Audi A3 2017–2018 — technical service bulletin
Bulletin A9120032050567_2 · NHTSA communication 10179122 · issued Aug 27, 2020
Technical service bulletin
communication type
Electrical System
component
2017–2018
model years
4
vehicle entries
Official summary
This bulletin contains a software update for the subwoofer adjustment that is missing in the MMI for vehicles equipped with Bang & Olufsen.
Vehicles covered
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.