Audi A4 2003–2004 — technical service bulletin
Bulletin 0411 · NHTSA communication 10011581 · issued Nov 21, 2005
Technical service bulletin
communication type
Engine and Engine Cooling
component
2003–2004
model years
3
vehicle entries
Official summary
Update programming engine control module flashing to correct evap purge valve dtc p0441 in the audi 2004 cabriolet . *tc
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.