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March 2, 2021 Service bulletin

This bulletin provides guidance on diagnosing a coolant light concern with normal coolant level in the tank.

Audi technical service bulletin A1921122061918_2 for 2017-2021 Audi A4, 2017-2021 Audi A6 and 2017-2021 Audi Q5 and others.

Bulletin number
A1921122061918_2
Component
Engine and engine cooling
Summary
This bulletin provides guidance on diagnosing a coolant light concern with normal coolant level in the tank.

Owners of these vehicles have filed 511 complaints in the engine category.

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