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. ACCORD VII (CL, CN)
2. ACCORD EURO VII (CL, CN)
3. ACCORD VII Tourer (CM, CN)
4. FR-V (BE)
5. EDIX (BE)
6. CR-V II (RD_)
7. CR-V Mk II (RD_)
8. CR-V II SUV (RD_)
9. CIVIC VIII Hatchback (FN, FK)
10. CR-V III (RE_)
11. CR-V Mk III (RE_)
12. CR-V III SUV (RE_)
13. ACCORD VIII (CU)
14. ACCORD EURO VIII Saloon (CU)
15. ACCORD VIII Estate (CW)
16. ACCORD VIII Tourer (CW)
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The principle of the thermostat work

The classic HERTH+BUSS JAKOPARTS 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.