Audi A4 2017–2021 — technical service bulletin
Bulletin A4020042047920_3 · NHTSA communication 10175369 · issued May 12, 2020
Technical service bulletin
communication type
Suspension
component
2017–2021
model years
25
vehicle entries
Official summary
The bulletin contains diagnosis information for noises on the front end of the vehicle. Potential rolling sounds.
Vehicles covered
- 2017 Audi A4
- 2018 Audi A4
- 2019 Audi A4
- 2020 Audi A4
- 2021 Audi A4
- 2017 Audi A5
- 2018 Audi A5
- 2019 Audi A5
- 2020 Audi A5
- 2021 Audi A5
- 2017 Audi A6
- 2018 Audi A6
- 2019 Audi A6
- 2020 Audi A6
- 2021 Audi A6
- 2017 Audi A7
- 2018 Audi A7
- 2019 Audi A7
- 2020 Audi A7
- 2021 Audi A7
- 2017 Audi Q7
- 2018 Audi Q7
- 2019 Audi Q7
- 2020 Audi Q7
- 2021 Audi Q7
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.