Audi S4 2004 — technical service bulletin
Bulletin 190501 · NHTSA communication 10012765 · issued Feb 2, 2005
Technical service bulletin
communication type
Engine and Engine Cooling
component
2004
model years
1
vehicle entries
Official summary
After-run coolant pump, activating (ib). To include 2005 s4 sedan, avant. *tt
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.