"How reliable is the 2020 Audi A4?"

"Based on 222 NHTSA complaints, the 2020 Audi A4 has a median complaint mileage of 0 miles. The most common issue is ELECTRICAL SYSTEM."

"What are common problems with the 2020 Audi A4?"

"The most frequently reported component in NHTSA complaints for the 2020 Audi A4 is ELECTRICAL SYSTEM, accounting for a significant portion of the 222 total complaints filed."

2020 Audi A4: Reliability Data

Source: NHTSA — 222 complaints

222

Total Complaints

ELECTRICAL SYSTEM

Top Issue

Crash Reports

What Fails?

Most reported component issues from NHTSA complaints.

ELECTRICAL SYSTEM

UNKNOWN OR OTHER

BACK OVER PREVENTION: WARNINGS

BACK OVER PREVENTION: REARVIEW SYSTEM BRAKING

FORWARD COLLISION AVOIDANCE: WARNINGS

LANE DEPARTURE: BLIND SPOT DETECTION

FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING

SUSPENSION

FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL

EXTERIOR LIGHTING

Severity Assessment

Crashes

Fires

Injuries

Deaths

Sample Complaint Reports

"The contact owns a 2020 Audi A4. The contact stated that while pulling out of a parking space, there was big rock next to the bumper on the front passenger's side of the vehicle and there was a scallop area with stones next to the passenger's side of the vehicle as well. The contact stated that she..."

"Emergency Call SOS module function is inoperative. Cannot use the SOS function and hands-free cell phone use through Bluetooth is also inoperative. Went to dealer on 8/31/22 for repair/replacement of module as instructed in Audi Service Action 90T2. I was told the repair is covered by the vehicle..."

"This safety issue concerns the MMI system. In my state of MA we cannot use a cell phone while driving. The car's MMI system does not connect to the MMI and hands free calling cannot be done. The dealership and Audi have indicated there is no fix for this. The MMI does not currently have any function..."

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