2009 Mercury Mariner problems by component
315 owner complaints filed with NHTSA for the 2009 Mercury Mariner, grouped by the component owners reported. Each component links to a detailed breakdown with mileage, severity and owner reports.
| Component | Complaints | Share | Median mileage |
|---|---|---|---|
| Steering → | 167 | 53% | 119,794 mi |
| Engine → | 53 | 17% | 73,000 mi |
| Power Train → | 44 | 14% | 69,000 mi |
| Vehicle Speed Control → | 41 | 13% | 70,000 mi |
| Electrical System → | 22 | 7% | 98,291 mi |
| Fuel/propulsion System → | 15 | 5% | 80,500 mi |
| Fuel System, Gasoline → | 15 | 5% | 70,000 mi |
| Service Brakes → | 11 | 3% | — |
| Engine and Engine Cooling | 7 | 2% | — |
| Wheels | 7 | 2% | — |
| Air Bags | 4 | 1% | — |
| Electronic Stability Control (esc) | 4 | 1% | — |
| Service Brakes, Hydraulic | 3 | 1% | — |
| Structure | 3 | 1% | — |
| Suspension | 3 | 1% | — |
| Exterior Lighting | 2 | 1% | — |
| Lane Departure | 2 | 1% | — |
| Equipment | 1 | 0% | — |
| Latches/locks/linkages | 1 | 0% | — |
| Seat Belts | 1 | 0% | — |
| Visibility | 1 | 0% | — |
Component groups as classified by NHTSA. A complaint can name more than one component, so shares may sum to more than 100%.