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How to Remove an Air Bubble from the Coolant

Model: (Various brands) Various
Part: Antifreeze coolant

Video tutorial

In this video, you will see something very interesting that can occur when you have worked on the vehicle's cooling system for any reason. Bleeding the air from the cooling circuit is one of the most challenging tasks, but there is a device that can help.

To fill the radiator, put on the cap and use this special funnel: an old t-shirt will serve as a filter to catch any dirt and debris. Start the engine, and while keeping the funnel in place, air will begin to escape from it. Why does this happen? Because the fluid level is higher than the rest of the system that is in operation.

You can find this special funnel with its accessories on Amazon using code B01I40ZQWE for £19.97 plus £23.09 shipping in Italy.


Updated on 7 November 2026 by ScegliAuto


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Watch the video!


by ScegliAuto

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