Audi A4 2005 — technical service bulletin
Bulletin 570502 · NHTSA communication 10015581 · issued May 3, 2005
Technical service bulletin
communication type
Equipment
component
2005
model years
2
vehicle entries
Official summary
Remote transmitter key inoperable. Audi 2005 a4, s4 sedan and avant. *tt
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.