AI-generated · grounded in NHTSA data
Reliability & 5-year cost of ownership — 1998 Porsche 911
Overall rating NHTSA-grounded
Above average
Estimated 5-year repair + maintenance cost: $4,000–$6,500
The 1998 Porsche 911 has minimal recalls and few complaints, mostly related to a single airbag issue and minor component concerns, indicating a reliable vehicle history.
Most-common failures
| Part | Typical mileage | Cost range | Frequency |
|---|---|---|---|
| airbags | 80,000–100,000 miles | $200–$700 | common |
| exterior lighting | 75,000–95,000 miles | $150–$400 | occasional |
| service brakes | 80,000–100,000 miles | $250–$600 | rare |
Scheduled maintenance to budget
Routine items every owner should plan for.
- Oil and filter changes
- Brake fluid replacement
- Coolant system service
- Transmission fluid change
- Air filter replacement
- Spark plug replacement
Warning signs to watch for
Symptoms that signal a major upcoming repair.
- Airbag warning light
- Flickering exterior lights
- Unusual brake sounds
- Engine overheating
- Oil leakage under vehicle
Generated by gpt-4o on 8/18/2026. Cost ranges are conservative estimates that account for typical regional variation.