# Service bulletin B521015

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: 10146959
- Published by NHTSA: 2018\-11\-05
- Manufacturer's number: B521015
- Manufacturer's date: 2016\-11\-01
- NHTSA component: SEATS:FRONT ASSEMBLY:SEAT HEATER/COOLER; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY

## NHTSA's summary

THE FRONT SEAT VENTILATION FAN MAKES A GRINDING NOISE This Service Information bulletin supersedes SI B52 10 15 dated February 2016.. A grinding noise can be heard from the front ventilation seat, often when going around corners. The fan scrapes against the grille cover Pad foam particles are collected inside the fan causing a noise The Velcro fastener under the seat cover is displaced and hits the fan

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2016/MC-10146959-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2016/MC-10146959-0001.pdf)

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

## Components

Equipment and accessories, Seats

## Vehicles listed

- 2016 BMW 750LI
- 2017 BMW M760LI

JSON: [/v1/bulletins/10146959](/v1/bulletins/10146959)

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