Porsche Cayenne vs Mercury Mariner
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 | Porsche Cayenne | Mercury Mariner |
|---|---|---|
| Complaints on file | 702 | 1,722 |
| Model years covered | 2003–2026 | 2005–2011 |
| Worst model year | 2014 | 2008 |
| Best model year | 2021 | 2007 |
| Crashes reported | 24 | 48 |
| Fires reported | 10 | 4 |
| Injuries reported | 16 | 32 |
| Deaths reported | 2 | 0 |
| Most complained-about part | Transmission & Drivetrain | Steering |
| Share of complaints involving harm | 7.4% | 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%
Mercury Mariner by year
What breaks
Steering
560
32.5%
Transmission & Drivetrain
235
13.6%
Engine & Cooling
193
11.2%
Acceleration & Cruise Control
180
10.5%
Fuel & Propulsion
147
8.5%
Electrical System
105
6.1%
Brakes
67
3.9%
Other & Unspecified
57
3.3%