Proper maintenance of a car's thermostat requires learning how to inspect, clean it regularly, replace it promptly, and install it correctly. The thermostat is a key component of the car's cooling system, ensuring the engine operates within the optimal temperature range. During routine maintenance, you should learn various inspection methods, such as observing the coolant level in the radiator and feeling the water temperature. You should also regularly clean the cooling system to remove scale and dirt from the thermostat. If the thermostat is faulty or aging, it should be replaced promptly. When installing it, be careful not to install it upside down to avoid affecting engine temperatures.
Learning how to inspect the thermostat is crucial. After starting the engine, open the radiator filler cap. If the coolant level in the radiator remains calm, the thermostat is functioning properly. As the water temperature gradually rises, it will rise rapidly in the initial operation and then slowly after reaching 80 degrees Celsius. This is also normal. When the water temperature is between 70 and 80 degrees Celsius, open the radiator cap and drain valve and feel the water temperature with your hand. If it feels hot, the thermostat is functioning properly. These inspection methods can help you identify any thermostat anomalies. Regular cooling system cleaning is essential for thermostat maintenance. Over time, scale and dirt accumulate in and around the thermostat, affecting its performance. Therefore, regular thorough cleaning of the cooling system is crucial to remove deposits and debris from the thermostat, ensuring smooth coolant flow and maintaining a stable engine operating temperature.

If the thermostat shows signs of malfunction or deterioration, it must be replaced promptly. A malfunctioning thermostat can cause uneven engine cooling, leading to symptoms such as slow engine warm-up and abnormal temperatures during low-speed driving in winter. If the top of the radiator is hotter than the bottom, this is likely a problem with the thermostat. Careful inspection and prompt replacement of the thermostat are essential. When replacing the thermostat, ensure that it is properly installed and that it is properly installed to avoid inversion.
In short, maintaining your vehicle's thermostat is crucial to stable engine operation. Proper inspection, regular cleaning, and timely replacement and installation will ensure the thermostat remains in good working condition, ensuring the engine operates at the correct temperature, improving fuel efficiency, reducing engine wear, and extending the life of your vehicle.
