# Service bulletin B170316

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: 10146885
- Published by NHTSA: 2018\-11\-05
- Manufacturer's number: B170316
- Manufacturer's date: 2016\-10\-01
- NHTSA component: FUEL SYSTEM, GASOLINE; ENGINE AND ENGINE COOLING

## NHTSA's summary

"""COOLANT LEVEL LOW"": LEAKING EXPANSION TANK. Check Control Message \(CCM\): ""Coolant Level Low"" Hissing noise from the coolant expansion tank with engine at operating temperature Evidence of coolant coming out of expansion tank"

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2016/MC-10146885-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2016/MC-10146885-0001.pdf)

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

## Components

Engine, Fuel system

## Vehicles listed

- 2016 BMW 750LI

JSON: [/v1/bulletins/10146885](/v1/bulletins/10146885)

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