Audi A4 Allroad 2017–2018 — technical service bulletin
Bulletin A401878 2047920_ · NHTSA communication 10138317 · issued Mar 2, 2018
Technical service bulletin
communication type
Suspension
component
2017–2018
model years
6
vehicle entries
Official summary
The bulletin contains diagnosis information for noises on the front end of the vehicle. Potential rolling sounds.
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.