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Frequently asked questions about cars and motorcycles

How to Clean the Diesel Particulate Filter?

Model: (Various brands) Various
Part: Diesel particulate filter

To clean the diesel particulate filter, first remove it from the car: it is generally accessible from the underside of the vehicle and can be removed by loosening its mounting bolts. Once the filter is removed, clean it using a caustic soda solution for at least two hours, or a hydrochloric acid solution for a maximum of two hours. The filter must be sealed with cork stoppers to prevent the solution from leaking once poured inside. This procedure should be performed a second time, and then wash the filter with water to prevent corrosion.

Updated on 22 April 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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