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How to reset the service light on a 2020 Mercedes A-Class.

Model: Mercedes Classe A W177 - Years: 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026
Part: Service warning light

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Video tutorial

Today we will see how to reset the service light on a 2020 Mercedes A-Class vehicle. Press the back button and the OK button simultaneously to access the car service menu.

Once inside, use the touch arrow button to select the service option. Next, select the complete service option and reset to start the procedure.

Once finished, return to the main menu to restart the instrument cluster. It is important to check the kilometers in the settings menu to ensure they have been set correctly.

If the reset does not work, it is necessary to check the fuse for the oil pressure sensor or the oil tank sensor.


Posted on 18 December 2025 by ScegliAuto


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by ScegliAuto

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