Audi A3 2017 — technical service bulletin
Bulletin A9121962053533_5 · NHTSA communication 10193260 · issued May 3, 2021
Technical service bulletin
communication type
Equipment
component
2017
model years
1
vehicle entries
Official summary
This bulletin contains a software update for when the subwoofer adjustment is missing and is equipped with Bang & Olufsen and the customer vehicle has MMI Navigation.
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.