Audi A4 2008–2009 — technical service bulletin
Bulletin B-23D6-C2 · NHTSA communication 10030393 · issued May 1, 2009
Technical service bulletin
communication type
Electrical System
component
2008–2009
model years
5
vehicle entries
Official summary
Audi: software update to suspension control and add sunroof torx tool. *pe
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.