Vehicle report
2005 AUDI S4
This model year
What the record shows
The 2005 Audi S4 is a compact car, and the 15th model year of a nameplate NHTSA records from 1991 to 2026.
The EPA rated two configurations: a single 4.2-litre eight-cylinder engine, 4-wheel or all-wheel drive only, two transmissions and running on premium gasoline.
Combined fuel economy is 16 mpg.
The federal record holds 43 owner complaints, 2 safety recalls and 192 service bulletins for it.
Counts are reports, not rates. A complaint is something an owner chose to file; it is unverified and unadjusted for how many of these cars were sold, so the useful comparison is against other model years of the same car. Recalls and investigations carry more weight because a manufacturer or regulator acted on them.
Reading this report
Complaint counts are reports filed with NHTSA, not failure rates. A common model collects more of them than a rare one that breaks more often.