Audi A4 2016–2020 — technical service bulletin
Bulletin SM 99-2019 · NHTSA communication 10167119 · issued Oct 29, 2019
Technical service bulletin
communication type
Unknown OR Other
component
2016–2020
model years
17
vehicle entries
Official summary
The part number listed in the document are to be returned if they meet the criteria provided.
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.