Can I replace the coolant by myself?

[MichaelLynn]

It is possible to replace the coolant by yourself. The method for self-replacement is as follows: 1. Unscrew the radiator cap and open the radiator drain valve to release the coolant; 2. Keep the engine idling, insert a hose into the radiator, and continuously inject clean water into the engine cooling system for cleaning; 3. Stop injecting clean water, wait until the water has completely drained, and then close the drain valve; 4. Fill with new coolant until the liquid level is between the max and min water level marks; 5. Replace the radiator cap and reservoir cap, and tighten them; 6. Start the car and let the engine idle for two minutes, then top up the coolant to the max mark.