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Resetting the AdBlue Warning Light on a Citroen C4 Picasso

Model: Citroen C4 Picasso MK 2 - Years: 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022
Part: AdBlue warning light

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Video tutorial

In this video, we can see how to resolve the issue of the engine warning light being on and the AdBlue warning light flashing on a Citroen C4 Picasso. The car indicates a remaining range of 621 miles before starting blockage.

An OBD2 WiFi interface and a paid dedicated app (not specified in the video) are used. Connect the OBD2 tool to the diagnostic port, turn on the instrument cluster: the app could be Multiecuscan or CarScanner: we will erase the error codes in the "Engine ECU" section and then in the "SCR/AdBlue system". If the error returns, then the issue is either a faulty sensor, or the urea level is too low or contaminated.

It could also be a faulty urea pump (this is an expensive fault).


Posted on 11 March 2026 by ScegliAuto


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by ScegliAuto

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