# Service bulletin LI27.60\-P\-080167

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: 11028813
- Published by NHTSA: 2026\-02\-13
- Manufacturer's number: LI27.60\-P\-080167
- Manufacturer's date: 2026\-02\-12
- NHTSA component: POWER TRAIN

## NHTSA's summary

Complaint The vehicle cannot disengage “P” \(Park\), and a red warning message appears in the instrument cluster. Cause Only vehicles with transmission NAG3C 725.0 and engine M264 with transmission software version 19A/B are affected. \(see attachments for how to verify software level\) Excessive pressure in the disengaging clutch during monitoring of the parking lock \(see attachments for diagram\). Various parking lock monitoring errors and R/D monitoring errors occur, only with engine M264 and software versions 19A and 19B. Remedy Perform IPR and check for available VGS control unit software \(see parts list for part numbers\). If no software is available, AND vehicle has the latest software: 1. Perform special procedure "Resetting of adaptation values 'Park Pawl'" Only perform this special procedure if there is NO available software for the VGS control unit. If software is available: 1. Update the control unit, clear faults, then reevaluate the concern.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11028813-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11028813-9999.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
- 2018 to 2023 MERCEDES\-BENZ C 300
- 2021 to 2023 MERCEDES\-BENZ C 300 4MATIC
- 2020 to 2023 MERCEDES\-BENZ E 350
- 2019 to 2022 MERCEDES\-BENZ GLC 300
- 2023 MERCEDES\-BENZ GLC 300 4MATIC
- 2019 to 2023 MERCEDES\-BENZ GLE 350

JSON: [/v1/bulletins/11028813](/v1/bulletins/11028813)

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