AI-generated · grounded in NHTSA data
Reliability & 5-year cost of ownership — 2007 Mercury Mariner
Overall rating NHTSA-grounded
Average
Estimated 5-year repair + maintenance cost: $5,000–$8,000
The 2007 Mercury Mariner has a moderate history of powertrain and electrical issues, but no critical, widespread safety problems. While recalls indicate potential transmission and suspension concerns, common failures are usually manageable without excessive cost, keeping overall reliability average.
Most-common failures
| Part | Typical mileage | Cost range | Frequency |
|---|---|---|---|
| powertrain | 70,000–100,000 miles | $800–$1,500 | common |
| wheel bearings | 60,000–90,000 miles | $300–$500 | common |
| hybrid coolant pump | 80,000–110,000 miles | $400–$750 | occasional |
Scheduled maintenance to budget
Routine items every owner should plan for.
- Oil and filter changes every 5,000 miles
- Brake fluid replacement every 2 years
- Tire rotation every 5,000 miles
- Air filter replacement every 30,000 miles
- Spark plugs replacement every 100,000 miles
Warning signs to watch for
Symptoms that signal a major upcoming repair.
- Transmission slippage
- Unusual noises from front wheels
- Hybrid system overheating
- Check engine light for powertrain issues
Generated by gpt-4o on 8/24/2026. Cost ranges are conservative estimates that account for typical regional variation.