FaultScore

Mercedes Benz A 220 vs Infiniti Q45

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 Mercedes Benz A 220 Infiniti Q45
Complaints on file 124 307
Model years covered 2019–2022 1990–2005
Worst model year 2020 1994
Best model year 2021 1997
Crashes reported 3 37
Fires reported 5 15
Injuries reported 4 24
Deaths reported 0 0
Most complained-about part Electrical System Electrical System
Share of complaints involving harm 9.7% 24.8%

Mercedes Benz A 220 by year

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

What breaks

Electrical System 24 19.4%
Other & Unspecified 22 17.7%
Engine & Cooling 19 15.3%
Driver Assist & Collision Avoidance 15 12.1%
Fuel & Propulsion 11 8.9%
Transmission & Drivetrain 7 5.6%
Airbags 6 4.8%
Steering 5 4.0%

Infiniti Q45 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 33 10.7%
Airbags 28 9.1%
Brakes 21 6.8%
Suspension 20 6.5%
Acceleration & Cruise Control 19 6.2%
Fuel & Propulsion 15 4.9%