Audi A6 2019–2026 — technical service bulletin
Bulletin TSB_2058831_18 · NHTSA communication 11032132 · issued Apr 30, 2026
Technical service bulletin
communication type
Electrical System
component
2019–2026
model years
49
vehicle entries
Official summary
This bulletin provides information when there is an electrical system warning; DTC U046900 stored in the ECM.
Vehicles covered
- 2019 Audi A6
- 2020 Audi A6
- 2021 Audi A6
- 2022 Audi A6
- 2023 Audi A6
- 2024 Audi A6
- 2025 Audi A6
- 2020 Audi A6 Allroad
- 2021 Audi A6 Allroad
- 2022 Audi A6 Allroad
- 2023 Audi A6 Allroad
- 2024 Audi A6 Allroad
- 2025 Audi A6 Allroad
- 2026 Audi A6 Allroad
- 2019 Audi A7
- 2020 Audi A7
- 2021 Audi A7
- 2022 Audi A7
- 2023 Audi A7
- 2024 Audi A7
- 2025 Audi A7
- 2019 Audi A8
- 2020 Audi A8
- 2021 Audi A8
- 2022 Audi A8
- 2023 Audi A8
- 2024 Audi A8
- 2025 Audi A8
- 2026 Audi A8
- 2020 Audi A8 L E
- 2021 Audi A8 L E
- 2020 Audi Q7
- 2021 Audi Q7
- 2022 Audi Q7
- 2023 Audi Q7
- 2024 Audi Q7
- 2025 Audi Q7
- 2026 Audi Q7
- 2019 Audi Q8
- 2020 Audi Q8
- 2021 Audi Q8
- 2022 Audi Q8
- 2023 Audi Q8
- 2024 Audi Q8
- 2025 Audi Q8
- 2026 Audi Q8
- 2020 Audi S8
- 2021 Audi S8
- 2022 Audi S8
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.