Thermostat, coolant - 352044389000 MAGNETI MARELLI

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. C8 (EA_, EB_)
2. 407 (6D_)
3. 407 Saloon (6D_)
4. XSARA PICASSO (N68)
5. 206 Hatchback (2A/C)
6. C4 PICASSO I MPV (UD_)
7. 406 (8B)
8. 406 Saloon (8B)
9. 406 Break (8E/F)
10. 406 Estate (8E/F)
11. 406 Coupe (8C)
12. 206 CC (2D)
13. 607 (9D, 9U)
14. 607 Saloon (9D, 9U)
15. ZETA (22_)
16. EVASION MPV (22, U6)
17. SYNERGIE MPV (22, U6)
18. JUMPY (U6U_)
19. DISPATCH (U6U_)
20. EXPERT (224_)
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The principle of the thermostat work

The classic MAGNETI MARELLI 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.