Note: It is not necessary to remove the expansion tank cap to check the coolant level.
1. Stop the engine and let it cool.
2. Check the coolant level in the expansion tank. The fluid level should be between the "L" and "F" marks. If necessary, add coolant up to the "F" mark.
Caution: Do not use plain water instead of coolant.
Replacing the coolant
Caution: Do not remove the radiator cap until the engine and radiator have cooled down. The release of hot coolant and steam can cause serious burns.
1. Set the heater temperature control to the maximum temperature position.
2. Make sure the engine and radiator are completely cool.
3. Remove the radiator cap (1).
4. Unscrew the radiator drain plug (2) and drain the fluid.
5. Tighten the radiator drain plug.
6. Remove the expansion tank (3). Drain the liquid from the tank and install it back.
7. Pour coolant (water and antifreeze concentration 1:1) into the expansion tank up to the "F" mark.
Caution: Do not mix different brands of antifreeze or add additional anti-corrosion additives to them.
8. Fill the radiator with coolant to the base of the filler neck. Gently squeeze the upper and lower radiator hoses to release any trapped air.
(The basis of the material is information from the website: HYUNDAIBOOK.RU)
9. Start the engine and warm it up with the expansion tank cap open until the thermostat opens. As the level drops, add coolant to the radiator.
10. Press the accelerator pedal 2-3 times, then turn off the engine.
11. Install the radiator cap and add coolant to the "F" mark on the expansion tank.