Mercedes Benz 600 vs BMW X4

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 600 BMW X4
Complaints on file 57 140
Model years covered 1992–2001 2015–2025
Worst model year 2001 2015
Best model year 1994 2016
Crashes reported 8 17
Fires reported 3 8
Injuries reported 3 4
Deaths reported 0 0
Most complained-about part Electrical System Engine & Cooling
Share of complaints involving harm 24.6% 20.7%

Mercedes Benz 600 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 9 15.8%
Transmission & Drivetrain 3 5.3%
Brakes 3 5.3%
Fuel & Propulsion 3 5.3%
Acceleration & Cruise Control 2 3.5%
Lights 2 3.5%
Windows, Mirrors & Wipers 2 3.5%

BMW X4 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 28 20.0%
Brakes 14 10.0%
Other & Unspecified 14 10.0%
Transmission & Drivetrain 11 7.9%
Driver Assist & Collision Avoidance 8 5.7%
Airbags 7 5.0%
Suspension 6 4.3%