A radiator is used to help keep the engine cool. During operation, the engine’s moving parts create friction, which produces heat. The heat from the friction can be enough to cause damage to the engine if it is not cooled properly. The coolant will lose its heat into the atmosphere and is then pumped back into the engine where it absorbs and removes more of the engine’s heat. This can help keep the engine from overheating. Having the radiator maintained can also help to prevent a costly repair bill if the vehicle has a breakdown.