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Error P20E8 is not always the fault of the AdBlue tank

Model: (Various brands) Various
Part: AdBlue warning light

Video tutorial

In this video, we see that the notorious error P20E8 is not always attributable to the AdBlue tank, and that it is not necessary to replace it as often advised. The real issue could be the electrical contacts that become disconnected when removing the tank, which may just need cleaning.

It is also advisable to purge the pipe by cleaning the inside with compressed air, allowing crystallised residues to fall into a container. The YouTuber also provides useful information about a supplier capable of regenerating your tank.

Remember that keeping the tank full prevents the AdBlue inside from crystallising.


Updated on 12 September 2026 by ScegliAuto


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How to Remove the Rear Seat of a Hyundai Tucson?

To remove the rear seat of a Hyundai Tucson, follow these steps. Start by moving the front seats to their most forward position to gain space. Next, locate the release lever on the underside of the rear seat, near the floor. Press this lever down while pulling the seat upwards to unlock it from the anchor pins. Once unlocked, tilt the seat upwards and forwards to remove it from its position. Repeat this process for both sides of the rear seat. Be careful of any electrical cables or components that may be connected to the seat during removal. Once the rear seat is removed, the disassembly is complete.

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