Pic. 2.51. Thermostat: 1 - side of the engine; 2 - side of the radiator; 3 - coolant pump; 4 - thermostat; 5 - thermostat housing; 6 - oil cooler (LF and L3 engines); 7 - heater hose (L8 engines); 8 - lower radiator hose
The system uses a wax thermostat with a pin. A stainless steel thermostat is installed in the plastic housing of the thermostat. When the engine coolant temperature is below 75°C, the thermostat stops coolant circulation through the radiator to improve engine warm-up. When the engine coolant temperature is between 80°C and 84°C, the thermostat valve starts to open, the coolant starts to circulate through the radiator to stabilize the engine temperature (pic. 2.51).