Mercedes-Benz GLE-Class Service Bulletins

731 manufacturer communications on file.

• December 20, 2025•Document ID: 11026828

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  LI20.20-P-079938

  Date Added:

  December 24, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint Warning message "Performance limited" in the instrument cluster and vehicle has lack of acceleration. Cause - A too high Temp difference between M43/1 Pump Temp Sensor and Temp Sensor in Power Electronics. DTC P0A9300 is detected by too low flow rate in the low temperature circuit of the power electronics N147. - Possible Restriction in the low Temp coolant circuit NT1. The difference between the temperature sensors in the pump from low temperature circuit and in the power electronics are to big. If the difference is too big, DTC P0A9300 will be set in the power electronics. Remedy If DTC P0A9300 is present in N147: • Follow the guided test step for DTC P0A9300 in power electronics N147 • Ensure that all HV safety guidelines are being followed as per WIS and that the vehicle is powered down. • Replace Cooler low temperature LT1 (from cooling circuit of power electronics) • Replace oil cooler (which is mounted on the drive unit) • Replace the complete cooling fluid (G40) from all cooling circuits If DTC P0A9300 is not present in N147: • upload HV CUL (N147 CUL) to paperless • Open TIPS case and attach QT, HV CUL to the case

  Associated Products (4)

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  Associated Documents

  • DownloadMC-11026828-0001.pdf↗
• December 18, 2025•Document ID: 11026835

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  LI54.65-P-066284

  Date Added:

  December 24, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  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 reversing camera or the 360° system functions normally when activated manually or by engaging drive range "R". Cause This is not a malfunction, but an intended system behavior. Calibration of the reversing camera is in progress. The calibration is completed by: • Opening the camera cover for a maximum of 5 cumulative minutes. • If the vehicle speed is < 35 km/h (<22 MPH). • The steering wheel angle is < 10°. If calibration is aborted by exceeding one of the above conditions, the camera retracts and the calibration will re-attempt once the conditions are achieved and the speed returns to the range of 18 km/h (~11 MPH). Remedy SCN code PARK213M on MFA2 facelift vehicles produced after 09/2024 (A-Class, CLA, GLA, etc...) so the complete calibration speed window is available. For vehicles with PARK213M or PARK223 a calibration is completed successfully by: • Driving forward (typically less than 1 minute). • Vehicle speed is < 35 km/h (<22 MPH). • The steering wheel angle is < 10°. • During daylight. • Without a vehicle following too closely (camera must be able to see asphalt). When calibration has completed successfully, the camera door closes automatically for the rest of the driving cycle. The camera will now only open if the customer requests (Example: Engaging reverse gear). The calibration of the camera will re-initiate every drive cycle (ignition change). The customer can generally perform calibration at the first attempt while briefly maintaining a speed range of 15 km/ h (~9 MPH) and 35 km/h (~22 MPH). The customer can therefore play a significant role in reducing the camera door noise and actuation frequency.

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  Associated Documents

  • DownloadMC-11026835-0001.pdf↗
• December 18, 2025•Document ID: 11026834

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  LI47.70-P-076030

  Date Added:

  December 24, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint After the charging process is complete, an instrument cluster message with a charging error appears and FC P0CFE00 is stored in control unit "N83 - AC charger for high-voltage battery (SG-LG)". The fault message and the fault memory entry can also appear at the beginning of the charging pause during delayed charging. Both only occur in combination with active pre-entry climate control. Cause Software in control unit "N83 - AC charger for high-voltage battery (SG-LG)". Remedy For model series 167, 214, 254 and 223 with code 802: Perform SCN coding in control unit "N83 - AC charger for high-voltage battery (SG-LG)". Please do not replace any parts even if the FC P0CFE00 coding continues to appear after successfully completing this step. A new software is currently in development and will become available in late 01/2026. Replacing parts will not remedy the issue. For model series 243: The correction is already available. Please inform the workshop to perform a software update and SCN coding for the control units "N116/5 - Direct current charging connection unit (DCCU)" and "N83/11 - AC charger for high-voltage battery (SG-LG)" in order to remedy the problem.

