2018 Audi A4: Reliability Data

Source: NHTSA — 36 complaints
36
Total Complaints
14,000mi
Median Mileage
UNKNOWN OR OTHER
Top Issue
1
Crash Reports

When Do Complaints Happen?

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

11,000 25th Percentile
14,000 Median Mileage
14,000 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

UNKNOWN OR OTHER
7
POWER TRAIN
4
ELECTRICAL SYSTEM
4
SERVICE BRAKES
3
AIR BAGS
3
ENGINE
3
FUEL/PROPULSION SYSTEM
2
FORWARD COLLISION AVOIDANCE: WARNINGS
2
STRUCTURE:BODY
1
ELECTRONIC STABILITY CONTROL (ESC)
1

Severity Assessment

1
Crashes
0
Fires
0
Injuries
0
Deaths

Sample Complaint Reports

"NEW FACTORY BRAKES MAKE VERY LOUD AUDIBLE SCREECHING SOUND WHEN COMING TO A STOP.THIS HAPPENS JUST BEFORE COMING TO A COMPLETE STOP AND SOMETIMES IN THE BEGINNING OF BREAKING. MECHANIC HAS WORKED ON THIS ISSUE SEVERAL TIMES AND REORDERED BRAKES FROM LOCAL AUDI DEALERSHIP AND IT IS STILL MAKING THE S..."
"FRONT OF BODY RIDES TOO LOW TO GROUND. BODY DAMAGE OCCURRED ON LEFT FRONT FENDER FROM DRIVING UP A STEEP HILL AFTER MAKING LEFT TURN ONTO ROAD WITH THE STEEP HILL. *TR"
"I WENT TO PRESS THE BUTTON TO DISABLE START/STOP MODE. THE BUTTON TO DO THIS IS NEXT TO THE ELECTRONIC STABILITY CONTROL BUTTON. I ACCIDENTALLY PRESSED THE ESC BUTTON AND SHUT OF ELECTRONIC STABILITY. **THESE TWO BUTTONS SHOULD NOT BE NEXT TO EACH OTHER. ** THERE SHOULD BE A WAY TO DEFAULT T..."

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