FaultScore

Mercedes Benz GLK350 vs Ford Flex

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 GLK350 Ford Flex
Complaints on file 1,046 2,511
Model years covered 2006–2015 2009–2019
Worst model year 2015 2009
Best model year 2011 2017
Crashes reported 58 105
Fires reported 20 18
Injuries reported 33 74
Deaths reported 6 3
Most complained-about part Airbags Electrical System
Share of complaints involving harm 11.2% 8%

Mercedes Benz GLK350 by year

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

What breaks

Airbags 624 59.7%
Brakes 37 3.5%
Steering 34 3.3%
Suspension 25 2.4%

Ford Flex by year

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

What breaks