FaultScore

Forest River Surveyor vs Mercedes Benz CLS500

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 Forest River Surveyor Mercedes Benz CLS500
Complaints on file 35 87
Model years covered 2004–2021 2004–2009
Worst model year
Best model year
Crashes reported 0 5
Fires reported 0 0
Injuries reported 0 3
Deaths reported 0 0
Most complained-about part Equipment & Accessories Fuel & Propulsion
Share of complaints involving harm 0% 9.2%

Forest River Surveyor by year

04 12 13 14 15 17 18 19 20 21
Complaints filed with NHTSA, by model year. Bar colour is the FaultScore grade: A B C D F ungraded

What breaks

Equipment & Accessories 8 22.9%
Tires 6 17.1%
Other & Unspecified 6 17.1%
Body & Structure 5 14.3%
Suspension 5 14.3%
Wheels 3 8.6%
Electrical System 1 2.9%
Lights 1 2.9%

Mercedes Benz CLS500 by year

04 06 07 09
Complaints filed with NHTSA, by model year. Bar colour is the FaultScore grade: A B C D F ungraded

What breaks

Brakes 24 27.6%
Airbags 6 6.9%
Transmission & Drivetrain 4 4.6%
Electrical System 4 4.6%
Acceleration & Cruise Control 4 4.6%
Wheels 4 4.6%
Engine & Cooling 3 3.4%