How to Replace Coolant in ix35?
2 Answers
Here are the steps to replace the coolant in ix35: 1. Unscrew the radiator cap, open the radiator drain valve (usually located at the bottom of the car), and drain the coolant. 2. Clean the cooling system by continuously injecting clean water into the engine cooling system. During the flushing process, keep the engine idling to maintain the circulation of clean water inside until clear water flows out from the radiator. 3. Stop adding water, wait for the water to drain completely, and then close the drain valve. 4. Add new coolant until the liquid level reaches between the MAX and MIN marks. 5. Close the cap, start the car, and let the engine idle for two to three minutes. The cooling system will expel internal air, causing the coolant level to drop slightly. At this point, you should add more coolant to top it up.
I noticed several key points when I last changed the coolant for my ix35 by myself. First, park the car on level ground and wait until the engine cools down completely to avoid burns. Then, unscrew the plastic drain valve at the bottom of the radiator, and the old coolant will gush out—remember to catch it with a basin. Once it’s fully drained, tighten the valve. Here’s the crucial part: locate the overflow tank (the white translucent plastic container in the engine bay) and disconnect the return hose to completely drain the old coolant. For the new coolant, make sure to use the Hyundai-approved green fluid, and pour it into the overflow tank until it reaches the mid-level mark. Start the engine and turn the heater to the highest setting. Wait until the fan cycles twice, and the coolant level will drop—top it up to the marked line to finish. Throughout the process, never mix coolants of different colors, as it can damage the engine.
