Audi A4 2017–2025 — technical service bulletin
Bulletin A3924752075681_1 · NHTSA communication 11009938 · issued Oct 21, 2024
Technical service bulletin
communication type
Power Train
component
2017–2025
model years
60
vehicle entries
Official summary
This bulletin provides information when there are droning noises/vibrations in tight corners, vehicles with PR number GH4 (quattro with ultra technology).
Vehicles covered
- 2017 Audi A4
- 2018 Audi A4
- 2019 Audi A4
- 2020 Audi A4
- 2021 Audi A4
- 2022 Audi A4
- 2023 Audi A4
- 2024 Audi A4
- 2025 Audi A4
- 2017 Audi A4 Allroad
- 2018 Audi A4 Allroad
- 2019 Audi A4 Allroad
- 2020 Audi A4 Allroad
- 2021 Audi A4 Allroad
- 2022 Audi A4 Allroad
- 2023 Audi A4 Allroad
- 2024 Audi A4 Allroad
- 2025 Audi A4 Allroad
- 2019 Audi A5
- 2020 Audi A5
- 2021 Audi A5
- 2022 Audi A5
- 2023 Audi A5
- 2024 Audi A5
- 2019 Audi A5 Cabriolet
- 2020 Audi A5 Cabriolet
- 2021 Audi A5 Cabriolet
- 2022 Audi A5 Cabriolet
- 2023 Audi A5 Cabriolet
- 2024 Audi A5 Cabriolet
- 2019 Audi A5 Sportback
- 2020 Audi A5 Sportback
- 2021 Audi A5 Sportback
- 2022 Audi A5 Sportback
- 2023 Audi A5 Sportback
- 2024 Audi A5 Sportback
- 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
- 2019 Audi A7
- 2020 Audi A7
- 2021 Audi A7
- 2022 Audi A7
- 2023 Audi A7
- 2024 Audi A7
- 2025 Audi A7
- 2021 Audi A7 E
- 2022 Audi A7 E
- 2018 Audi Q5
- 2019 Audi Q5
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.