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How to Clean the Car's Cooling Circuit

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

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

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How to Open a Stuck Boot on the Peugeot 407?

On the Peugeot 407, the boot may become stuck, possibly due to a problem with the control button or the lock actuator. In such cases, you can perform an emergency opening by following the simple procedure shown in this tutorial. First, open the rear doors, then lower the seat back by operating the release lever. Next, go inside the boot, locate the lock, and manually operate it using a flathead screwdriver. The boot will then be free to open.

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