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. 164 (164_)
2. 164 Saloon (164_)
3. 168 (164_)
4. KADETT C Coupe
5. TAUNUS '80 (GBS, GBNS)
6. CORTINA '80 (GBS, GBNS)
7. GRANADA (GU)
8. SCORPIO I (GAE, GGE)
9. GRANADA Mk III� (GAE, GGE)
10. GRANADA I (GAE, GGE)
11. REKORD D
12. REKORD D Estate
13. REKORD E (17_, 11_, 14_, 16_, 18_, 19_)
14. REKORD E Estate (61_, 66_, 67_)
15. SENATOR A (29_)
16. MANTA A (58_, 59_)
17. MANTA B (58_, 59_)
18. SIERRA Hatchback (GBC)
19. SIERRA Turnier (BNC)
20. SIERRA Break (BNC)
21. See more in applications

The principle of the thermostat work

The classic DENSO 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.