The Radiator is a crucial component of the coolant system of the vehicle, and it works to prevent overheating of the engine. We all saw the image of a car pulled off from the hood to the side of the road, with steam streaming out. That may even have happened to you. But do you remember what this predicament caused?
Because of an overheated engine, there is a fair risk it happened. A car engine operates through a collection of movable components, causing a lot of friction. The friction means excess heat energy, not to mention the heat from the engine-burned coal.
Ideally a car engine works between 180 and 210 degrees Fahrenheit or 82 and 100 degrees celsius, which is hotter than that and the motor will start overheating. They try to stop this situation, of course, and as long as the car's boiler works well there is a fair chance they will be able to.