AI-generated · grounded in NHTSA data
Reliability & 5-year cost of ownership — 1998 Mazda Millenia
Overall rating NHTSA-grounded
Below average
Estimated 5-year repair + maintenance cost: $6,500–$12,000
The 1998 Mazda Millenia has multiple complaints involving the power train, engine, and fuel system, indicating reliability concerns. Limited complaints on other components suggest specific problem areas rather than widespread issues.
Most-common failures
| Part | Typical mileage | Cost range | Frequency |
|---|---|---|---|
| power train | 90,000–120,000 miles | $800–$1,800 | very common |
| engine cooling system | 80,000–110,000 miles | $600–$1,500 | common |
| fuel system | 75,000–105,000 miles | $300–$900 | common |
| vehicle speed control | 85,000–115,000 miles | $400–$1,200 | occasional |
| air bags | 100,000–130,000 miles | $500–$1,000 | rare |
Scheduled maintenance to budget
Routine items every owner should plan for.
- Oil and filter change every 5,000 miles
- Brake pads and rotors every 30,000 miles
- Transmission fluid change every 40,000 miles
- Coolant flush every 50,000 miles
- Timing belt replacement every 60,000 miles
Warning signs to watch for
Symptoms that signal a major upcoming repair.
- Unusual noises from transmission
- Engine overheating
- Fuel smell or leaks
- Erratic speed control behavior
- Air bag warning light on
Generated by gpt-4o on 8/18/2026. Cost ranges are conservative estimates that account for typical regional variation.