FaultScore

Mercedes Benz S550 vs Mitsubishi Montero Sport

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 S550 Mitsubishi Montero Sport
Complaints on file 184 452
Model years covered 2010–2017 1997–2009
Worst model year 2015 2000
Best model year 2016 1997
Crashes reported 19 77
Fires reported 11 13
Injuries reported 13 55
Deaths reported 0 4
Most complained-about part Other & Unspecified Engine & Cooling
Share of complaints involving harm 23.4% 33%

Mercedes Benz S550 by year

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

What breaks

Other & Unspecified 24 13.0%
Steering 18 9.8%
Fuel & Propulsion 16 8.7%
Body & Structure 15 8.2%
Windows, Mirrors & Wipers 13 7.1%
Seat Belts 12 6.5%
Engine & Cooling 11 6.0%
Electrical System 11 6.0%

Mitsubishi Montero Sport 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 70 15.5%
Brakes 64 14.2%
Airbags 42 9.3%
Steering 32 7.1%
Suspension 28 6.2%