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How to Prevent AdBlue Crystallisation

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

AdBlue crystallisation is a common problem for diesel vehicle owners: the main method to prevent crystallisation is to keep the tank sufficiently full; indeed, the additive crystallises when in contact with air, so it is intuitive that if there is little air in the tank, there are fewer chances of it crystallising. If you want to further improve the situation, you can use an additive to prevent crystallisation, such as the one recommended by a YouTuber, which is certainly a high-quality product: it can be found in a different packaging, for example on Amazon with code B0C49VVN6Q at a price of £24.58 for the 250 ml package, with free delivery for Prime customers.

Posted on 21 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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