𝐑𝐚𝐝𝐢𝐚𝐭𝐨𝐫

The radiator is used to help the engine cool down so it can operate without overheating. It cools the radiator fluid the goes through the engine where it is heated up. As it travels back to the radiator the heat is transfers to the metal fins and air, as the fan blows over it.
A radiator keeps your car engine running at normal operating temperature. The coolant (antifreeze) in the radiator can change the boiling and freezing point of the water that it is mixed with it (normal 50% water and 50% antifreeze).
The radiator can also send hot coolant to the heater core in your car cabin, to heat up your air on cold days. To maintain your radiator always make sure to have a water and antifreeze mix to prevent rust, and check for leaks if needed. Hoses and connection points are also areas to look at if you suspect a leak.
Lastly, if the radiator has dirt or particles covering the metal fins, make sure to clean it off.