FaultScore

Lexus LS400 vs Mercedes Benz GLK350

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 Lexus LS400 Mercedes Benz GLK350
Complaints on file 424 1,046
Model years covered 1990–2001 2006–2015
Worst model year 1993 2015
Best model year 2000 2011
Crashes reported 58 58
Fires reported 8 20
Injuries reported 33 33
Deaths reported 0 6
Most complained-about part Electrical System Airbags
Share of complaints involving harm 23.3% 11.2%

Lexus LS400 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 131 30.9%
Brakes 26 6.1%
Lights 26 6.1%
Seat Belts 25 5.9%
Airbags 20 4.7%
Tires 20 4.7%
Engine & Cooling 18 4.2%

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%