Audi A6 2018–2026 — technical service bulletin
Bulletin TSB_2053278_10 · NHTSA communication 11023735 · issued Sep 30, 2025
Technical service bulletin
communication type
Engine
component
2018–2026
model years
60
vehicle entries
Official summary
This bulletin provides information when there is an oil leak from the cylinder head - 2.9 and 3.0 TFSI only.
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
- 2019 Audi Q8
- 2020 Audi Q8
- 2021 Audi Q8
- 2022 Audi Q8
- 2023 Audi Q8
- 2024 Audi Q8
- 2025 Audi Q8
- 2018 Audi RS 5
- 2019 Audi RS 5
- 2021 Audi RS 5
- 2022 Audi RS 5
- 2023 Audi RS 5
- 2024 Audi RS 5
- 2019 Audi RS 5 Sportback
- 2021 Audi RS 5 Sportback
- 2022 Audi RS 5 Sportback
- 2023 Audi RS 5 Sportback
- 2024 Audi RS 5 Sportback
- 2025 Audi RS 5 Sportback
- 2018 Audi S4
- 2019 Audi S4
- 2020 Audi S4
- 2021 Audi S4
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.