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The reset of the AdBlue warning light in a car, how does it happen?

Model: Mercedes Classe M W166 - Years 2011-2018
Part: AdBlue warning light

The procedure shown in the tutorial video is applicable not only to the Mercedes ML used here but to any type of vehicle. Having clarified this, let's take a closer look at what happens: the diagnostic tool shown in the aforementioned video is connected via cable to the OBD port, interfaced with the car's control unit, and then the configuration is carried out, including selecting the car model, etc., until reaching the display of the warning and its deletion. Such tools are available in various brands and models, but they all fundamentally operate on the same principle.

Posted on 29 November 2025 by ScegliAuto

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