AI-generated · grounded in NHTSA data
Reliability & 5-year cost of ownership — 2006 Mercury Mariner Hev
Overall rating NHTSA-grounded
Below average
Estimated 5-year repair + maintenance cost: $4,000–$7,000
The 2006 Mercury Mariner HEV has a below-average reliability score due to electrical and brake system issues reported by owners. Although there are no recent recalls, the potential for these problems might lead to costly repairs over time.
Most-common failures
| Part | Typical mileage | Cost range | Frequency |
|---|---|---|---|
| electrical system | 50,000–80,000 miles | $500–$1,000 | common |
| service brakes | 60,000–90,000 miles | $300–$700 | common |
| fuel system | 70,000–100,000 miles | $200–$600 | occasional |
Scheduled maintenance to budget
Routine items every owner should plan for.
- Oil and filter changes
- Brake fluid replacement
- Tire rotation and balancing
- Battery inspection
- Air filter replacement
- Coolant flush
- Spark plug replacement
Warning signs to watch for
Symptoms that signal a major upcoming repair.
- Braking performance changes
- Electrical malfunctions
- Decreased fuel efficiency
- Reduced battery power
- Unusual engine noise
Generated by gpt-4o on 8/18/2026. Cost ranges are conservative estimates that account for typical regional variation.