Audi A3 Cabriolet 2017 — technical service bulletin
Bulletin A911878 2050567_ · NHTSA communication 10133314 · issued Feb 27, 2018
Technical service bulletin
communication type
Equipment
component
2017
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.
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.