Audi A4 2012–2014 — technical service bulletin
Bulletin 48K8UPDATE · NHTSA communication 10249104 · issued Sep 27, 2013
Technical service bulletin
communication type
Steering
component
2012–2014
model years
18
vehicle entries
Official summary
Power Steering Control Unit Software (NVLW)
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.