FaultScore

Mercedes Benz C350 vs Infiniti I30

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 C350 Infiniti I30
Complaints on file 138 345
Model years covered 2010–2017 1996–2004
Worst model year 2010 2001
Best model year 2013 1997
Crashes reported 4 38
Fires reported 2 19
Injuries reported 3 19
Deaths reported 0 0
Most complained-about part Airbags Airbags
Share of complaints involving harm 6.5% 22%

Mercedes Benz C350 by year

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

What breaks

Airbags 80 58.0%
Fuel & Propulsion 10 7.2%
Other & Unspecified 8 5.8%
Engine & Cooling 7 5.1%
Transmission & Drivetrain 6 4.3%
Electrical System 6 4.3%
Body & Structure 5 3.6%
Steering 4 2.9%

Infiniti I30 by year

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

What breaks

Airbags 53 15.4%
Suspension 33 9.6%
Brakes 31 9.0%
Body & Structure 24 7.0%
Transmission & Drivetrain 17 4.9%