Do it yourself
Frequently asked questions about cars and motorcycles
Car tutorial (Do it yourself) Motorcycle tutorial (Do it yourself) Frequently Asked Questions

How to Clean the Car's Cooling Circuit

Model: (Various brands) Various
Part: Checks and maintenance

Video tutorial

The air cooling circuit should be cleaned every 50,000 to 100,000 miles or every 2 to 5 years (whichever comes first); it removes dirt, rust, and sediment that clog the system, prevents engine overheating, and maintains engine efficiency. To drain it, the engine must be cold.

Drain the coolant from the radiator drain plug; add a specific cleaner for cooling circuits, start the engine, and let it run for the time indicated by the product. Then turn off the engine and drain the cleaner.

Rinse with clean water until it runs clear, then fill with new coolant (type and brand recommended by the manufacturer), start the engine, and check that the temperature remains normal.


Posted on 9 February 2026 by ScegliAuto


Related tutorials

How to Clean the Radiator
How to Clean the Radiator
(Various brands) Various In this video, you will see how to clean a radiator. You will need a product like Bardahl Radiator Cleaner, which can be found on the Bardahl website…
What to do if the coolant level drops but there are no leaks
What to do if the coolant level drops but there are no leaks
(Various brands) Various It may happen that the coolant level of our car - whatever brand or model it may be - drops without there being any actual leaks in the cooling syste…
What Does It Mean If We Need to Top Up the Coolant in Our Car
What Does It Mean If We Need to Top Up the Coolant in Our Car
(Various brands) Various This video explains what it means if we need to periodically add coolant to the designated reservoir in our car. The cooling system is a closed circu…

    Frequently Asked Questions

    • Vari - Does the Sym Symphony 200cc have any known faults or problems? Read answer
    • Vari - What problems does the Keeway K-Light 125 have? Read answer
    • Vari - What are the main problems with the Keeway Superlight 125? Read answer

How to Open the Fuel Flap on a Volkswagen Tiguan?

To open the fuel flap on a Volkswagen Tiguan, first unlock the car using the appropriate button on the remote. This will open the car and unlock the mechanism that controls the fuel flap. At this point, apply light pressure to the left side of the flap to open it and access the cap underneath. Once this is unscrewed, you can refuel and then close everything.

Watch the video!


by ScegliAuto

More videos