AI-generated · grounded in NHTSA data
Reliability & 5-year cost of ownership — 2007 Infiniti M45
Overall rating NHTSA-grounded
Below average
Estimated 5-year repair + maintenance cost: $6,000–$10,000
The 2007 Infiniti M45 has a below-average reliability largely due to air bag, engine, and steering issues. These have been frequent enough in complaints to warrant concern.
Most-common failures
| Part | Typical mileage | Cost range | Frequency |
|---|---|---|---|
| air bags | 70,000–100,000 miles | $700–$1,200 | very common |
| engine | 100,000–130,000 miles | $2,000–$4,500 | common |
| steering | 80,000–110,000 miles | $500–$900 | common |
| seats | 80,000–100,000 miles | $250–$500 | occasional |
Scheduled maintenance to budget
Routine items every owner should plan for.
- oil change every 5,000 miles
- brake fluid every 30,000 miles
- transmission service every 60,000 miles
- coolant flush every 30,000 miles
- replace spark plugs every 100,000 miles
Warning signs to watch for
Symptoms that signal a major upcoming repair.
- airbag warning light
- steering looseness
- engine noises
- seat adjustment issues
Generated by gpt-4o on 8/20/2026. Cost ranges are conservative estimates that account for typical regional variation.