01
Engine & identification
Ignition system
Ignition coil supply voltage + with ballast V 12,0
02
Engine oil & fluids
Grades, filling conditions and capacities
Lubricants and capacities — complete reference
Other lubricants and capacities
Cooling system - total capacity litres
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Brake fluid Type
DOT 3/4
Brake fluid classification
ISO Class 6
Brake fluid litres
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03
Brakes & wear limits
Brake disc thickness
Brake discs on the Toyota bZ4X EV (2025–2026) are replaced at a minimum thickness of 31 mm (ventilated) front and 16,5 mm (ventilated) rear.
Minimum disc thickness for replacement - ventilated Front 31 mm Minimum disc thickness for replacement - ventilated Rear 16,5 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
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Service & electrical
Battery
The Toyota bZ4X EV (2025–2026) uses a 12 V, 45 Ah battery.
Service checks and adjustments
Radiator cap bar 0,93-1,03
05
Tightening torques
Other engine tightening torques Water pump 8 Nm
Chassis tightening torques Front hub 290 Nm
Front hub - wheel bearing housing bolts 120 Nm Rear hub - wheel bearing housing bolts 80 Nm Steering wheel 62 Nm Steering rack/box mounting 88 Nm Steering track rod end 49 Nm Brake disc to hub Front 20 Nm Brake caliper to carrier Front 34 Nm Brake caliper/carrier to hub Front 107 Nm Brake disc to hub Rear 20 Nm Brake caliper to carrier Rear 34 Nm Brake caliper/carrier to hub Rear 200 Nm ABS sensor Front 9 Nm ABS sensor Rear 9 Nm Road wheels 140 Nm
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Air conditioning
No. of AC service connectors 2 Air conditioning restrictor type Expansion valve Compressor clutch/magnetic coupling No Compressor variable displacement solenoid No Air conditioning refrigerant Type R1234yf Air conditioning refrigerant quantity grams 700±30 Air conditioning oil group POE Air conditioning oil Type Dens Oil 11 Air conditioning oil quantity cm³ 150
Frequently asked questions What is the minimum brake disc thickness for the Toyota bZ4X EV? Brake discs on the Toyota bZ4X EV (2025–2026) are replaced at a minimum thickness of 31 mm (ventilated) front and 16,5 mm (ventilated) rear.
What battery does the Toyota bZ4X EV use? The Toyota bZ4X EV (2025–2026) uses a 12 V, 45 Ah battery.
Note: Specifications are workshop reference data for the Toyota bZ4X EV (2025–2026). Always confirm against your vehicle's VIN plate and service book.