How to Change the Water in a Car Radiator?

1 Answers
DeLydia
07/29/25 10:57pm
With the car engine cooled down, unscrew the radiator cap, open the radiator drain valve, and drain the antifreeze. Insert a rubber hose connected to a tap water pipe into the radiator filler port, then turn on the tap until clear water flows out from the radiator. After the cooling system is completely drained, close the radiator drain valve. Start the engine and let it idle for 2-3 minutes, then securely fasten the radiator cap.
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