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June 25, 2020 Service bulletin

This bulletin contains instructions for identifying and mixing factory fill coolants.

Audi technical service bulletin A1920042025303_1 for 2005-2021 Audi A4, 2005-2021 Audi A6 and 2010-2021 Audi Q5 and others.

Bulletin number
A1920042025303_1
Component
Engine and engine cooling
Summary
This bulletin contains instructions for identifying and mixing factory fill coolants.

Owners of these vehicles have filed 1,572 complaints in the engine category.

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