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

Model: Mercedes Classe B MK 3, W247 - Years 2019-2026
Part: Service warning light

To completely clear the Service light that appears on the instrument cluster of the Mercedes-Benz B-Class, turn on the ignition and navigate through the menu using the directional arrows on the steering wheel controls. Now select the icon with two spanners and then choose the "ASSYST PLUS" option. Next, select "FULL SERVICE", and proceed to choose the oil grade based on what was used for the replacement. A screen will appear asking you to confirm the operation: selecting "Yes" will clear the Service light.

Posted on 3 March 2026 by ScegliAuto

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