AI-generated · grounded in NHTSA data
Reliability & 5-year cost of ownership — 2004 Mazda Mazda6
Overall rating NHTSA-grounded
Below average
Estimated 5-year repair + maintenance cost: $4,500–$9,000
The 2004 Mazda Mazda6 suffers from recurring airbag recall issues, which significantly impact its safety rating. Common complaints involve the power train and electrical system, hinting at reliability concerns. Owners often face issues with airbag inflators, potentially leading to costly repairs.
Most-common failures
| Part | Typical mileage | Cost range | Frequency |
|---|---|---|---|
| Airbag inflator | Varies | $300–$1,000 | very common |
| Power train | 90,000–120,000 miles | $600–$2,000 | common |
| Electrical system | 80,000–110,000 miles | $200–$700 | common |
| Engine cooling system | 70,000–100,000 miles | $300–$1,200 | occasional |
| Brakes | 50,000–80,000 miles | $250–$550 | occasional |
Scheduled maintenance to budget
Routine items every owner should plan for.
- Oil changes every 5,000 miles
- Brake fluid replaced every 2 years
- Coolant replacement every 4 years
- Transmission fluid change
- Spark plug replacement
- Brake pad and rotor inspection
- Routine battery check
Warning signs to watch for
Symptoms that signal a major upcoming repair.
- Airbag warning light
- Strange engine noises
- Delayed gear shifting
- Electrical malfunctions
- Overheating or coolant leaks
Generated by gpt-4o on 6/17/2026. Cost ranges are conservative estimates that account for typical regional variation.