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How to Reset the Service Light on a Mercedes A-Class?

Model: Mercedes Classe A W177 - Years 2018-2026
Part: Service warning light

On the Mercedes A-Class, you can completely eliminate the Service light by turning on the ignition and navigating through the menu using the directional arrows on the steering wheel controls. Then, select the icon with two wrenches and choose the "ASSYST PLUS" option. Next, select "FULL SERVICE," and proceed to choose the oil quality based on what was used for the change. A screen will appear asking if you want to confirm the procedure: by selecting "Yes," the Service light will be completely cleared.

Posted on 17 August 2026 by ScegliAuto

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