
The functions of the cooling system are as follows: 1. To keep the engine within an appropriate temperature range under all operating conditions. 2. The cooling system must prevent the engine from overheating as well as from becoming too cold during winter. Additional information about the cooling system is as follows: 1. Depending on the cooling medium, cooling systems can be categorized into air-cooled and water-cooled systems. 2. In the electromechanical equipment industry, the cooling system is an extremely critical component. It is vital for the safe operation and service life of the cooled electromechanical devices, yet it is often overlooked and remains a weak link. 3. The primary function of the cooling system is to dissipate the heat generated by engine combustion.

I've been in auto repair for decades, and the cooling system is like a bodyguard for the engine, specifically preventing it from overheating and failing. Burning gasoline in the engine generates heat exceeding 200 degrees Celsius. If not absorbed promptly, metal components can expand and deform, even leading to piston seizure or cylinder block cracks. The coolant circulates in the system, with the water pump pushing it to absorb heat from the engine before flowing to the radiator, where the fan cools it down. The thermostat controls the circulation speed, maintaining it around 90 degrees, ensuring smooth engine operation, efficient combustion, and fuel economy. I've seen too many cases where coolant leaks or long-term neglect caused the engine to overheat, resulting in repair costs of tens of thousands. Therefore, regularly checking the fluid level and color is crucial. It's recommended to replace the antifreeze and anti-rust coolant every two years to extend the engine's lifespan.

Last month, I was driving out of town when the temperature gauge suddenly spiked, and steam started billowing from under the hood. It turned out to be a cooling system failure. The mechanic explained its role: preventing engine overheating damage. When the engine runs, it's like an oven—the coolant absorbs heat and carries it to the radiator under the front bumper to cool down before circulating back. Without it, the engine could overheat to the point of melting parts or even causing a fire. That incident nearly turned into a disaster. Now I understand the importance of maintenance: keeping the coolant at the right level and clean. In winter, it even helps provide warm air for heating. Simply checking the coolant reservoir level can prevent major issues, saving both hassle and money.

When I first started learning to drive, the instructor explained that the cooling system is the engine's thermostat. It circulates coolant to absorb the heat generated by the engine and sends it to the radiator at the front of the car for air cooling. This keeps the temperature stable around 90 degrees, ensuring complete combustion, normal power output, and fuel efficiency. If not maintained, such as low fluid levels or old coolant, it may overheat and cause engine failure, affecting safety. Checking is simple: open the hood to see if the coolant level is between min and max, and the color should be fresh green or pink.


