# Service bulletin M340215

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: 10149267
- Published by NHTSA: 2018\-11\-26
- Manufacturer's number: M340215
- Manufacturer's date: 2017\-05\-01
- NHTSA component: SERVICE BRAKES

## NHTSA's summary

Vibration when Braking: Diagnosing and Repairing This Service Information bulletin replaces SI M34 02 15 dated June 2015 What's New: ? Situation ? Cause ? Procedure ? Correction ? Parts ? Warranty. Pulsation of the brake pedal when applying the brakes Excessive brake disc thicknes variation Brake disc thickness variation is the result of lateral runout in the face of the brake disc. A brake disc with lateral runout while driving will slightly contact the brake pad once per revolution resulting in a thin spot on the brake disc. This consistent contact will eventually cause the brake disc to wear unevenly. GRUSB3416\-02 PROCEDURE Refer to the attached troubleshooting tree. M34 02 15 Troubletree

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2017/MC-10149267-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2017/MC-10149267-0001.pdf)

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

## Components

Brakes

## Vehicles listed

- BMW BMW

JSON: [/v1/bulletins/10149267](/v1/bulletins/10149267)

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