Basic data for adjustments and monitoring
- Radiator cap exhaust valve opening pressure, kPa — 74-103 (min 64)
- Antifreeze concentration range, % - 30-60
Thermostat
- valve opening start temperature,°C
- GDI — 85 ±1,5
- MPI — 88
- 4G93-GDI — 82 ±1,5
- valve full opening temperature,°C
- GDI — 98
- MPI — 100
- 4G93-GD1 — 95
- valve travel (at 95°С), mm
- GDI - not less than 8.5
- MPI - not less than 8.0
- 4G93 GDI - not less than 8.5
Coolant
- High-quality antifreeze based on ethylene glycol, l -6
Sealant
- Coolant drain plug from cylinder block. ZM Nut Locking Part No. 4171 Water pump, thermostat housing
- Mitsubishi Genuine parts no. MD970389
General information
- The cooling system is designed to maintain the optimal thermal regime of the engine under any operating conditions. The engine uses a liquid cooling system with forced circulation of liquid through the cooling jacket of the cylinder block and cylinder head using a centrifugal pump. If the specified temperature of the coolant is exceeded, the thermostat opens and the coolant begins to circulate through the radiator, dissipating heat into the air.
- When the engine warms up to normal operating temperature, the coolant expands and is forced into the expansion tank. When the engine cools down, the cooling system is fed from the expansion tank.
- The centrifugal pump is driven by a timing belt (GDI) or drive belt (MPI) from the crankshaft pulley.
- The plate-type radiator is cooled by an electrically driven fan, which is controlled by an electronic engine control unit in accordance with the thermal regime of the engine.
Warning. When opening the caps of the expansion tank on a hot engine, care must be taken, as escaping hot vapors and coolant can cause severe burns. In case the radiator filler cap must be removed before the engine and radiator are completely cool (although it is not recommended), first of all, it is necessary that the pressure in the cooling system decreases.
Warnings
- To avoid burns, cover the cap with a thick piece of cloth and slowly unscrew it until a hiss is heard. When the hissing stops, indicating that the pressure has decreased, continue to slowly unscrew the cap until it can be removed. If the hissing continues, wait until it has completely disappeared. At all times, when opening the cork, try to keep your face and hands at a safe distance.
- Do not allow antifreeze to come into contact with skin or painted surfaces of the vehicle. Rinse spilled liquid immediately with water. Never allow antifreeze to be in an open container or spilled on the driveway or garage floor. If the engine is hot, the electric fan may turn on even when the engine is off.