Thermostat, coolant - TX 18 83D 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. A6 (4G2, 4GC, C7)
2. A6 / S6 (4G2, 4GC, C7)
3. SCIMITAR Roadster
4. T2/L Van
5. T2/L Platform/Chassis
6. T2/LN1 Van
7. T2/LN1 Platform/Chassis
8. T2/LN1 Dump Truck
9. T2/LN1 Bus
10. T2/LN1 Cab with engine
11. VARIO Platform/Chassis
12. VARIO Van
13. VARIO Dump Truck
14. VARIO Bus
15. VARIO Cab with engine
16. T2/L Dump Truck
17. T2/L Municipal Vehicle
18. LP
19. LK/LN2
20. NG
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.