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How to Reset the AdBlue Warning Light on the Citroen C5 Aircross

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

Today's guide will show you how to top up the AdBlue fluid and reset the warning light on the Citroen C5 Aircross. First, open the fuel flap and pour in the AdBlue from the canister (the tank holds 17 litres); once finished, get in the vehicle and turn on the ignition, waiting for the onboard computer to verify the new level of AdBlue in the tank, as shown in the video. At this point, if the level is optimal, the AdBlue warning light will automatically turn off, following the video tutorial to the end!

Updated on 10 August 2026 by ScegliAuto

Video tutorial

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How do you reset the AdBlue warning light on the Citroën C5 Aircross?
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by ScegliAuto

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