Audi S4 2010 — technical service bulletin
Bulletin TSB_2041242_3 · NHTSA communication 11034641 · issued Jun 22, 2026
Technical service bulletin
communication type
Power Train
component
2010
model years
2
vehicle entries
Official summary
This bulletin provides information when, after replacing the mechatronic unit/gearbox, the engine only starts when the button has been pressed twice.
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.