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How to Reset the Service Light on a 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

To reset the Service light on a Mercedes A-Class, turn on the ignition and navigate through the menu using the directional arrows on the steering wheel controls. Then select the icon with two wrenches and 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 appear asking whether to confirm the operation: by selecting "Yes," the Service light will be completely reset.


Updated on 29 October 2026 by ScegliAuto


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On the instrument cluster of the MG ZS, the tire pressure light that appears can be reset by inflating the tires to the correct pressure: this value will be indicated on the sticker attached to the driver's door pillar. Once the tires have been properly inflated, you can turn on the instrument cluster and navigate through the menu until you find the option that indicates tire pressure: if this screen shows the new values, the light will turn off; otherwise, you will need to drive for a few miles so that the sensors can read the new values and turn off the light afterward.

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by ScegliAuto

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