2018 Toyota Mirai 1NZ-FXE (fuel cell system with hybrid components) (XW30)

Engine identity

Oils and fluids

Service and parts data

Common and chronic problems

• Fuel cell stack degradation over time expected with long-term use, but under warranty
• Hydrogen tank integrity critical; regular inspections required

First checks

• Inspect hydrogen tanks and fuel cell system for leaks or damage
• Check high-voltage electrical system and battery health

Antes de cambiar piezas

• 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

• 2018 Mirai sold mainly in Japan, US, and select European markets with small market availability differences.
• The Mirai uses a unique hydrogen fuel cell powertrain instead of a conventional engine.