How to Replace Antifreeze?
2 Answers
Antifreeze replacement steps are as follows: 1. Before replacing the antifreeze, turn off the engine and wait for about 30 minutes to allow the antifreeze to cool down. 2. Open the hood and conduct a comprehensive inspection first. 3. Use a jack to lift the vehicle. 4. Use a wrench to loosen the screw at the bottom of the radiator and use a waste liquid basin to catch the old fluid. 5. Use a wrench to remove the radiator cap, being careful not to get burned. 6. Add softened water and let the engine idle for 5 minutes to thoroughly clean the internal cooling circulation system. 7. Add new antifreeze up to the upper water level limit. 8. Let the engine idle for 5 minutes, then observe the antifreeze reservoir scale line and top it up if necessary.
Replacing the coolant is something I do quite often myself. The whole process requires ensuring the engine is completely cooled down to avoid the risk of burns. In the preparation stage, gather the necessary tools: gloves, a large basin to catch the old fluid, a funnel, and new coolant, typically at a 50% concentration. Open the drain valve at the bottom of the radiator, and the old fluid will pour out—be careful not to splash it on yourself, and wear gloves to protect against corrosion. After draining, it's best to flush the system with distilled water two or three times until clear water comes out, preventing residue that could cause rust. Then, seal the valve and pour in the new coolant up to the maximum fill line. Start the engine and let it run for 5 minutes, turning on the heater to circulate the water and remove air bubbles before checking the fluid level and topping it up if necessary. I change it every two years to prevent freezing and overheating, extending the engine's lifespan and saving a lot on repair costs.
