2003 MAZDA Protege FS-DE/Z5-DE (BJ)
BJ / Sedan / Hatchback / Wagon / North America, Asia, Australia; variations exist by region
FS-DEZ5-DEExact year/trim recordGold
Engine identity
Oils and fluids
Service and parts data
Common and chronic problems
- Rear wheel bearing wear
- Automatic transmission valve body issues
- Ignition coil failure
First checks
- Inspect timing chain tension
- Check ignition coil and spark plug condition
Before replacing parts
- Save fault codes and freeze-frame data before clearing anything.
- Check engine oil, coolant and transmission fluid using the correct temperature and service procedure.
- Verify power, ground, connectors, hoses, leaks and live data before replacing expensive parts.
Important notes
- 2003 model year Protege belongs to the BJ generation (1999–2003 globally).
- Engine and available transmissions may vary depending on market; North America featured FS-DE engine mainly.