture (both where the pistons contact the backing plate and around the edges of the backing plate as shown). Follow step 3 of LI42.10-P-063502 for brake bedding procedure.

  Associated Products (1)

  2025 Mercedes-Benz GLC-Class
  Associated Documents

  • DownloadMC-11025655-0001.pdf↗
• November 18, 2025•Document ID: 11025646

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  LI68.20-P-080012

  Date Added:

  November 19, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint USB port not functioning properly. Cause Most reported USB port issues are due to improper use or contamination. Note: Any repair costs must be discussed with the customer beforehand. Common external factors identified include: • Fluid intrusion • Broken bushings or physical damage See attachments. Remedy If a component needs replacement but shows no visible external damage, submit a detailed TIPS case only when technical support is required. Include details of all connected external devices (such as charging cables, USB drives, and hard drives). If diagnostic results directly indicate component replacement, a TIPS case is not necessary.

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  Associated Documents

  • DownloadMC-11025646-0001.pdf↗
• November 17, 2025•Document ID: 11025560

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  LI27.60-P-079967

  Date Added:

  November 17, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  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 versions. Remedy Update Transmission Software (VGSNAG3). 1. Perform IPR and update transmission control unit software - see list of new software numbers below A0009027479 A0009027579 A0009027779 A0019026209 A0019025909 A0019025809 A0019025609 A0019024809 A0019024309 A0019024709 After updating the software, isolated/intermittent instances of the concern may occur. 2. Perform a standstill adaptation and reevaluate concern. The vehicle can be released if no longer present

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  Associated Documents

  • DownloadMC-11025560-0001.pdf↗
• November 15, 2025•Document ID: 11025648

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  LI33.30-P-056665

  Date Added:

  November 20, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  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 (and vice versa). Note: Sound file in attachment Cause If the complaint is eliminated by experimentally loosening the outboard collar nut (by 1 turn), the problem is due to micromovement in the connection between the wheel bearing inner race and the joint housing of the side shaft. Note: The collar nut must always be replaced after being loosened and must be tightened to the specified torque. Remedy Coat contact surface of side shaft with wheel bearing with Molykote paint. To do this, proceed as follows: 1. Remove outboard side shafts (extract outer joint gearing from wheel hub) 2. Clean contact surface A (see picture file in attachment "Outer joint housing before") before coating with Molykote, using "spirit" (free of dust and grease) 3. Coat contact surface A (see image file in attachment "Outer joint housing after") using Molykote and leave to dry for one hour in removed condition 4. Reinstall side shafts Note: Before using the antifriction coating (Molykote), stir or shake it well (for at least 1 minute).

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  Associated Documents

  • DownloadMC-11025648-0001.pdf↗
• November 10, 2025•Document ID: 11025471

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  LI27.35-P-079971

  Date Added:

  November 11, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  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 replacement of the below components: - The electrohydraulic control unit (EHS valve body) in transmission 725.0/725.1 - The repair kit for the control unit (VGS) in transmission 725.0 Cause Missing, incorrectly installed, or damaged guide tubes on the EHS valve body. Remedy Check for the correct installation of the guide tubes (refer to attachments under “Cause”), correct installation if necessary. Parts Catalog References: NAG3M 725.1 AND NAG3C 725.0 (AMG only): Part numbers 100, 120, 150, 160 NAG3C 725.0 (Non AMG): Part numbers 280, 290, 330, 340 NOTE: If any of these guide tubes are not installed and the vehicle is driven, it will create several rinse and slipping events in the EEPROM data. These values caused by incorrect installation need to be erased to prevent future misdiagnosis. Submit a TIPS case to the Powertrain inbox with the following to receive the necessary reset password: - Initial Quick Test w/ Freeze frame data - VGS Control Unit Log - IPR Result - Initial EEPROM data (before repairs) - Latest EEPROM data - Photo of oil level ultrasonic measurement next to XENTRY specifications Please provide detail regarding the reasoning for the initial replacement in your workshop findings and measures performed. (This topic was covered in the July 2022 and July 2024 Passenger Car Tech Topics)

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  Associated Documents

  • DownloadMC-11025471-0001.pdf↗
• November 6, 2025•Document ID: 11025544

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  LI68.20-P-080012

  Date Added:

  November 14, 2025

  Manufacturer:

  MERCEDES BENZ

  Summary

  Complaint USB port not functioning properly. Cause Most reported USB port issues are due to improper use or contamination. Note: Any repair costs must be discussed with the customer beforehand. Common external factors identified include: • Fluid intrusion • Broken bushings or physical damage See attachments. Remedy If a component needs replacement without visible external damage, submit a detailed TIPS case. Include information on all connected external devices (e.g., charging cables, USB drives, hard drives).

