How to add water to the Vios radiator?
3 Answers
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.
I often drive a Vios myself, and adding coolant to the radiator is quite simple, but you need to be careful. The radiator actually contains coolant, not pure water, otherwise it can corrode the engine. First, wait until the engine is completely cooled down after shutting it off—at least half an hour or more. Then, open the engine compartment and locate the plastic radiator cap or expansion tank, which is usually near the front bumper in the Vios. Unscrew the cap and check the fluid level markers. If it’s below the MIN line, buy the appropriate coolant and add it up to the MAX line—don’t overfill. Make sure to use Toyota’s genuine coolant or a premixed solution for safety. I usually check the fluid level every three months to avoid breaking down on the highway—it saves money and hassle.
I just started driving my new Vios not long ago, and the first time I added water to the radiator was a bit chaotic, but I figured it out later. The key is to make sure the engine is cold, otherwise the hot liquid can spray out and hurt people. I usually check it in the morning before driving, open the hood, and find the radiator or the expansion tank next to it. The tank on the Vios is usually labeled "coolant." Gently unscrew the cap, check the fluid level visually, and if it's low, go to an auto parts store to buy the special antifreeze to add. Never add tap water directly. The whole process takes just a few minutes. Learning to do it yourself is very convenient and prevents problems with your beloved car.
