Audi A4 Allroad 2017–2018 — technical service bulletin
Bulletin A911938 2051051- · NHTSA communication 10157253 · issued Feb 13, 2019
Technical service bulletin
communication type
Equipment Adaptive/mobility
component
2017–2018
model years
4
vehicle entries
Official summary
This bulletin contains repair instructions for poor sound reproduction with part number 8W0035415.
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.