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  Associated Documents

  • DownloadMC-11025544-0001.pdf↗
• November 5, 2025•Document ID: 11025536

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  LI27.60-P-079969

  Date Added:

  November 14, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint Harsh 2-1 downshifts when coming to a stop with ECO start-stop function turned OFF. Note: When ECO start-stop is active, the engine is shut off before the 2-1 shift and the complaint will not occur. Cause Software application when engine is running. Remedy Short-term remedy: Perform IPR and follow the instruction to perform standstill adaptations. Long-term Solution: Aftersales software is currently in development. NOTE: The information contained in this document is intended for use by trained, professional technicians with the knowledge to properly and safely perform diagnosis and repairs on Mercedes-Benz vehicles, using Mercedes-Benz approved tools and equipment. It informs service technicians about conditions that could occur in certain vehicles and provides information that could assist in proper vehicle diagnosis, service, or repair. It does not indicate that a defect is present in any vehicle referenced in this document nor does it imply warranty coverage. DO NOT assume that a symptom or condition, or a described cause of a symptom or condition, affects any particular vehicle or groups of vehicles, or that a described repair applies to any particular vehicle or groups of vehicles. There can be multiple causes resulting in the same or similar symptoms or conditions described in this document, and trained professional service technicians must use their diagnostic skills to make evaluations on a case-by-case basis. The information contained in this document does not guarantee warranty coverage nor does it extend the vehicle’s warranty in any way.

  Associated Products (11)

  2026 Mercedes-Benz GLC-Class2025 Mercedes-Benz C-Class2025 Mercedes-Benz E-Class2025 Mercedes-Benz GLC-Class2024 Mercedes-Benz C-Class2024 Mercedes-Benz CLE2024 Mercedes-Benz E-Class2024 Mercedes-Benz GLC-Class2023 Mercedes-Benz C-Class2023 Mercedes-Benz GLC-Class2022 Mercedes-Benz C-Class
  Associated Documents

  • DownloadMC-11025536-0001.pdf↗
• November 5, 2025•Document ID: 11025150

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  LI27.60-P-079968

  Date Added:

  November 7, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint A harsh 5-4 downshift can be felt during deceleration while braking or coasting. It may be mistaken for a hard brake engagement Cause Poor learning of brake B06 adaptation values over time. Remedy Short-term remedy: 1. Perform IPR and follow the instructions. 2. Perform resetting of deceleration values (VGS > Special Procedures > Special procedure > Resetting learned values Deceleration mode) 3. Perform standard adaptation 4. Reevaluate the concern and release vehicle if no longer present Note: ALL steps (resetting learned values and standard adaptation) must be completed to fully resolve the complaint. Long-term measure: Aftersales software is currently in development.

  Associated Products (19)

  2026 Mercedes-Benz GLC-Class2025 Mercedes-Benz C-Class2025 Mercedes-Benz E-Class2025 Mercedes-Benz GLC-Class2025 Mercedes-Benz GLE-Class2024 Mercedes-Benz C-Class2024 Mercedes-Benz CLE2024 Mercedes-Benz E-Class2024 Mercedes-Benz GLC-Class2024 Mercedes-Benz GLE-Class2023 Mercedes-Benz C-Class2023 Mercedes-Benz CLE2023 Mercedes-Benz E-Class2023 Mercedes-Benz GLC-Class2023 Mercedes-Benz GLE-Class2022 Mercedes-Benz C-Class2022 Mercedes-Benz GLE-Class2021 Mercedes-Benz GLE-Class2020 Mercedes-Benz GLE-Class
  Associated Documents

  • DownloadMC-11025150-0001.pdf↗
• November 3, 2025•Document ID: 11025100

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  LI27.10-P-075869

  Date Added:

  November 6, 2025

  Manufacturer:

