AI-generated · grounded in NHTSA data
Reliability & 5-year cost of ownership — 2003 Mazda Protege
Overall rating NHTSA-grounded
Average
Estimated 5-year repair + maintenance cost: $4,500–$6,500
The 2003 Mazda Protege is marked by an average reliability due largely to frequent engine-related complaints. Safety recalls were primarily aftermarket lighting issues, which are less critical. Engine, cooling, and seat belt complaints highlight potential concerns.
Most-common failures
| Part | Typical mileage | Cost range | Frequency |
|---|---|---|---|
| engine cooling | 90,000–120,000 miles | $400–$700 | common |
| seat belts | 80,000–110,000 miles | $150–$300 | common |
| suspension | 70,000–100,000 miles | $350–$600 | occasional |
Scheduled maintenance to budget
Routine items every owner should plan for.
- Oil and filter changes every 5,000 miles
- Brake fluid replacement every 2 years
- Tire rotation every 7,500 miles
- Coolant flush every 50,000 miles
Warning signs to watch for
Symptoms that signal a major upcoming repair.
- Overheating or coolant leaks
- Seat belt latching issues
- Uneven tire wear or noise
Generated by gpt-4o on 8/19/2026. Cost ranges are conservative estimates that account for typical regional variation.