Thermostat 97℃ 11537549476 For BMW E60 E90 E65 E66 X3

Thermostat is a key component in the engine cooling system, also known as coolant temperature regulator or coolant temperature control valve. It is usually installed in the coolant inlet pipe of the engine coolant circulation system.

The main function of thermostat is to control the temperature of engine coolant, so as to ensure that the engine runs in a suitable working temperature range. When the engine is started, the thermostat is closed, and the coolant flows through the circuit that bypasses the engine, so as to speed up the temperature rise of the engine. Once the engine reaches the preset operating temperature, the thermostat will open, allowing coolant to flow through the engine cooling system, thus keeping the engine within the ideal operating temperature range.

The thermostat is opened and closed by an internal temperature sensitive element (such as an expansion valve or a wax-like element). When the coolant temperature rises, the temperature sensitive element will expand, which will open the thermostat and allow the coolant to flow through the engine. On the contrary, when the coolant temperature decreases, the temperature sensitive element will shrink, which will close the thermostat and reduce the coolant flow to keep the engine temperature stable.

The normal operation of thermostat is very important to the performance and life of engine. It can ensure that the engine heats up quickly during cold start, reducing wear and fuel consumption. At the same time, after the engine reaches the working temperature, the thermostat can maintain the coolant in a suitable temperature range to provide the best combustion efficiency and engine performance. In addition, the thermostat also reduces the excessive evaporation and loss of coolant, and improves the efficiency and reliability of the cooling system.

To sum up, the thermostat plays a role in controlling the temperature of coolant in the engine cooling system, so as to ensure that the engine runs in a suitable working temperature range. Its opening and closing are realized by temperature sensitive elements, which can improve engine performance, combustion efficiency and cooling system efficiency.