  MERCEDES-MAYBACH

  Summary

  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, vibrations or jolting sensation may come from the drivetrain. It may be mistaken for a harsh shift. Cause Modified oil quality of the transfer case over time Remedy 1. Check initial quick test for faults in the following control units. N45 or N15/7 - All-wheel drive (ARS) N127 - 'Drivetrain' (PTCU) control unit Y3/8 - Transmission control for 9-gear transmission (VGS) N3/10 - Engine electronics for combustion engine If faults are present: Process them as per the guided test in Xentry. If no faults are present: 2. Check the transmission oil level If the oil level is correct: 3. Unplug the connector for the transfer cases control unit and reassess the vehicle on a subsequent test drive If the complaint no longer occurs with the control unit disconnected: 4. Perform an oil change of the transfer case according to WIS specifications - Collect an oil sample of the original fluid 5. Complete all transfer case Tech-in processes located under VG Control Unit > Adaptations - Resetting the oil service data - Calibration of N15/7 5. Perform road test of vehicle to bring transmission to operating temperature ( >60C ) 6. Operate vehicle in full circle with steering at full lock - 5x to the left - 5x to the right 7. Perform an extended 200mi road test to ensure the clutches are properly conditioned with the new oil. 8. Reassess the concern and release the vehicle if no longer present. If the concern continues to occur with the control unit disconnected or after the above steps have been performed, please submit a TIPS case to the Powertrain inbox with the following information: - Initial quick test with fault freeze frame data - Initial transmission EEPROM data - VGS and Transfer Case Control Unit Log (N45 or N15/7) - Photo of the original oil condition - What color was the fluid drained from the transfer case before the oil change? - Was an oil sample collected, and can you provide a photo of the original fluid? - What color and part number fluid was used during the oil change? - How far was the vehicle driven after?

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  Associated Documents

  • DownloadMC-11025100-0001.pdf↗
• October 28, 2025•Document ID: 11024631

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  LI20.10-P-074508

  Date Added:

  October 30, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint Check engine lamp illuminated. Fault code stored P012800-The coolant temperature is below the coolant thermostat specified temperature. Cause Various possible causes Remedy 1- Update HVAC with latest software 2- Perform guided test for fault P012800 and performed repairs per XENTRY diagnosis. - If thermostat requires replacement flush cooling circuit in both directions with 150L of water. MY 2020 GLC350e 253.953 only 3- Update the software of engine control unit N3/10. New version A2749022102 A2749032506. Note- If the guided test passes no repair should be performed. SW update for remaining hybrid models is in development for ME control unit to resolve this fault.

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  2020 Mercedes-Benz GLC-Class2019 Mercedes-Benz GLC-Class2018 Mercedes-Benz C-Class2018 Mercedes-Benz GLC-Class2017 Mercedes-Benz C-Class2016 Mercedes-Benz C-Class
  Associated Documents

  • DownloadMC-11024631-0001.pdf↗
• October 28, 2025•Document ID: 11024533

  Service Bulletin/Repair Instructions
  SUSPENSION

  Mfr Comm. #:

  LI42.10-P-078875

  Date Added:

  October 28, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint Squeal from brakes at low speeds in forward and reverse. Cause Frictional vibrations between brake pad and brake disc. Remedy New pads are available, A 000 421 790. If new pads are not available, please use the below method until such time they are. Chamfer pads according to attached picture. The pads have a pre-installed adhesive on the pad backing where the pistons contact the back of the brake pad, remove this adhesive. Apply copper paste to areas according to attached picture (both where the pistons contact the backing plate and around the edges of the backing plate as shown). Follow step 3 of LI42.10-P-063502 for brake bedding procedure.

  Associated Products (2)

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  Associated Documents

  • DownloadMC-11024533-0001.pdf↗
• October 28, 2025•Document ID: 11024506

  Service Bulletin/Repair Instructions
  SUSPENSION

  Mfr Comm. #:

  LI42.15-P-079899

  Date Added:

  October 28, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint Brake squeal on the front axle at slow speed and before coming to a stop. Cause Frictional vibrations Remedy Install new brake linings with Part number A 000 421 7902.

