Audi A4 2024 — technical service bulletin
Bulletin A0123902071945_1 · NHTSA communication 10245523 · issued Nov 1, 2023
Technical service bulletin
communication type
Engine and Engine Cooling
component
2024
model years
14
vehicle entries
Official summary
This bulletin provides information for when there is an exhaust warning light; DTC P000000 engine starter relay test plan.
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.