# Service bulletin A191554 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: 10120688
- Published by NHTSA: 2017\-10\-25
- Manufacturer's number: A191554 2039777\-
- Manufacturer's date: 2015\-02\-13
- NHTSA component: ENGINE AND ENGINE COOLING

## NHTSA's summary

The coolant temperature warning light is on. The coolant level in the coolant expansion tank is close to or below minimum. Vehicles with low mileage and without previous repairs on the cooling system are most likely to be affected. During production, air can sporadically enter the cooling system. As this air escapes after a short operating period, the coolant level in the coolant expansion tank can drop below minimum.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2015/MC-10120688-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2015/MC-10120688-0001.pdf)

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

## Components

Engine

## Vehicles listed

- 2015 AUDI A3 CABRIOLET

JSON: [/v1/bulletins/10120688](/v1/bulletins/10120688)

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