01
Engine & identification
Vehicle identification
Combined ignition and fuel ECM No Diagnostic socket Yes
02
Engine oil & fluids
Coolant
See the reference table for the complete coolant entries and their conditions.
Grades, filling conditions and capacities
Lubricants and capacities — complete reference
Other lubricants and capacities
Automatic transmission fluid Type
Toyota ATF WS
Automatic transmission (drain & refill) litres
4.2
Do not drive vehicle in inspection mode as damage to the vehicle may occur.
Coolant Type
Super long life
Coolant Colour
Pink
Cooling system - total capacity litres
19.6
Cooling system
Brake fluid Type
DOT 3/4
03
Brakes & wear limits
Brake disc thickness
Brake discs on the Toyota Mirai FCEV (2015–2020) are replaced at a minimum thickness of 25 mm (ventilated) front and 10,5 mm rear.
Minimum disc thickness for replacement - ventilated Front 25 mm Minimum disc thickness for replacement Rear 10,5 mm
Brake disc and drum dimensions
Disc runout Front 0,05 mm Disc runout Rear 0,15 mm Minimum pad thickness Front 1 mm Minimum pad thickness Rear 1 mm Parking brake travel No. of notches 7-10
04
Service & electrical
Fuel system
Engine coolant temperature (ECT) sensor Ohm/°C 2280-2630/20
05
Tightening torques
Chassis tightening torques Front hub 292 Nm
Front hub - wheel bearing housing bolts 96 Nm Rear hub - wheel bearing housing bolts 90 Nm Steering wheel 50 Nm Steering rack/box mounting 110 Nm Steering track rod end 49 Nm
Steering track rod end Brake caliper to carrier Front 34 Nm
Brake caliper/carrier to hub Front 107 Nm Brake caliper to carrier Rear 27 Nm Brake caliper/carrier to hub Rear 72 Nm ABS sensor Front 9 Nm Road wheels 103 Nm
06
Air conditioning
No. of AC service connectors 2 Air conditioning restrictor type Expansion valve Compressor clutch/magnetic coupling No Compressor variable displacement solenoid Yes Air conditioning refrigerant Type R1234yf Air conditioning refrigerant quantity grams 470±30 Air conditioning oil group PAG Air conditioning oil Type Dens Oil 12
High voltage electric motor within compressor; correct oil must be used to reduce risk of electric shock. Air conditioning oil quantity cm³ 127±7
Frequently asked questions What is the minimum brake disc thickness for the Toyota Mirai FCEV? Brake discs on the Toyota Mirai FCEV (2015–2020) are replaced at a minimum thickness of 25 mm (ventilated) front and 10,5 mm rear.
Note: Specifications are workshop reference data for the Toyota Mirai FCEV (2015–2020). Always confirm against your vehicle's VIN plate and service book.