How to add water to the Vios radiator?

[NevaehDella]

Steps to add water to the Vios radiator: 1. Turn the pressure cap counterclockwise. If you hear a hissing sound, wait until the sound disappears before opening it. 2. Add an appropriate amount of coolant into the coolant expansion tank until the level reaches between the MAX and MIN marks. 3. With the coolant expansion tank open, start the engine. 4. After starting the engine, the coolant level will gradually decrease. At this point, add more coolant to the expansion tank until the level reaches between the MAX and MIN marks again. 5. Reinstall the cap, ensuring the pressure cap is hand-tightened and fully seated.