# Service bulletin A191664 2039777\-

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: 10118302
- Published by NHTSA: 2017\-10\-04
- Manufacturer's number: A191664 2039777\-
- Manufacturer's date: 2016\-01\-12
- NHTSA component: ENGINE AND ENGINE COOLING

## NHTSA's summary

Coolant warning light on, coolant level close to or below minimum. The customer had to top off the coolant several times. Air gets into the cooling system during production or when refilled during previous repairs. As this air escapes, the coolant level in the coolant expansion tank can drop below the minimum. A drop of the coolant level because of air in the system is possible even after the vehicle has exceeded 15,000 miles. Because of the remaining air, the coolant level can drop a few times.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2016/MC-10118302-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2016/MC-10118302-0001.pdf)

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

## Components

Engine

## Vehicles listed

- 2015 to 2016 AUDI A3 CABRIOLET

JSON: [/v1/bulletins/10118302](/v1/bulletins/10118302)

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