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How to Top Up AdBlue in the Citroen C5 Aircross

Model: Citroen C5 Aircross MK 1 - Years 2017-2022
Part: AdBlue warning light

This mini guide explains how to correctly top up AdBlue in your new Citroen C5 Aircross. AdBlue is a special industrial liquid designed to optimally and cost-effectively reduce the environmental impact of Diesel engines. The tank is located near the conventional fuel tank, making it easy to find. Open the flap and locate the blue cap. Next, pour the compatible new AdBlue into the tank, then refit the cap and close the flap.

Updated on 9 May 2026 by ScegliAuto

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