# Service bulletin LI42.10\-P\-078875

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: 11025655
- Published by NHTSA: 2025\-11\-21
- Manufacturer's number: LI42.10\-P\-078875
- Manufacturer's date: 2025\-11\-20
- NHTSA component: SERVICE BRAKES

## NHTSA's 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.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11025655-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11025655-9999.pdf)

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

## Components

Brakes

## Vehicles listed

- 2025 MERCEDES\-BENZ AMG GLC63 S E
- 2025 MERCEDES\-BENZ AMG GLC63 S E 4MATIC\+
- 2025 MERCEDES\-BENZ AMG GLC63 S E 4MATIC\+ COUPE

JSON: [/v1/bulletins/11025655](/v1/bulletins/11025655)

[Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%20Service%20bulletin%20LI42.10-P-078875&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F11025655&vehicle=Service%20bulletin%20LI42.10-P-078875)