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How to Reset the Service Light on a Mercedes Class B W247

Model: Mercedes Classe B MK 3, W247 - Years: 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026
Part: Service warning light

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Video tutorial

In this video, learn how to reset the service light on a Mercedes Class B, and generally on all Mercedes produced from 2018 to 2023: turn on the instrument cluster, press the "back" button located on the left side of the steering wheel for 5 seconds, while also pressing the black "ok" button for another 3 seconds.

This opens the "workshop" menu.

Use the touch button "assist+" located on the steering wheel to select "general maintenance" and then "confirm maintenance". Select the type of oil used and confirm with "ok". Turn off the car and then turn it back on to check that the oil light has disappeared.


Posted on 12 March 2026 by ScegliAuto


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by ScegliAuto

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