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. MEGANE I Coach (DA0/1_)
2. MEGANE I Coupe (DA0/1_)
3. MEGANE I (BA0/1_)
4. MEGANE I Classic (LA0/1_)
5. MEGANE I Cabriolet (EA0/1_)
6. SANDERO/STEPWAY I (BS_)
7. KANGOO (KC0/1_)
8. LOGAN (LS_)
9. LOGAN MCV (KS_)
10. LOGAN I (LS_)
11. TONDAR 90 I (LS_)
12. LOGAN I Estate (KS_)
13. TONDAR 90 I Estate (KS_)
14. SANDERO II
15. BLUEBIRD SYLPHY II (G11)
16. SYLPHY II (G11)
17. ALMERA II (G15, G11)
18. DOKKER
19. LOGAN/STEPWAY II (L8_)
20. LODGY (JS_)
21. See more in applications

The principle of the thermostat work

The classic BLUE PRINT 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.