AV-SCANNER / Accessory guides / Tyres, brakes and cooling
This guide covers the complete use of a coolant funnel kit for refilling cooling systems without trapping air, from selecting the right kit for your vehicle to reading the results and diagnosing common problems. It is written for both DIY motorists and working mechanics who need a reliable, repeatable method for air-free coolant fills on a wide range of makes and models. You will learn how to set up the funnel safely, perform a full fill and bleed procedure, interpret the gauge and fluid behavior with worked examples, and recognize when a job exceeds the capabilities of a funnel kit alone. After reading, you will be able to execute a professional-quality coolant refill and confirm that the system is free of air pockets before returning the vehicle to service.
Guidance is general and covers many makes. Exact procedures and values vary by model, so confirm them in the factory service information for your vehicle.
Download all 12 sections as a branded PDF to use in the workshop.
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