Audi A4 2021–2025 — technical service bulletin
Bulletin A0124462071243_3 · NHTSA communication 11011243 · issued Nov 27, 2024
Technical service bulletin
communication type
Engine
component
2021–2025
model years
25
vehicle entries
Official summary
This bulletin provides information when there are whistling noises from the turbo charge at 1500 - 2200 rpm and apprximately 70% load.
Vehicles covered
- 2021 Audi A4
- 2022 Audi A4
- 2023 Audi A4
- 2021 Audi A4 Allroad
- 2022 Audi A4 Allroad
- 2023 Audi A4 Allroad
- 2021 Audi A5
- 2022 Audi A5
- 2023 Audi A5
- 2021 Audi A5 Cabriolet
- 2022 Audi A5 Cabriolet
- 2023 Audi A5 Cabriolet
- 2021 Audi A5 Sportback
- 2022 Audi A5 Sportback
- 2023 Audi A5 Sportback
- 2021 Audi Q5
- 2022 Audi Q5
- 2023 Audi Q5
- 2024 Audi Q5
- 2025 Audi Q5
- 2021 Audi Q5 Sportback
- 2022 Audi Q5 Sportback
- 2023 Audi Q5 Sportback
- 2024 Audi Q5 Sportback
- 2025 Audi Q5 Sportback
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.