  Associated Products (8)

  2025 Mercedes-Benz GLC-Class2024 Mercedes-Benz GLC-Class2023 Mercedes-Benz GLC-Class2022 Mercedes-Benz GLC-Class2021 Mercedes-Benz GLC-Class2020 Mercedes-Benz GLC-Class2019 Mercedes-Benz GLC-Class2018 Mercedes-Benz GLC-Class
  Associated Documents

  • DownloadMC-11024506-0001.pdf↗
• October 27, 2025•Document ID: 11024502

  Service Bulletin/Repair Instructions
  SUSPENSION

  Mfr Comm. #:

  LI32.25-P-079707

  Date Added:

  October 27, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint Wheezing noises/squeaking noises from the front shock absorbers when passing over surface undulations and rough road. Noise MUST match those heard in the attached videos. Cause • Wheezing noises: Flow noises of the damper oil • Squeaking noises: From the mechanical rubber valve in the dividing piston Remedy In case of complaints, the front shock absorbers must be replaced with parts past clean point. • Part clean point is on or after April 2024. • When receiving new parts, check manufacture date (example shown below). • If parts were produced prior to the clean point date, do not install, return. If shocks have been replaced and noise persists, please open a TIPS case to the Body, Chassis, Entertainment inbox.

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  Associated Documents

  • DownloadMC-11024502-0001.pdf↗
• October 24, 2025•Document ID: 11024426

  Service Campaign
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  NCU - 2024090017

  Date Added:

  October 23, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain subject vehicles, the door control unit software does not correspond to current production specifications. In this case, the 12V starter battery may sporadically discharge. MBUSA will conduct a service campaign. An authorized Mercedes-Benz dealer will update the door control unit software.

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  Associated Documents

  • DownloadMC-11024426-0001.pdf↗
• October 20, 2025•Document ID: 11024405

  Service Bulletin/Repair Instructions
  SERVICE BRAKES

  Mfr Comm. #:

  LI42.10-P-079904

  Date Added:

  October 21, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint At low speeds and light brake pressure, brakes will make a groaning or honking noise. Cause Frictional vibrations with very light brake pressure/modulations. Remedy This condition can be duplicated on most vehicles. To validate, use a like for like reference vehicle. The noise is normal behavior under the conditions listed. With very light brake pressure this noise can be induced/caused due to normal brake pad and brake rotor vibrations. Exchanging brake components will not rectify.

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  Associated Documents

  • DownloadMC-11024405-0001.pdf↗
• October 14, 2025•Document ID: 11024358

  Service Bulletin/Repair Instructions
  WHEELS; SUSPENSION

  Mfr Comm. #:

  LI40.10-P-059248

  Date Added:

  October 17, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint Crackling and cracking noise from the outer wheel on the front axle when cornering Cause The noise is generated by a micromovement on the contact surface between the rim and the brake disk (wheel bolt group) and may be intensified by potential soiling. The more lightweight rim (AMG forged rim) transmits the noise louder; in the case of cast rims, the noise is generally not perceptible. This is not a technical defect, but rather a complaint concerning comfort. Safe operation of the vehicle is ensured at all times. Remedy Important note: The operations described below do not represent a permanent remedy in every case. The noise may reoccur again after an indefinite period of time; sanding the rims with abrasive media multiple times is not permissible. Only cleaning using the Hazet tool 4960-160 (recommendation) can be performed without any concerns each time the wheel is changed or if the complaint reoccurs. Replacing the parts (rim, wheel bolts, wheel bearings, wheel hub, brake disk) is not expedient in the event of this complaint. Clean the components of the wheel bolt connection according to the WIS instructions Sand down the rim and brake disk bowl by performing the following steps: • Manually sand rim (old design only) in area of water drain bores (Figure 1; item A), approx. 1.5 cm left and right of water drain bore (Figure 2) Note: Use abrasive paper with grit size 80. The grooving in this area should no longer be visible (sand down approx. 0.1-0.2mm) • Also sand brake disk bowl using emery cloth or abrasive paper with a grain size of 120 • For vehicles equipped with the AMG ceramic brake system (B07), abrasive paper may not be used for cleaning on the brake disk side Note: Do not use any cleaning agent when cleaning on the rim side. Cleaning using abrasive paper with a grain size of 80 will suffice. Do not apply any grease, lubricant or paste after cleaning The brake disk bowl should be "bare metal" in the area of the imprints made by the hole (Figure 3)

