AI-generated · grounded in NHTSA data
Reliability & 5-year cost of ownership — 2003 Mazda Mazda6
Overall rating NHTSA-grounded
Below average
Estimated 5-year repair + maintenance cost: $5,000–$8,000
The 2003 Mazda Mazda6 has several recalls, primarily concerning airbag and exterior lighting issues, and significant owner complaints related to powertrain and engine cooling. These concerns, alongside common failures, contribute to a below-average reliability rating.
Most-common failures
| Part | Typical mileage | Cost range | Frequency |
|---|---|---|---|
| fuel system | 50,000–100,000 miles | $500–$1,000 | common |
| engine cooling system | 60,000–120,000 miles | $400–$800 | common |
| powertrain | 80,000–130,000 miles | $1,000–$2,500 | occasional |
| electrical system | 70,000–110,000 miles | $200–$600 | occasional |
| service brakes | 60,000–100,000 miles | $300–$700 | occasional |
Scheduled maintenance to budget
Routine items every owner should plan for.
- Oil and filter change every 5,000 miles
- Brake inspection every 10,000 miles
- Coolant flush every 2 years
- Transmission fluid replacement every 30,000 miles
- Tire rotation and balance every 5,000 miles
Warning signs to watch for
Symptoms that signal a major upcoming repair.
- Unusual engine noises
- Fuel smell inside cabin
- Warning lights on dashboard
- Reduced braking efficiency
- Odd transmission shifts
Generated by gpt-4o on 6/17/2026. Cost ranges are conservative estimates that account for typical regional variation.