FaultScore

Mercedes Benz ML430 vs Smart Fortwo

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 ML430 Smart Fortwo
Complaints on file 194 475
Model years covered 1990–2001 2005–2019
Worst model year 2000 2008
Best model year 2001 2017
Crashes reported 12 28
Fires reported 3 68
Injuries reported 7 22
Deaths reported 0 1
Most complained-about part Brakes Engine & Cooling
Share of complaints involving harm 11.3% 25.1%

Mercedes Benz ML430 by year

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

What breaks

Brakes 42 21.6%
Steering 28 14.4%
Engine & Cooling 24 12.4%
Electrical System 16 8.2%
Stability & Traction Control 15 7.7%
Acceleration & Cruise Control 14 7.2%
Transmission & Drivetrain 13 6.7%
Fuel & Propulsion 10 5.2%

Smart Fortwo 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 106 22.3%
Seat Belts 35 7.4%
Brakes 20 4.2%