FaultScore

Subaru Trailseeker vs Mercedes Benz CLS550

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 Subaru Trailseeker Mercedes Benz CLS550
Complaints on file 33 82
Model years covered 2026–2026 2006–2009
Worst model year 2007
Best model year 2006
Crashes reported 0 1
Fires reported 0 1
Injuries reported 0 4
Deaths reported 0 0
Most complained-about part Electrical System Fuel & Propulsion
Share of complaints involving harm 0% 7.3%

Subaru Trailseeker by year

26
Complaints filed with NHTSA, by model year. Bar colour is the FaultScore grade: A B C D F ungraded

What breaks

Driver Assist & Collision Avoidance 2 6.1%
Transmission & Drivetrain 1 3.0%
Brakes 1 3.0%
Lights 1 3.0%
Fuel & Propulsion 1 3.0%
Other & Unspecified 1 3.0%

Mercedes Benz CLS550 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 6 7.3%
Transmission & Drivetrain 6 7.3%
Electrical System 6 7.3%
Suspension 6 7.3%
Airbags 5 6.1%
Brakes 4 4.9%
Other & Unspecified 4 4.9%