AI-generated · grounded in NHTSA data
Reliability & 5-year cost of ownership — 2011 Mercury Mariner
Overall rating NHTSA-grounded
Below average
Estimated 5-year repair + maintenance cost: $5,000–$8,000
The 2011 Mercury Mariner presents below-average reliability with significant concern in fuel system and steering issues, according to recalls and owner complaints.
Most-common failures
| Part | Typical mileage | Cost range | Frequency |
|---|---|---|---|
| Fuel pump | 80,000–120,000 miles | $400–$700 | very common |
| Wheel bearings | 70,000–100,000 miles | $300–$500 | common |
| Power steering | 70,000–120,000 miles | $500–$900 | common |
| Transmission | 90,000–130,000 miles | $1,000–$2,500 | occasional |
Scheduled maintenance to budget
Routine items every owner should plan for.
- Oil and filter changes
- Brake pad and rotor replacement
- Coolant system flush
- Transmission fluid change
- Tire rotation and balance
- Belt and hose inspection
- Battery replacement
Warning signs to watch for
Symptoms that signal a major upcoming repair.
- Fuel smell inside cabin
- Steering stiffness
- Unusual noises when turning
- Vibration while driving
- Transmission slipping or rough shifts
Generated by gpt-4o on 8/24/2026. Cost ranges are conservative estimates that account for typical regional variation.