2009 Audi A4: Reliability Data

Source: NHTSA — 150 complaints
150
Total Complaints
62,000mi
Median Mileage
ENGINE
Top Issue
7
Crash Reports

When Do Complaints Happen?

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

34,500 25th Percentile
62,000 Median Mileage
91,625 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

ENGINE
44
AIR BAGS
32
STEERING
15
FUEL/PROPULSION SYSTEM
7
UNKNOWN OR OTHER
7
ENGINE AND ENGINE COOLING
5
POWER TRAIN
5
EXTERIOR LIGHTING
4
VISIBILITY
4
STRUCTURE:BODY
4

Severity Assessment

7
Crashes
7
Fires
3
Injuries
0
Deaths

Sample Complaint Reports

"TL*THE CONTACT OWNS A 2009 AUDI A4. THE CONTACT STATED THAT THE STEERING WHEEL SHAKES WHEN MAKING TURNS AND WHILE THE VEHICLE IS STOPPED. IN ADDITION, THE EXTERIOR SIDE MIRRORS ARE DESIGNED WITH ALUMINUM INTERIOR, WHICH PROJECTS A GLARE. THE ONLY OBJECT THAT IS VISIBLE IS THE DASHBOARD. HE TOOK ..."
"TL*THE CONTACT OWNS A 2009 AUDI A4. THE CONTACT STATED THAT THE STEERING WHEEL SHAKES WHEN MAKING TURNS AND WHILE THE VEHICLE IS STOPPED. IN ADDITION, THE EXTERIOR SIDE MIRRORS ARE DESIGNED WITH ALUMINUM INTERIOR, WHICH PROJECTS A GLARE. THE ONLY OBJECT THAT IS VISIBLE IS THE DASHBOARD. HE TOOK ..."
"I HAD AN ACCIDENT IN MY AUDI A4 CONVERTIBLE AND THE DRIVER AIRBAG DID NOT DEPLOY. DUE TO SUN GLARE, I REAR-ENDED A MERCURY MOUNTAINEER WITH MY 2006 AUDI A4 CONVERTIBLE. I NEVER SAW HIS TAILLIGHTS, I WAS NOT MESSING WITH THE RADIO OR TALKING ON THE CELL PHONE. I WAS NOT CITED, ALTHOUGH THE ACCI..."

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