Audi S4 2010–2011 — technical service bulletin
Bulletin 24ASUPDATE · NHTSA communication 10249097 · issued Apr 22, 2014
Technical service bulletin
communication type
Engine and Engine Cooling
component
2010–2011
model years
4
vehicle entries
Official summary
ECM Software Update (FED_EMS)
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.