THERMOSTAT COOLANT FOR RENAULT MEGANE/III/Grandtour/Hatchback/Classic/Coach 1.5L MAGNETI MARELLI 352055689000

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 III Grandtour (KZ0/1)
2. GRAN TOUR III Grandtour (KZ0/1)
3. MEGANE III Hatchback (BZ0/1_, B3_)
4. TRAFIC II Bus (JL)
5. MEGANE I Classic (LA0/1_)
6. SCENIC III (JZ0/1_)
7. CLIO III Hatchback Van (SB_, SR_)
8. MEGANE I Coach (DA0/1_)
9. MEGANE I Coupe (DA0/1_)
10. KANGOO BE BOP (KW0/1_)
11. KANGOO (KC0/1_)
12. LAGUNA I (B56_, 556_)
13. LAGUNA I Grandtour (K56_)
14. LAGUNA I Nevada (K56_)
15. LAGUNA I Estate (K56_)
16. THALIA II (LU_)
17. SYMBOL II (LU_)
18. ESPACE III (JE0_)
19. ESPACE Mk III (JE0_)
20. VEL SATIS (BJ0_)
21. See more in applications

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.