"How reliable is the 2003 Audi A4?"

"Based on 282 NHTSA complaints, the 2003 Audi A4 has a median complaint mileage of 63000 miles. The most common issue is FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP."

"What are common problems with the 2003 Audi A4?"

"The most frequently reported component in NHTSA complaints for the 2003 Audi A4 is FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP, accounting for a significant portion of the 282 total complaints filed."

2003 Audi A4: Reliability Data

Source: NHTSA — 282 complaints

282

Total Complaints

63,000mi

Median Mileage

FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP

Top Issue

Crash Reports

When Do Complaints Happen?

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

40,000 25th Percentile

63,000 Median Mileage

90,039 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP

EXTERIOR LIGHTING

POWER TRAIN:AUTOMATIC TRANSMISSION

POWER TRAIN

ELECTRICAL SYSTEM

VEHICLE SPEED CONTROL

FUEL SYSTEM, GASOLINE

ENGINE AND ENGINE COOLING

ELECTRICAL SYSTEM:IGNITION

AIR BAGS

Severity Assessment

Crashes

Fires

Injuries

Deaths

Sample Complaint Reports

"2003 AUDI A4 3.0 QUATTRO. THE CAR HAS PROBLEM WITH OUTSIDE MIRRORS. BOTH MIRRORS AREN'T ADJUST TO ITS POSITION THAT IS SET IN MEMORY. EVERYTIME THE CAR WAS USED BY MY SPOUSE, I HAVE TO MANUALLY READJUST BOTH MIRROS INSTEAD OF AUTOMATICALLY ADJUST BY WHAT WAS PROGRAMMED IN MEMORY. MORE OVER, THE..."

"THE PARKING BRAKE FAILED TO HOLD AND CAUSED AN ACCIDENT. *JB *SCC *JB"

"WHEN STEERING WHEEL IS TURNED TO LEFT OR RIGHT AND GRINDING/GROANING NOISE CAN BE HEARD. I HAVE TAKEN THE CAR IN 4 TIMES AND THEY ARE UNABLE TO FIX THE PROBLEM.*JB"

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