# Service bulletin B340520

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: 10177624
- Published by NHTSA: 2020\-07\-27
- Manufacturer's number: B340520
- Manufacturer's date: 2020\-06\-01
- NHTSA component: SERVICE BRAKES

## NHTSA's summary

BRAKE NOISE \- HELPFUL FACTS FOR EFFECTIVE CUSTOMER COMMUNICATION: This bulletin intends to explain some typical brake noise phenomena and provide some recommendations about the usage and maintenance of the braking system. The below information can be used during the customer interaction but is not intended as a replacement for a proper diagnosis Every customer complaint should be taken seriously and if necessary, addressed using the support of the BMW Technical Support resources General information about the root cause of brake noises.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10177624-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10177624-9999.pdf)

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

## Components

Brakes

## Vehicles listed

- BMW BMW

JSON: [/v1/bulletins/10177624](/v1/bulletins/10177624)

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