Audi A3 2005–2009 — technical service bulletin
Bulletin 0113702018260 · NHTSA communication 10250424 · issued Feb 22, 2013
Technical service bulletin
communication type
Engine and Engine Cooling
component
2005–2009
model years
18
vehicle entries
Official summary
MIL on (P1545, P0121, P0123, P0221 or P0222 stored in ECM)
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.