There are 2 owner-reported steering complaints for the 2004 Audi S4in NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
TL* THE CONTACT OWNS A 2004 AUDI S4. THE CONTACT WAS DRIVING 25 MPH WHEN THE STEERING WHEEL FAILED AND BECAME STIFF AND HARD TO TURN. THE VEHICLE WAS TAKEN TO THE DEALER FOR DIAGNOSTIC TESTING WHO CONFIRMED THERE WAS A PUNCTURED HOSE CAUSING THE STEERING TO FAIL. THE CONTACT ALSO MENTIONED ON A SEPARATE OCCASION THAT HE HEARD A SQUEALING NOISE AFTER THE BRAKES WERE DEPRESSED. THE FAILURE CAUSED THE BRAKES TO MALFUNCTION WHEN THEY WERE APPLIED. THE DEALER STATED THE BRAKES NEEDED TO BE REPLACED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 112,000 AND THE CURRENT MILEAGE WAS 114,000.
POWER COUPLING ON POWER STEERING MOTOR FAILED RESULTING IN LOSS OF STEERING AS I WAS DRIVING....DEALER LATER INFORMED ME THAT THIS WAS A DEFECT THAT HAD BEEN CORRECTED BUT I DID NOT SEE A RECALL POSTED. *NM
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 25, 2026