1999 MAZDA MX-5 BP-ZE/BP-4W (NB)

Engine identity

Oils and fluids

Service and parts data

Common and chronic problems

• Soft top seal leaks
• Crank angle sensor failure (occasional)
• Rust on sills and wheel arches

First checks

• Check timing belt age and condition
• Inspect soft top and seals
• Verify engine oil level and leaks

Avant de remplacer des pièces

• 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

• 1999 model year corresponds to NB generation with multiple engine variations by market
• Japan generally had the 1.6L BP-ZE; Europe and North America mostly had 1.8L BP-4W