FaultScore

BMW 535I vs Mercedes Benz C300

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 BMW 535I Mercedes Benz C300
Complaints on file 722 1,788
Model years covered 1986–2016 2008–2009
Worst model year 2011
Best model year 2016
Crashes reported 37 47
Fires reported 30 53
Injuries reported 23 41
Deaths reported 0 0
Most complained-about part Engine & Cooling Airbags
Share of complaints involving harm 12.5% 7.9%

BMW 535I 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 167 23.1%
Fuel & Propulsion 146 20.2%
Airbags 51 7.1%
Lights 43 6.0%
Acceleration & Cruise Control 21 2.9%

Mercedes Benz C300 by year

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

What breaks

Airbags 459 25.7%
Electrical System 428 23.9%
Steering 273 15.3%
Lights 228 12.8%
Suspension 49 2.7%
Brakes 38 2.1%