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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

To reset the Service light on a Mercedes A-Class, turn on the ignition and navigate through the menu using the controls on the left side of the steering wheel: select the settings option and then "ASSYST PLUS". This will bring up another screen where you can select "Full service". When the confirmation message appears, select "Yes" to reset the light. You can verify the reset by turning off and then turning on the vehicle's ignition.

Updated on 29 August 2026 by ScegliAuto

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