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

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

To reset the service light on the Mercedes-Benz B-Class, turn on the instrument cluster and navigate through the menu using the directional arrows on the steering wheel controls. Select the icon with two spanners and then choose the ASSYST PLUS option. Next, select FULL SERVICE, and proceed to choose the oil quality based on what was used for the replacement. A screen will then appear asking if you want to confirm the operation: selecting "Yes" will automatically turn off the service light.

Updated on 15 August 2026 by ScegliAuto

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