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How to Reset the AdBlue Warning Light on a Mercedes C-Class

Model: Mercedes Classe C W205 - Years 2014-2021
Part: AdBlue warning light

To reset the AdBlue warning light indicating low fluid and the inability to start the engine, you need to use the "Autel" kit. Connect the kit to the vehicle and wait for initialization, select the line with the ECM indication and then click "OK". After that, select the line "P13E500" and click "Clear DTC", wait for the loading and then click "Continue" twice. You will then be prompted to turn off the ignition, so press "OK". Finally, restart the ignition and select "Reset AdBlue", then click "Continue". The reset procedure will then be complete.

Updated on 22 June 2026 by ScegliAuto

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