March 23, 2023 Service bulletin

This bulletin provides information for when the rear window defogger is not operational.

Audi technical service bulletin A5723022058452_4 for 2019-2021 Audi A4, 2019-2021 Audi Q7 and 2019-2021 Audi S4 and others.

Bulletin number: A5723022058452_4
Component: Visibility: defroster/defogger/HVAC system
Summary: This bulletin provides information for when the rear window defogger is not operational.

Owners of these vehicles have filed 16 complaints in the visibility category.

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