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How to Fill the AdBlue Tank on a Mercedes

Model: Mercedes Mercedes Various
Part: AdBlue warning light

When the AdBlue warning light illuminates on the dashboard of your vehicle, it means that the level of the pollution-reducing additive in its tank has dropped below the minimum. To top up and fill the tank, you can find instructions in the video and this description. The filling cap for the urea tank is located next to the diesel cap. Therefore, to access it, open the flap. Unscrew the blue tank cap and use a tube or funnel to pour the contents of the canister into the tank. After filling, replace the cap and the job is done.

Updated on 25 May 2026 by ScegliAuto

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by ScegliAuto

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