FaultScore

Mercedes Benz 560 vs Porsche Cayenne S

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 560 Porsche Cayenne S
Complaints on file 54 135
Model years covered 1985–1994 2003–2020
Worst model year 2004
Best model year 2011
Crashes reported 18 8
Fires reported 5 1
Injuries reported 13 5
Deaths reported 0 0
Most complained-about part Acceleration & Cruise Control Engine & Cooling
Share of complaints involving harm 66.7% 10.4%

Mercedes Benz 560 by year

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

What breaks

Acceleration & Cruise Control 17 31.5%
Engine & Cooling 8 14.8%
Airbags 7 13.0%
Brakes 5 9.3%
Electrical System 3 5.6%
Fuel & Propulsion 3 5.6%
Transmission & Drivetrain 2 3.7%
Windows, Mirrors & Wipers 2 3.7%

Porsche Cayenne S 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 42 31.1%
Fuel & Propulsion 15 11.1%
Electrical System 8 5.9%
Tires 8 5.9%
Brakes 5 3.7%
Lights 5 3.7%
Doors, Latches & Locks 5 3.7%