AI-generated · grounded in NHTSA data
Reliability & 5-year cost of ownership — 2002 Porsche 911
Overall rating NHTSA-grounded
Average
Estimated 5-year repair + maintenance cost: $15,000–$25,000
The 2002 Porsche 911 has a moderate reliability profile, impacted by some engine complaints but few other systemic issues. Given its age, potential buyers should budget for typical wear-and-tear associated with older sports cars.
Most-common failures
| Part | Typical mileage | Cost range | Frequency |
|---|---|---|---|
| engine | 80,000–100,000 miles | $4,000–$8,000 | common |
| power train | 70,000–90,000 miles | $1,500–$3,000 | occasional |
| air bags | 90,000–120,000 miles | $800–$2,000 | rare |
Scheduled maintenance to budget
Routine items every owner should plan for.
- oil change every 5,000 miles
- brake fluid exchange biennially
- cooling system check annually
- transmission fluid change every 60,000 miles
Warning signs to watch for
Symptoms that signal a major upcoming repair.
- unusual engine noises
- difficulty shifting gears
- airbag warning light
- engine overheating
Generated by gpt-4o on 8/24/2026. Cost ranges are conservative estimates that account for typical regional variation.