How do you change coolant on n16?

Answer 1

Do this when the engine is cold only. First, remove the radiator cap. Then, locate the lower radiator hose. Unfasten this from the radiator. The old coolant will come out. Wait until the coolant has all come out. Then fasten the radiator hose again, make sure it is tight. Pour the new coolant into the radiator. Then, start the engine and let it idle. Pour more coolant into the radiator until it is almost full. Leave a space of 1 cm or so as the hot water will expand in the radiator and needs more space than cold water. Then, replace the radiator cap. Make sure the radiator hoses are not cracked or leaking. Check the coolant every week on older cars, at the same time as you check the engine oil level. Be careful with this, as the pistons will seize in the cylinders if the cooling system runs dry or even partially dry.