2010 Audi S4: Reliability Data

Source: NHTSA — 73 complaints
73
Total Complaints
63,000mi
Median Mileage
POWER TRAIN
Top Issue
2
Crash Reports

When Do Complaints Happen?

Distribution of NHTSA complaints by vehicle mileage at time of report.

42,000 25th Percentile
63,000 Median Mileage
79,000 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

POWER TRAIN
42
ELECTRICAL SYSTEM
6
ENGINE AND ENGINE COOLING:COOLING SYSTEM
6
ENGINE AND ENGINE COOLING
5
ENGINE
4
UNKNOWN OR OTHER
2
EXTERIOR LIGHTING
2
VEHICLE SPEED CONTROL
2
SERVICE BRAKES
2
STEERING
1

Severity Assessment

2
Crashes
0
Fires
0
Injuries
0
Deaths

Sample Complaint Reports

"I AM WRITING TO COMPLAIN ABOUT A DESIGN FLAW THAT HAS BEEN IDENTIFIED IN THE WATERPUMP USED IN THE 2010 AUDI S4 3.0T. SEVERAL OWNERS HAVE EXPERIENCED A WATERPUMP FAILURE WHICH RESULTS IN THE VEHICLE OVERHEATING AND PARTIAL OR FULL LOSS OF POWER STEERING. OWNERS WHO HAVE EXPERIENCED FAILURE HAVE HA..."
"THIS HAS BEEN A KNOWN ISSUE TO MANY 2010 AUDI S4 OWNERS. MANY OF THEM REPORTED A WATERPUMP FAILURE BASICALLY UNDER ANY CIRCUMSTANCES, I.E., HIGHWAY DRIVING, CORNERING, AND LOW SPEED DRIVING. 2010 AUDI S4 PRODUCED IN 2009 CLEARLY HAVE A DEFECTIVE WATER PUMP, WHICH TEND TO MOSTLY FAIL PRIOR TO 10K MIL..."
"2010 AUDI S4 WATER PUMP FAILURE -- THIS COMPLAINT IS IDENTICAL TO THE PREVIOUS TWO COMPLAINTS SURROUNDING THIS MODEL'S WATER PUMP FAILURE. IT SHOULD BE NOTED THAT A NEAR FULL LOSS OF STEERING DIRECTLY RELATED TO THIS FAILURE OCCURRED AT THE SAME TIME. IN MY CASE THE CAR HAS BEEN REPAIRED, HOWEVER..."

Source: NHTSA ODI Complaints Database. Names and identifying details omitted.

Data source: View this vehicle on NHTSA.gov | NHTSA ODI Complaints Database. Public domain.

Methodology: Complaint counts and mileage distributions are computed directly from consumer-reported NHTSA complaints. This data represents reported issues, not failure rates — vehicles without complaints are not represented. Full methodology.

Data through: 2026-03-28