A problem with a cooling system can cause the engine to overheat, and this can result in serious damage to the engine. One of the common problems with a cooling system is lack of coolant caused by leaks. Coolant leaks are very common in many cars. Here is an example. For this reason, it's important to keep your engine coolant level full. Check the coolant level regularly.
Keeping the engine temperature under control is the work of the cooling system. The cooling system circulates liquid coolant (antifreeze) from the engine into the radiator installed in the front of the car where the coolant is cooled down by the air flow passing through the radiator fins.