# Service bulletin LI27.10\-P\-075869

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 11025100
- Published by NHTSA: 2025\-11\-06
- Manufacturer's number: LI27.10\-P\-075869
- Manufacturer's date: 2025\-11\-03
- NHTSA component: POWER TRAIN

## NHTSA's 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?

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11025100-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11025100-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Transmission and driveline

## Vehicles listed

- 2018 MERCEDES BENZ C 300 4MATIC
- 2016 to 2024 MERCEDES\-BENZ AMG C43
- 2023 MERCEDES\-BENZ AMG C43 4MATIC
- 2019 to 2021 MERCEDES\-BENZ AMG C63
- 2019 to 2023 MERCEDES\-BENZ AMG C63 S
- 2019 to 2021 MERCEDES\-BENZ AMG CLS53
- 2017 to 2018 MERCEDES\-BENZ AMG E43
- 2019 to 2023 MERCEDES\-BENZ AMG E53
- 2018 to 2023 MERCEDES\-BENZ AMG E63
- 2023 MERCEDES\-BENZ AMG E63 S
- 2018 to 2022 MERCEDES\-BENZ AMG E63S
- 2019 to 2025 MERCEDES\-BENZ AMG G63
- 2017 to 2024 MERCEDES\-BENZ AMG GLC43
- 2024 to 2025 MERCEDES\-BENZ AMG GLC43 4MATIC COUPE
- 2018 to 2022 MERCEDES\-BENZ AMG GLC63
- 2020 to 2023 MERCEDES\-BENZ AMG GLC63 S
- 2018 to 2019 MERCEDES\-BENZ AMG GLC63S
- 2016 to 2021 MERCEDES\-BENZ AMG GLE43
- 2021 to 2022 MERCEDES\-BENZ AMG GLE53
- 2023 to 2025 MERCEDES\-BENZ AMG GLE53 4MATIC\+
- 2025 MERCEDES\-BENZ AMG GLE53 4MATIC\+ COUPE
- 2020 to 2024 MERCEDES\-BENZ AMG GLE63
- 2021 to 2022 MERCEDES\-BENZ AMG GLE63 S
- 2023 to 2024 MERCEDES\-BENZ AMG GLE63 S 4MATIC\+
- 2025 MERCEDES\-BENZ AMG GLE63 S 4MATIC\+ COUPE
- 2018 MERCEDES\-BENZ AMG GLE63S
- 2017 to 2022 MERCEDES\-BENZ AMG GLS63
- 2023 to 2025 MERCEDES\-BENZ AMG GLS63 4MATIC\+
- 2023 MERCEDES\-BENZ AMG GT 63 S E COUPE
- 2020 to 2025 MERCEDES\-BENZ AMG GT43
- 2019 to 2023 MERCEDES\-BENZ AMG GT53
- 2019 to 2026 MERCEDES\-BENZ AMG GT63
- 2022 to 2023 MERCEDES\-BENZ AMG GT63 S
- 2024 to 2025 MERCEDES\-BENZ AMG GT63 S E
- 2019 to 2021 MERCEDES\-BENZ AMG GT63S
- 2023 to 2025 MERCEDES\-BENZ AMG S 63 E 4MATIC\+
- 2017 to 2021 MERCEDES\-BENZ AMG S63
- 2018 to 2020 MERCEDES\-BENZ AMG SL63
- 2022 to 2023 MERCEDES\-BENZ AMG SL63
- 2025 MERCEDES\-BENZ AMG SL63
- 2023 MERCEDES\-BENZ AMG SL63 4MATIC\+
- 2024 to 2025 MERCEDES\-BENZ AMG SL63 S E
- 2017 to 2020 MERCEDES\-BENZ AMG SLC43
- 2017 to 2025 MERCEDES\-BENZ C 300
- 2019 to 2020 MERCEDES\-BENZ C 350 E
- 2016 MERCEDES\-BENZ C300
- 2016 to 2017 MERCEDES\-BENZ C350E
- 2016 to 2017 MERCEDES\-BENZ C450
- 2019 to 2023 MERCEDES\-BENZ CLS 450
- 2016 MERCEDES\-BENZ CLS 550
- 2018 MERCEDES\-BENZ CLS 550
- 2015 MERCEDES\-BENZ CLS550
- 2017 MERCEDES\-BENZ CLS550
- 2018 to 2019 MERCEDES\-BENZ E 300
- 2020 to 2025 MERCEDES\-BENZ E 350
- 2025 MERCEDES\-BENZ E 350 4MATIC
- 2018 MERCEDES\-BENZ E 400
- 2019 to 2024 MERCEDES\-BENZ E 450
- 2025 MERCEDES\-BENZ E 450 4MATIC
