AI-generated · grounded in NHTSA data
Reliability & 5-year cost of ownership — 2005 Infiniti G35
Overall rating NHTSA-grounded
Below average
Estimated 5-year repair + maintenance cost: $8,000–$12,000
The 2005 Infiniti G35 has numerous complaints, particularly concerning airbags, engine, and electrical systems. Despite its performance reputation, these issues contribute to higher than average costs and reliability concerns.
Most-common failures
| Part | Typical mileage | Cost range | Frequency |
|---|---|---|---|
| airbags | 80,000–100,000 miles | $500–$1,200 | very common |
| engine | 70,000–100,000 miles | $1,500–$3,500 | common |
| electrical system | 60,000–90,000 miles | $300–$900 | common |
| exterior lighting | 50,000–80,000 miles | $150–$500 | occasional |
| brakes | 50,000–70,000 miles | $200–$600 | occasional |
Scheduled maintenance to budget
Routine items every owner should plan for.
- oil and filter changes
- spark plug replacement
- brake fluid change
- transmission fluid service
- coolant flush
- timing belt inspection
- tire rotations
Warning signs to watch for
Symptoms that signal a major upcoming repair.
- airbag warning light
- engine misfires
- dashboard electrical failures
- dim headlights
- brake warning light
Generated by gpt-4o on 8/20/2026. Cost ranges are conservative estimates that account for typical regional variation.