![]() The main reason for a permanently open thermostat is one jammed piston or of corrosion. After that, the coolant circuit is new again filled and then still vented. Now the old thermostat can be exchanged for a new thermostat with all the seals. In most cases, some lines and the cooling water hoses must also be removed so that work on the thermostat housing is feasible. However, the underbody protection is almost always removed and the cooling water drained from the system. The repair process is not always identical, since the thermostat is installed differently in every vehicle. While should no used part, since it is not clear how old and worn it is. If the thermostat turns out to be faulty, it will be against a new changed. info: the yellow coolant light only indicates that the coolant level is too low Repair or change thermostat.The engine control lamp lights up ( possibly).electric radiator fans from the cooling water radiator ( when installed) a permanently closed thermostat can partially compensate ( this can be seen from the fact that the electric cooling fan is almost permanently active).Water vapor is released ( Every cooling system has an overpressure valve, the overpressure is released in the form of water vapor, the overpressure valve is usually located in the cover of the expansion tank or in the radiator cap).red coolant lamp in the instrument cluster lights up or flashes ( The instrument cluster shows the cooling water temperature if installed).The following problems can occur as symptoms with the classic thermostat & the map-controlled thermostat: And, these symptoms do not always appear together. ![]() Increased fuel consumption can also indicate a defective thermostat. It may also be that the Diesel particulate filter either not properly regenerated or not regenerated at all. more than 90 ☌ is displayed on the temperature display in the area of the fittings, is the thermostat permanently closed or does not open properly. Will the MOTOR, the heating or both not warm, the thermostat is permanently open or does not close properly. Closing / opening always happens when the opening temperature is below / reached identify a faulty thermostat.warm condition -> Spring plate opens and releases cooling water.cold condition -> Spring plate closes the cooling water's way to the cooling water cooler.the plates open/close the path between the small/large cooling circuit.both types of thermostats have one Spring plate.The main components of the small cooling circuit include the water pump, the heat exchanger for heating in the interior and the engine block itself.Ģ.039 PS & 1.704 Nm Lotus Evija Fittipaldi Edition (2022) - mit recyceltem Aluminium! The function briefly explained: Indirectly, the thermostat also has an influence on the fuel consumption and the exhaust emission. The thermostat also regulates the temperature while driving so that the engine keeps its operating temperature within the perfect range and cannot overheat. From this point on, the cooling water also reaches the cooler, which releases the temperature to the environment. The thermostat opens when the engine has reached the correct operating temperature and the cooling water can circulate in the large cooling water circuit. While the engine is warming up, the cooling water circulates in the small circuit. A small and one great cooling water circuit. There are two cooling water circuits in the car. The electronically map-controlled thermostat with electric actuator will, however, from a control unit regulated and can regulate the temperature faster and more effectively. With the mechanical thermostat, an expansion material expands due to the temperature so that the thermostat opens or closes. Electric Dragster: 2023 Ford Mustang Super Cobra Jet 1800! 14 April 2023įor cars there is two types of thermostats ( also called coolant regulator).
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