- 2025 MERCEDES\-BENZ E 450 4MATIC ALL\-TERRAIN
- 2016 to 2017 MERCEDES\-BENZ E300
- 2015 to 2017 MERCEDES\-BENZ E400
- 2019 to 2025 MERCEDES\-BENZ G 550
- 2017 MERCEDES\-BENZ GL350
- 2017 MERCEDES\-BENZ GL450
- 2017 MERCEDES\-BENZ GL550
- 2018 to 2026 MERCEDES\-BENZ GLC 300
- 2023 to 2026 MERCEDES\-BENZ GLC 300 4MATIC
- 2024 to 2026 MERCEDES\-BENZ GLC 300 4MATIC COUPE
- 2024 MERCEDES\-BENZ GLC 300 COUPE
- 2020 to 2021 MERCEDES\-BENZ GLC 350 E
- 2025 MERCEDES\-BENZ GLC 350 E 4MATIC
- 2016 to 2017 MERCEDES\-BENZ GLC300
- 2018 to 2024 MERCEDES\-BENZ GLE 350
- 2024 to 2025 MERCEDES\-BENZ GLE 350 4MATIC
- 2020 to 2021 MERCEDES\-BENZ GLE 350 E
- 2018 to 2019 MERCEDES\-BENZ GLE 400
- 2021 MERCEDES\-BENZ GLE 400 E
- 2024 MERCEDES\-BENZ GLE 400 E
- 2020 to 2024 MERCEDES\-BENZ GLE 450
- 2025 MERCEDES\-BENZ GLE 450 4MATIC
- 2025 MERCEDES\-BENZ GLE 450 4MATIC COUPE
- 2024 to 2025 MERCEDES\-BENZ GLE 450E 4MATIC
- 2020 to 2021 MERCEDES\-BENZ GLE 580
- 2022 to 2024 MERCEDES\-BENZ GLE 580 4MATIC
- 2016 to 2017 MERCEDES\-BENZ GLE350
- 2016 MERCEDES\-BENZ GLE350D
- 2016 to 2017 MERCEDES\-BENZ GLE400
- 2016 to 2017 MERCEDES\-BENZ GLE450
- 2016 to 2017 MERCEDES\-BENZ GLE63S
- 2018 to 2020 MERCEDES\-BENZ GLS 450
- 2022 to 2025 MERCEDES\-BENZ GLS 450 4MATIC
- 2018 to 2019 MERCEDES\-BENZ GLS 550
- 2020 MERCEDES\-BENZ GLS 580 4MATIC
- 2022 to 2025 MERCEDES\-BENZ GLS 580 4MATIC
- 2023 MERCEDES\-BENZ GLS 600
- 2017 MERCEDES\-BENZ GLS350D
- 2016 to 2017 MERCEDES\-BENZ GLS450
- 2021 MERCEDES\-BENZ GLS450
- 2017 MERCEDES\-BENZ GLS550
- 2021 MERCEDES\-BENZ GLS580
- 2015 MERCEDES\-BENZ ML350
- 2018 to 2020 MERCEDES\-BENZ S 450
- 2021 MERCEDES\-BENZ S 500
- 2023 MERCEDES\-BENZ S 500
- 2022 to 2024 MERCEDES\-BENZ S 500 4MATIC
- 2018 to 2020 MERCEDES\-BENZ S 550
- 2021 MERCEDES\-BENZ S 560
- 2019 to 2020 MERCEDES\-BENZ S 560 E
- 2021 MERCEDES\-BENZ S 580
- 2023 MERCEDES\-BENZ S 580
- 2022 to 2024 MERCEDES\-BENZ S 580 4MATIC
- 2023 MERCEDES\-BENZ S 580 E
- 2023 to 2025 MERCEDES\-BENZ S 580 E 4MATIC
- 2016 to 2017 MERCEDES\-BENZ S550
- 2016 to 2017 MERCEDES\-BENZ S550 4MATIC
- 2018 to 2020 MERCEDES\-BENZ SL 450
- 2018 to 2020 MERCEDES\-BENZ SL 550
- 2017 MERCEDES\-BENZ SL450
- 2016 to 2017 MERCEDES\-BENZ SL550
- 2018 to 2020 MERCEDES\-BENZ SLC 300
- 2017 MERCEDES\-BENZ SLC 43 AMG
- 2016 to 2017 MERCEDES\-BENZ SLC300
- 2016 MERCEDES\-BENZ SLK300
- 2021 MERCEDES\-MAYBACH GLS 600
- 2022 to 2025 MERCEDES\-MAYBACH GLS 600 4MATIC
- 2021 MERCEDES\-MAYBACH S 560
- 2018 to 2020 MERCEDES\-MAYBACH S 560 4MATIC
- 2021 MERCEDES\-MAYBACH S 580
- 2022 to 2024 MERCEDES\-MAYBACH S 580 4MATIC
- 2023 to 2024 MERCEDES\-MAYBACH S 680
- 2022 to 2023 MERCEDES\-MAYBACH S 680 4MATIC
- 2017 MERCEDES\-MAYBACH S550

JSON: [/v1/bulletins/11025100](/v1/bulletins/11025100)

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