Kenworth T680 vs Mercedes Benz S430

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 Kenworth T680 Mercedes Benz S430
Complaints on file 115 282
Model years covered 2014–2027 2000–2006
Worst model year 2019 2001
Best model year 2020 2004
Crashes reported 6 7
Fires reported 15 11
Injuries reported 5 3
Deaths reported 0 0
Most complained-about part Brakes Electrical System
Share of complaints involving harm 22.6% 7.4%

Kenworth T680 by year

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

What breaks

Brakes 23 20.0%
Transmission & Drivetrain 17 14.8%
Windows, Mirrors & Wipers 12 10.4%
Engine & Cooling 10 8.7%
Electrical System 8 7.0%
Fuel & Propulsion 7 6.1%
Driver Assist & Collision Avoidance 7 6.1%
Acceleration & Cruise Control 5 4.3%

Mercedes Benz S430 by year

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

What breaks

Electrical System 106 37.6%
Lights 38 13.5%
Suspension 31 11.0%
Transmission & Drivetrain 17 6.0%
Acceleration & Cruise Control 14 5.0%
Body & Structure 11 3.9%
Windows, Mirrors & Wipers 10 3.5%
Engine & Cooling 7 2.5%