Audi A4 2001–2004 — technical service bulletin
Bulletin AWA-08-03 · NHTSA communication 10025301 · issued Feb 11, 2008
Technical service bulletin
communication type
Engine and Engine Cooling
component
2001–2004
model years
13
vehicle entries
Official summary
Audi service campaign: see document search button for owner letter. Engine coolant temperature sensor warranty extension for certain 2001-2004 audi model year vehicles. Csc was received *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.