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May 6, 2021 Service bulletin

This bulletin provides instructions on how to clean exterior glass.

Audi technical service bulletin A6421802020552_1 for 2010-2022 Audi A4, 2010-2022 Audi A6 and 2010-2021 Audi Q5 and others.

Bulletin number
A6421802020552_1
Component
Visibility: glass, side/rear
Summary
This bulletin provides instructions on how to clean exterior glass.

Owners of these vehicles have filed 154 complaints in the visibility category.

Vehicles covered

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