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  Associated Documents

  • DownloadMC-11024358-0001.pdf↗
• October 10, 2025•Document ID: 11024276

  Service Bulletin/Repair Instructions
  SEATS

  Mfr Comm. #:

  LI91.10-P-078305

  Date Added:

  October 14, 2025

  Manufacturer:

  MERCEDES-MAYBACH

  Summary

  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 HU7 to the latest software version, then perform a factory reset of the HU7. Steps to perform factory reset: Navigate to Settings > System > Reset > Reset to factory settings and confirm. If the problem persists, please record HU7 log and also a trace of the Body CAN (For Star 2 Body Can 1 and for Star 3 Body Can 2) during the symptom and send via a TIPS case to the Telematics team. Note: Only collect and submit the log and trace if the symptom can be reliably reproduced.

  Associated Products (37)

  2026 Mercedes-Benz GLC-Class2025 Mercedes-Benz C-Class2025 Mercedes-Benz CLA-Class2025 Mercedes-Benz GLB-Class2025 Mercedes-Benz GLC-Class2025 Mercedes-Benz GLE-Class2025 Mercedes-Benz GLS-Class2024 Mercedes-Benz C-Class2024 Mercedes-Benz CLA-Class2024 Mercedes-Benz GLB-Class2024 Mercedes-Benz GLC-Class2024 Mercedes-Benz GLE-Class2024 Mercedes-Benz GLS-Class2023 Mercedes-Benz C-Class2023 Mercedes-Benz CLA-Class2023 Mercedes-Benz GLB-Class2023 Mercedes-Benz GLC-Class2023 Mercedes-Benz GLE-Class2023 Mercedes-Benz GLS-Class2022 Mercedes-Benz A-Class+ 17 more
  Associated Documents

  • DownloadMC-11024276-0001.pdf↗
• October 7, 2025•Document ID: 11024178

  Service Bulletin/Repair Instructions
  BACK OVER PREVENTION: WARNINGS

  Mfr Comm. #:

  LI54.70-P-079322

  Date Added:

  October 8, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint Red park ring around vehicle without anything in proximity. Consistently reproducible. No DTC in the PARK control unit. Vehicle is a GLC 254 OR 2024 or later 167 GLE/GLS with exterior AMG line (option codes 772 & P31). Cause 254 GLC models or facelifted 167 GLE/GLS models (model year 2024 and on) have a re-designed front AMG bumper. Sensor position 2 and 5, front bumper park ultrasonic sensors ("USS") are occasionally interpreting the AMG bumper overhang as an object in immediate proximity or is detecting as implausible data. When this occurs, the red ring will activate in the head unit. NOTE: Other reasons can also induce the "red ring". Since current park sensor stock is still mixed "Q" levels, it is recommended to verify the concern prior to ordering and replacing. See Remedy section for verification. Remedy Verify concern is rectified via the felt tape method prior to ordering new park sensors. See attachment "Felt Tape Verification" for location of modification. Recommended felt tape part number is A0009838910 and needs to be applied to both left and right side of the vehicle. Fixes Concern: Remove the felt tape and order 2 sensors for the vehicle from the below part numbers that are applicable to the subject vehicle. Please note that if the sensors removed from the vehicle are from when it was built, the aftersales part numbers will be different, please check EPC. Valid part numbers are listed below. Replace only sensor position 2 and 5 (see attachment "Park Sensors to be Replaced"). To get the proper "Q" level sensors: 1. Check parts in current dealer inventory. Recommend to separate stock at dealer level between Q7 and earlier variants. To identify the Q level of the part, see picture "Distance Sensor Q Level". 2. If proper Q level is not found in inventory and parts need to be ordered, please order a few extras to get Q7 level. Parts that are non-Q7 are still valid for other repairs outside of this concern. 3. If dealer does not receive a Q7 sensor in their first order, please open a Star Support Ticket. Part Numbers: • A2239050005 9999 Q07 • A2239054000 9999 Q07 Does NOT Fix Concern: Please perform additional diagnostics or open a TIPS case to the Body, Chassis, Entertainment inbox.

  Associated Products (4)

  2025 Mercedes-Benz GLC-Class2025 Mercedes-Benz GLS-Class2024 Mercedes-Benz GLC-Class2024 Mercedes-Benz GLS-Class
  Associated Documents

  • DownloadMC-11024178-0001.pdf↗