1. Park your car on a level surface and turn off the engine.
Allow the engine to cool down completely.
2. Remove the radiator cap.
This is usually located on the top of the radiator.
3. Check the coolant level.
The coolant level should be between the "MIN" and "MAX" marks on the reservoir. If the coolant level is low, add a 50/50 mixture of antifreeze and water to the reservoir.
4. Start the engine and let it run for a few minutes.
This will help to circulate the coolant and remove any trapped air.
5. Turn off the engine and let it cool down completely.
6. Repeat steps 2-5 if necessary.
You may need to repeat this process several times to completely remove all of the air from the cooling system.
7. Once you are sure that all of the air has been removed, replace the radiator cap.
