FaultScore

Mazda CX-30 vs Audi A3

Both cars' complete complaint records, side by side.

Read the totals carefully. NHTSA publishes no sales figures, so the car that sold more collects more complaints regardless of quality. The rows worth weighing are the proportions — the share of complaints that involved harm, and which part dominates.

Measure Mazda CX-30 Audi A3
Complaints on file 380 945
Model years covered 2020–2026 2001–2025
Worst model year 2021 2016
Best model year 2025 2023
Crashes reported 50 33
Fires reported 1 9
Injuries reported 23 22
Deaths reported 0 0
Most complained-about part Engine & Cooling Airbags
Share of complaints involving harm 19.5% 6.8%

Mazda CX-30 by year

Complaints filed with NHTSA, by model year. Bar colour is the FaultScore grade: A B C D F ungraded

What breaks

Engine & Cooling 67 17.6%
Brakes 33 8.7%
Windows, Mirrors & Wipers 21 5.5%
Transmission & Drivetrain 16 4.2%
Airbags 15 3.9%

Audi A3 by year

Complaints filed with NHTSA, by model year. Bar colour is the FaultScore grade: A B C D F ungraded

What breaks

Airbags 339 35.9%
Fuel & Propulsion 115 12.2%
Lights 30 3.2%
Seat Belts 20 2.1%