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  Associated Documents

  • DownloadMC-11026834-0001.pdf↗
• December 11, 2025•Document ID: 11026608

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  LI54.71-P-079104

  Date Added:

  December 15, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  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 speed limit ("- -"). • Flashing when current vehicle speed is under speed limit. • Flashing between US speed limit symbol and European speed limit symbol. Cause There are two identified reasons for this concern: 1. Country code information stored incorrectly at a particular geographic latitude range. 2. Incorrect reference data when the vehicle is started and a GPS signal is not immediately available. Remedy No TIPS case is necessary. Do not replace parts. A new software for the head unit is scheduled for tentative release in Q4 2025 to early Q1 2026 to rectify concern.

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  Associated Documents

  • DownloadMC-11026608-0001.pdf↗
• December 11, 2025•Document ID: 11026611

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  LI54.65-P-080132

  Date Added:

  December 15, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  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. Cameras 6. Other Park Topics Cause Various root causes Remedy See attached diagnostic guide.

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  • DownloadMC-11026611-0001.pdf↗
• December 6, 2025•Document ID: 11026596

  Service Bulletin/Repair Instructions
  SUSPENSION; ELECTRICAL SYSTEM; ENGINE

  Mfr Comm. #:

  LI54.18-P-067550

  Date Added:

  December 12, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint <p>ESP®, BAS, PRE-SAFE®, HOLD function, Hill-Start Assist, ESP® trailer stabilization, Adaptive Brake Lights, Lane Keeping Assist, Blind Spot Assist, Adaptive Brake Assist, and/or ATTENTION ASSIST may be temporarily unavailable. The brake system continues to operate with normal effectiveness. The support functions listed may be unavailable, but are available again after an ignition off/on cycle.</p><p>One or more of the faults listed under 'Control unit/ fault code' for the accelerator pedal (B37) is logged in the PTCU control unit (N127). Consequential faults may have been logged in the ESP control unit.</p> Cause <p>Resistance at accelerator pedal contacts.</p> Remedy <p>The remedy refers only to the model series listed and is not compatible with other published TIPS documents for other model series.</p><p>If all the test steps stored in XENTRY Diagnosis have been performed and no component faults were found, the following work must be carried out:</p><p>- Replace the connector/ feed line to the accelerator pedal sensor (B37) using the wiring harness repair kit (see parts table).</p><p>Please ensure that the twisted lines are untwisted as little as possible.</p><p>Please do not replace any other components (e.g. accelerator pedal sensor).</ p><p> </p><p>Reoccurrence of the problem:</p><p>If the fault occurs again, or if this is a reoccurrence of the same problem, please make sure that the line connectors between the repair wiring harness and the interior wiring harness are fitted correctly and that the solder has dispersed evenly. In case of doubt, please repeat the repair. If the problem reoccurs after the second repair attempt, please create a TIPS case with informative photos of all line connectors.</ p><p> </p><p>Information on alternative to repair wiring harness:</p><p>If there should be any supply bottlenecks with regard to the repair wiring harness, then the contact sockets on the accelerator pedal sensor can be replaced as an alternative.</ p>

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  Associated Documents

  • DownloadMC-11026596-0001.pdf↗
• December 4, 2025•Document ID: 11026500

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  LI82.00-P-080103

  Date Added:

  December 9, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint <p>A finger is permanently detected although none is present, but it is not identified (ghost function).</p><p>The result is a constant beep tone because no valid finger is detected and therefore no corresponding user profile can be assigned. </p> Cause <p>Software bug in A105 touchpad (TPAD).</p> Remedy <p>Perform software update in A105 touchpad (TPAD).</p>

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  Associated Documents

  • DownloadMC-11026500-0001.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.

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  Associated Documents

  • DownloadMC-11026127-0001.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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  • 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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  • DownloadMC-11025648-0001.pdf↗
• November 12, 2025•Document ID: 11025542

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  LI27.60-P-079970

  Date Added:

  November 14, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint Shift quality complaints when braking during 2-1 coasting downshifts in Sport Plus (S+) drive mode. Cause Software application. Remedy 1. Perform IPR and follow the instructions. 2. Perform software update on transmission control unit VGS2NAG3M (N15/15), available since 09/2025. (New software numbers) A0019021921 A0019022121 3. In Xentry, go to transmission control unit under Special Functions > Special Function: Reset Learned Values (Deceleration Mode). 4. Perform standstill adaptation. NOTE: All steps (software update, resetting learned values, and standard adaptation) must be completed to fully resolve the complaint.

