How do you 1999 barina coolant change?

To change the coolant in a 1999 Barina, first ensure the engine is cool, then locate the radiator drain plug and place a container underneath to catch the old coolant. Open the drain plug and let the old coolant flow out, then close the plug once drained. Next, remove the radiator cap and fill with a 50/50 mixture of fresh coolant and water. Start the engine and let it run for a few minutes to circulate the new coolant, then check the level and top off if necessary.