Mercedes Benz 300 vs Porsche Cayenne
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 300 | Porsche Cayenne |
|---|---|---|
| Complaints on file | 288 | 702 |
| Model years covered | 1978–2002 | 2003–2026 |
| Worst model year | 1993 | 2014 |
| Best model year | 1997 | 2021 |
| Crashes reported | 17 | 24 |
| Fires reported | 14 | 10 |
| Injuries reported | 26 | 16 |
| Deaths reported | 1 | 2 |
| Most complained-about part | Electrical System | Transmission & Drivetrain |
| Share of complaints involving harm | 20.1% | 7.4% |
Mercedes Benz 300 by year
What breaks
Electrical System
54
18.8%
Engine & Cooling
53
18.4%
Airbags
26
9.0%
Transmission & Drivetrain
24
8.3%
Acceleration & Cruise Control
20
6.9%
Brakes
18
6.3%
Tires
17
5.9%
Fuel & Propulsion
14
4.9%
Porsche Cayenne by year
What breaks
Transmission & Drivetrain
116
16.5%
Engine & Cooling
87
12.4%
Other & Unspecified
87
12.4%
Fuel & Propulsion
83
11.8%
Electrical System
79
11.3%
Airbags
62
8.8%
Lights
35
5.0%