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What are the functions of the cooling system?

2 Answers

BraydenLynn

07/29/25 1:29am

The functions of the cooling system are: 1. Adjust the cooling intensity according to the engine's load, speed, and temperature changes to ensure rapid warm-up and maintain normal operating temperature; 2. Provide different cooling intensities for different working parts of the engine; 3. Dissipate the heat generated during engine operation into the air, ensuring the engine operates within an appropriate temperature range. The main components of the cooling system include: radiator, cooling fan, water pump, thermostat, coolant temperature gauge, water jacket, water pipes, coolant expansion tank, and coolant temperature sensor. The working principle of the cooling system is: when the engine temperature rises, the engine water circulation thermostat opens, allowing engine coolant to enter the large circulation cycle, and the engine drives the cooling fan to rotate for heat dissipation.

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LiamLee

08/12/25 5:36am

The primary function of the cooling system is to prevent the car engine from overheating. During engine operation, a substantial amount of heat is generated. Without proper cooling, components can expand, sustain damage, or even fail completely. With over two decades of driving experience, I understand the critical role of coolant circulation: the water pump propels coolant through the engine block to absorb heat, which then flows to the radiator located behind the front grille, where the fan or oncoming airflow aids in dissipating the heat. When temperatures rise excessively, the thermostat opens to allow more coolant into the system, maintaining an optimal temperature around 90 degrees Celsius. This not only safeguards the engine but also provides cabin heating—excess warm air is directed into the vehicle interior. Regularly checking coolant levels and color is essential, as leaks or corrosion can lead to system malfunctions. I've witnessed numerous cases where neglect in this area resulted in costly engine repairs due to overheating, underscoring the importance of developing good maintenance habits.

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