What are the steps to replace the coolant?

1 Answers
VonCarlos
07/30/25 2:45am
Anti-freeze replacement method is as follows: Before completely replacing the coolant, conduct a thorough inspection to check for any signs of leakage or cracks in the pipelines, with a special focus on the five-way water pipe. The five-way pipe gets its name from having five connecting interfaces to various parts. The coolant flows through the five-way pipe and is then distributed to different parts of the car to function. If there is any leakage of coolant in this section, replace the water pipe or re-secure the interface as needed. Drain the old coolant and then flush the liquid channels with clean water. Add clean water to the coolant reservoir, then continue to inject water into the reservoir to allow it to continuously flow through the engine cooling system. Start the engine and let it idle for 3 to 5 minutes to circulate the water. Initially, the water flowing out from the reservoir will have a faint pink color. Continue adding clean water until clear water flows out. Note: Don’t forget to remove the heater hose and drain the water from the heater core. After draining the water for about an hour, add the new coolant through the radiator hose to allow it to quickly flow into the radiator. Then add another bucket of coolant to the coolant reservoir until it is nearly full. Start the engine and let it run for about 10 minutes. At this point, the coolant level will drop slightly as some air is expelled from the cooling system. Add more coolant until it reaches the "MAXT" mark on the reservoir.
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