Audi A4 2016–2020 — technical service bulletin
Bulletin SM 99-2019 · NHTSA communication 10167119 · issued Oct 29, 2019
Technical service bulletin
communication type
Unknown / 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.