Volvo S40 2004–2005 — technical service bulletin
Bulletin 19271 · NHTSA communication 10025688 · issued Jun 23, 2008
Technical service bulletin
communication type
Power Train
component
2004–2005
model years
5
vehicle entries
Official summary
Vibration during acceleration front wheel drive (fwd) only. A vibration, especially while in 2nd or 3rd gear, at an engine speed between 1000 and 2000 rpm. May be worse in a heavily loaded vehicle or while driving uphill with a heavily loaded vehicle. *pe
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.