AI-generated · grounded in NHTSA data
Reliability & 5-year cost of ownership — 2008 Porsche Cayenne
Overall rating NHTSA-grounded
Below average
Estimated 5-year repair + maintenance cost: $8,000–$14,000
The 2008 Porsche Cayenne faces notable issues including a recalled fuel line defect and common electrical and powertrain complaints. Such factors lead to increased ownership costs.
Most-common failures
| Part | Typical mileage | Cost range | Frequency |
|---|---|---|---|
| fuel line | 60,000–90,000 miles | $700–$1,200 | very common |
| electrical system | 50,000–80,000 miles | $300–$800 | common |
| power train | 70,000–100,000 miles | $1,500–$3,000 | common |
| engine components | 80,000–110,000 miles | $1,000–$5,000 | occasional |
Scheduled maintenance to budget
Routine items every owner should plan for.
- Oil change every 7,500 miles
- Replace brake pads every 30,000 miles
- Transmission fluid change every 40,000 miles
- Inspect timing chain at 100,000 miles
- Coolant flush every 40,000 miles
Warning signs to watch for
Symptoms that signal a major upcoming repair.
- Fuel odor from engine area
- Dashboard warning lights
- Transmission slipping or rough shifts
- Engine knocking sounds
Generated by gpt-4o on 8/24/2026. Cost ranges are conservative estimates that account for typical regional variation.