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  • DownloadMC-11025542-0001.pdf↗
• November 12, 2025•Document ID: 11025535

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  LI47.70-P-079963

  Date Added:

  November 14, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint AC charging is not possible. Charging is interrupted after 15 minutes. Following malfunctions on Instrument Cluster (IC) can appear : • "AC charging inoperative Consult workshop" • "Performance severely limited “Hybrid drive system” The following fault codes related to the failure can be found in the below Control units : PTCU - N127 (Drivetrain control unit) • P0667FA - On-board charger • P0F7FFA - On-board charger OBL223_GEN4 - N83/11 (Alternating current charger for high-voltage battery): • P0667FA - The internal temperature sensor of the control unit has a malfunction. • P0F7FFA - The signals of coolant temperature sensors 1 and 2 of the on-board charger are implausible in comparison with each other. • P0D8F97 - The cooling of the on-board charger is inadequate. The system function is restricted. INV1G40 - N147 (Power electronics control unit): • P0A9300 - The cooling system for the low temperature circuit has a malfunction Cause • The coolant lines of the LT1 (low temperature) cooling circuit for the power electronics (N147) and the LT2 (low temperature) cooling circuit for the AC charger (OBL), may have been installed in reverse order Remedy • It is possible that the coolant hoses highlighted in the pictures are installed in reverse order. • Interchange these two coolant lines and check if the vehicle is charging without any malfunction.

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  Associated Documents

  • DownloadMC-11025535-0001.pdf↗
• November 11, 2025•Document ID: 11025534

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  LI47.70-P-079912

  Date Added:

  November 14, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint Vehicle will not start after DC charging Warning in the instrument cluster related to High-voltage on board electrical system The following fault codes related to stuck contactor can be found in the High Voltage Control units : PTCU - N127 (Powertrain control unit) • P154900 - There is a warning due to overcurrent in the charging system of the high-voltage electric circuit. • P154A00 - There is a warning due to a detected crash event at standstill. • P154B00 - There is a warning due to a stuck contactor. DCB223 - N116/5 (Direct current charge connection unit) • P0E8929 - The input current of the on-board DC charging connection unit is too high. There is an invalid signal. • P2BC500 - The contact ''Positive terminal'' of the contactor in the on-board DC current charge-connection unit is jammed closed • P2BCC00 - The contact ''Negative terminal'' of the contactor in the on-board DC current charge-connection unit is jammed closed. Cause • Current ripple due to EVSE (Electric Vehicle Supply Equipment) • Overcurrent or Overvoltage due to EVSE (Electric Vehicle Supply Equipment) • DCB contactors did not open immediately due to welding time at the end of DC charging Remedy • Check for a new software availability for DCCU (N116/5 - Direct Current Charge connection Unit). If a new software is available, update the software first. • Reset contactor fault through special procedure without password. ( N116/5 >> Special Procedure >> Resetting of contactor fault.) Important Note : • Do not replace component DCB (N116/5) • If fault codes are not erasable, please raise a TIPS case and send it to HQ.

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  Associated Documents

  • DownloadMC-11025534-0001.pdf↗
• November 11, 2025•Document ID: 11025533

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  LI27.60-P-078599

  Date Added:

  November 13, 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 In certain driving scenarios, the transmission torque adaptation for the 5-4 downshift is recorded at a higher value. This skews the learning which leads to harsh engagement of the B06 clutches, creating the harsh 5-4 downshift. Remedy "Phase 1" software was released 11/14/2024 to slow the adaptation process and reduce the frequency of the complaint. However, it was possible that the client’s driving style could cause suboptimal adaptations, and this would result in the concern returning sooner than anticipated for some vehicles. "Phase 2" software has been released as of 09/04/2025 and will correct the root cause of the poor adaptation learning. See software list below. A0019021721 A0019021821 A0019021921 A0019022021 A0019022121 Please follow IPR recommended procedures. IPR has been trained to recognize this pattern and will advise the necessary steps below. ***ALL STEPS MUST BE PERFORMED! *** The concern will still be present or may return if not completely correctly. Ensure all steps are documented in paperless, the previous warranty print out with the check marks is no longer required. 1. Perform resetting of learned values "deceleration mode" (VGS > Special Procedures > Special procedure > Resetting learned values Deceleration mode) 2. Perform 5 standstill adaptions in a row followed by 5 torque converter adaptations 3. Perform software update for the VGS Control Unit 4. Clear all faults 5. Perform final QC test drive & confirm normal operation of all shifts If issues arise during the process or the concern has returned with phase 2 software, please submit a TIPS case to the Powertrain inbox with the following information: - Initial Quick Test w/ freeze frame data - VGS Control Unit Log - Initial EEPROM data (before any procedures) - Current EEPROM data (after LI/IPR procedures) - Relevant screenshots (standstill adaptations, software update, etc)

