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September 10, 2025 Service bulletin

This bulletin provides information when there is a tail light warning and variois DTCs are stored in the...

Audi technical service bulletin TSB_2065234_2 for 2020-2021 Audi A4, 2020-2021 Audi S4 and 2020-2021 Audi A4 Allroad.

Bulletin number
TSB_2065234_2
Component
Electrical system
Summary
This bulletin provides information when there is a tail light warning and variois DTCs are stored in the comfort module; B16D431, B16D631, B16D531, and/or B16D731.

Owners of these vehicles have filed 131 complaints in the electrical category.

Vehicles covered

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