Thermostat, coolant - TX 174 86 MAHLE ORIGINAL

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. 12 Variable (117_)
2. VIRAGE Variable (117_)
3. 12 Break (117_)
4. 9 (L42_)
5. 9 Saloon (L42_)
6. ALLIANCE (L42_)
7. 11 (B/C37_)
8. ENCORE (B/C37_)
9. 16 (115_)
10. 17
11. 11 Hatchback Van (S37_)
12. RODEO 5 (4D_, 5E_)
13. 1210
14. 1307 Platform/Chassis
15. 1309 Platform/Chassis
16. 1309 Pickup
17. 1410 Saloon
18. 1410 Estate
19. RAPID Box Body/MPV (F40_, G40_)
20. EXPRESS Box Body/MPV (F40_, G40_)
21. See more in applications

The principle of the thermostat work

The classic MAHLE ORIGINAL 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.