Caution: When opening the expansion tank, hot steam may leak out. After covering the cork with a rag, carefully open it.
Open the coolant cap on the expansion tank. Remove the lower engine cover. Place a catch basin under the engine. Turn the drain plug "arrow" on the radiator to the left and pull it out in the backward direction; if necessary, attach an auxiliary hose to the fitting.

To drain the coolant from the engine, you should also disconnect the coolant hoses from the "arrow" oil radiator.
Refueling
The appropriate coolant should be selected from among the liquids. Prepare the required amount of coolant, pre-mixed in the correct proportions, in a suitable container. Screw in the coolant drain plug. Install the coolant hoses to the oil cooler.

Fill the expansion tank with coolant up to the marks on the tank. Close the expansion tank and let the engine run until the fan starts.
Caution: When opening the expansion tank, hot steam may leak out. After covering the cap with a rag, carefully open it, check the coolant level and top it up if necessary. In a warm engine, the coolant level should be at the "max" mark, and in a cold engine, between the "min" and "max" marks.

