Audi A4 2001–2003 — technical service bulletin
Bulletin 09012006 · NHTSA communication 10020793 · issued Sep 1, 2006
Technical service bulletin
communication type
Electrical System
component
2001–2003
model years
7
vehicle entries
Official summary
Ignition coils may fail causing a rough idle or reduced driving power could occur. *kb
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.