FaultScore

BMW 525 vs Mercedes Benz C Class

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 525 Mercedes Benz C Class
Complaints on file 101 249
Model years covered 1985–2001 1991–2006
Worst model year 1995
Best model year 2000
Crashes reported 20 8
Fires reported 7 16
Injuries reported 9 10
Deaths reported 0 1
Most complained-about part Electrical System Electrical System
Share of complaints involving harm 35.6% 14.1%

BMW 525 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 16 15.8%
Airbags 12 11.9%
Acceleration & Cruise Control 12 11.9%
Engine & Cooling 10 9.9%
Transmission & Drivetrain 7 6.9%
Windows, Mirrors & Wipers 7 6.9%
Steering 5 5.0%
Brakes 5 5.0%

Mercedes Benz C Class 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 26 10.4%
Fuel & Propulsion 16 6.4%
Transmission & Drivetrain 15 6.0%
Brakes 11 4.4%
Suspension 11 4.4%
Seats 10 4.0%
Airbags 9 3.6%