Thermostat is a device for maintaining a static (constant) temperature, as its name implies. There are thermostats of different designs in many devices and mechanisms, from water heaters to refrigerators. There is also a thermostat in a car's internal combustion engine (liquid-cooled, of course). In a car, the thermostat regulates the temperature of the coolant (antifreeze): it accelerates the warm-up of a cold engine and provides heat removal from the hot one. Therefore, the engine works more efficiently and more comfortably for the driver, especially in winter - without a thermostat, the stove would usually blew cold air.

1. PREVIA (_R1_, _R2_)
2. TARAGO / ESTIMA (_R1_, _R2_)
3. PREVIA / ESTIMA (_R1_, _R2_)
4. ESTIMA (_R1_, _R2_)
5. TARAGO (_R1_, _R2_)
6. HIACE IV Bus (__H1_, __H2_)
7. HILUX VI Pickup (_N1_)
8. TACOMA VI Pickup (_N1_)
9. HILUX MIGHTY X / HILUX TIGER VI Pickup (_N1_)
10. HIACE IV Van (__H1_, __H2_)
11. HIACE SBV IV Van (__H1_, __H2_)
12. MINI (R50, R53)
13. See more in applications

The principle of the thermostat work

The classic FAE brand Thermostat, coolant is a movable valve that moves due to a change in the external environment - heating or cooling of antifreeze. The thermostat is made of a thermoelement filled with a substance resembling wax in structure - ceresin, with the addition of copper powder, graphite or aluminum for better thermal conductivity. At a certain temperature of the antifreeze, ceresin expands, opening the thermostat valve. When the motor cools down, ceresin contracts and the thermostat closes again.