FaultScore

Volvo VNL770 vs Mercedes Benz SLK

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 Volvo VNL770 Mercedes Benz SLK
Complaints on file 39 96
Model years covered 1999–2000 1998–2009
Worst model year 2002
Best model year 2003
Crashes reported 1 2
Fires reported 0 0
Injuries reported 1 3
Deaths reported 0 0
Most complained-about part Suspension Windows, Mirrors & Wipers
Share of complaints involving harm 5.1% 5.2%

Volvo VNL770 by year

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

What breaks

Suspension 7 17.9%
Windows, Mirrors & Wipers 5 12.8%
Electrical System 4 10.3%
Steering 4 10.3%
Brakes 4 10.3%
Other & Unspecified 4 10.3%
Transmission & Drivetrain 3 7.7%
Body & Structure 3 7.7%

Mercedes Benz SLK by year

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

What breaks

Windows, Mirrors & Wipers 18 18.8%
Electrical System 13 13.5%
Lights 12 12.5%
Transmission & Drivetrain 9 9.4%
Engine & Cooling 7 7.3%
Brakes 7 7.3%
Acceleration & Cruise Control 7 7.3%
Stability & Traction Control 7 7.3%