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How to Reset the AdBlue Warning Light on the Citroën C5 Aircross?

Model: Citroen C5 Aircross MK 1 - Years: 2017, 2018, 2019, 2020, 2021, 2022
Part: AdBlue warning light

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Video tutorial

To reset the AdBlue warning light on the Citroën C5 Aircross, you need to top up by adding the necessary amount of additive liquid to the tank: to do this, open the fuel flap and locate the blue cap underneath. Unscrewing this cap will allow you to add the required amount of additive liquid to the tank until it is completely full; after topping up, close the tank and then the fuel flap, ensuring that the warning light has completely disappeared from the display.


Updated on 11 October 2026 by ScegliAuto


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How to open the fuel flap of the Toyota Aygo?

The fuel flap of the Toyota Aygo can be opened by pulling the dedicated button located on the dashboard, on the left side of the steering column: this button should now be pulled upwards. This will unlock the mechanism that allows the flap to close, making it possible to open the fuel flap. You can then unscrew the cap underneath and refuel: after refuelling, reposition the cap and close the flap again.

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by ScegliAuto

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