Audi A4 2004–2008 — technical service bulletin
Bulletin 28 08 04 · NHTSA communication 10024722 · issued Mar 19, 2008
Technical service bulletin
communication type
Engine and Engine Cooling
component
2004–2008
model years
9
vehicle entries
Official summary
Mil on, engine speed sensor spacer not required (dtc p0300, p0335, p0336, p0321, p0322). *nj
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.