FaultScore

Mercedes Benz SLK350 vs Mini Cooper Countryman

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 SLK350 Mini Cooper Countryman
Complaints on file 66 165
Model years covered 2005–2008 2011–2013
Worst model year 2005 2012
Best model year 2007 2013
Crashes reported 6 6
Fires reported 4 18
Injuries reported 6 0
Deaths reported 0 0
Most complained-about part Airbags Engine & Cooling
Share of complaints involving harm 24.2% 14.5%

Mercedes Benz SLK350 by year

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

What breaks

Airbags 14 21.2%
Transmission & Drivetrain 11 16.7%
Engine & Cooling 8 12.1%
Other & Unspecified 6 9.1%
Brakes 5 7.6%
Suspension 5 7.6%
Electrical System 3 4.5%
Acceleration & Cruise Control 3 4.5%

Mini Cooper Countryman 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 39 23.6%
Airbags 13 7.9%
Transmission & Drivetrain 11 6.7%
Other & Unspecified 10 6.1%
Fuel & Propulsion 8 4.8%
Windows, Mirrors & Wipers 8 4.8%
Seat Belts 8 4.8%