Mercedes Benz GLS 450 4MATIC vs Ford Redundant C-Max Hybrid

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 GLS 450 4MATIC Ford Redundant C-Max Hybrid
Complaints on file 79 196
Model years covered 2022–2025 2013–2015
Worst model year 2022 —
Best model year 2023 —
Crashes reported 18 12
Fires reported 1 0
Injuries reported 4 8
Deaths reported 0 0
Most complained-about part Driver Assist & Collision Avoidance Electrical System
Share of complaints involving harm 29.1% 10.2%

Mercedes Benz GLS 450 4MATIC by year

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 17 21.5%
Other & Unspecified 11 13.9%
Electrical System 10 12.7%
Engine & Cooling 9 11.4%
Brakes 8 10.1%
Transmission & Drivetrain 4 5.1%
Wheels 4 5.1%
Acceleration & Cruise Control 3 3.8%

Ford Redundant C-Max Hybrid 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 18 9.2%
Transmission & Drivetrain 18 9.2%
Steering 17 8.7%
Body & Structure 14 7.1%
Doors, Latches & Locks 11 5.6%
Brakes 9 4.6%
Driver Assist & Collision Avoidance 9 4.6%