Audi A4 2005 — technical service bulletin
Bulletin 0505 · NHTSA communication 10018431 · issued Nov 3, 2005
Technical service bulletin
communication type
Electrical System
component
2005
model years
2
vehicle entries
Official summary
Malfunction indicator lamp (mil) may be illuminated. Diagnostic trouble code (dtc) p2106 (18538) throttle actuator control system - forced limited power may be present. *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.