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  Associated Documents

  • DownloadMC-11025533-0001.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)

  Associated Products (94)

  2026 Mercedes-Benz AMG GT2025 Mercedes-Benz AMG GT2025 Mercedes-Benz C-Class2025 Mercedes-Benz G-Class2025 Mercedes-Benz GLE-Class2025 Mercedes-Benz GLS-Class2025 Mercedes-Benz S-Class2025 Mercedes-Benz SL-Class2024 Mercedes-Benz AMG GT2024 Mercedes-Benz C-Class2024 Mercedes-Benz G-Class2024 Mercedes-Benz GLE-Class2024 Mercedes-Benz GLS-Class2024 Mercedes-Benz S-Class2024 Mercedes-Benz SL-Class2023 Mercedes-Benz AMG GT2023 Mercedes-Benz C-Class2023 Mercedes-Benz CLS-Class2023 Mercedes-Benz E-Class2023 Mercedes-Benz G-Class+ 74 more
  Associated Documents

  • DownloadMC-11025471-0001.pdf↗
• November 7, 2025•Document ID: 11025171

  Service Campaign
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  NCU - 2025100006

  Date Added:

  November 7, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain subject vehicles, the engine control unit software does not correspond to the current series production configuration. Some customers may notice a noise from the radiator fan as well as a corresponding fault message displayed in the instrument cluster. MBUSA will conduct a service campaign. An authorized Mercedes-Benz dealer will update the engine control unit software.

  Associated Products (10)

  2020 Mercedes-Benz AMG GT2020 Mercedes-Benz CLS-Class2020 Mercedes-Benz E-Class2020 Mercedes-Benz GLE-Class2020 Mercedes-Benz GLS-Class2019 Mercedes-Benz AMG GT2019 Mercedes-Benz CLS-Class2019 Mercedes-Benz E-Class2019 Mercedes-Benz GLE-Class2019 Mercedes-Benz GLS-Class
  Associated Documents

  • DownloadMC-11025171-0001.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).

  Associated Products (67)

  2026 Mercedes-Benz CLA-Class2026 Mercedes-Benz GLA-Class2026 Mercedes-Benz GLB-Class2026 Mercedes-Benz GLC-Class2025 Mercedes-Benz C-Class2025 Mercedes-Benz CLA-Class2025 Mercedes-Benz CLE2025 Mercedes-Benz E-Class2025 Mercedes-Benz EQB-Class2025 Mercedes-Benz G-Class2025 Mercedes-Benz GLA-Class2025 Mercedes-Benz GLB-Class2025 Mercedes-Benz GLC-Class2025 Mercedes-Benz GLE-Class2025 Mercedes-Benz S-Class2024 Mercedes-Benz C-Class2024 Mercedes-Benz CLA-Class2024 Mercedes-Benz CLE2024 Mercedes-Benz E-Class2024 Mercedes-Benz EQB-Class+ 47 more
  Associated Documents

  • DownloadMC-11025544-0001.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?

  Associated Products (103)

  2026 Mercedes-Benz AMG GT2026 Mercedes-Benz GLC-Class2025 Mercedes-Benz AMG GT2025 Mercedes-Benz C-Class2025 Mercedes-Benz E-Class2025 Mercedes-Benz G-Class2025 Mercedes-Benz GLC-Class2025 Mercedes-Benz GLE-Class2025 Mercedes-Benz GLS-Class2025 Mercedes-Benz S-Class2025 Mercedes-Benz SL-Class2024 Mercedes-Benz AMG GT2024 Mercedes-Benz C-Class2024 Mercedes-Benz E-Class2024 Mercedes-Benz G-Class2024 Mercedes-Benz GLC-Class2024 Mercedes-Benz GLE-Class2024 Mercedes-Benz GLS-Class2024 Mercedes-Benz S-Class2024 Mercedes-Benz SL-Class+ 83 more
  Associated Documents

  • DownloadMC-11025100-0001.pdf↗