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Resetting the Service Light on the Mercedes GLS

Model: Mercedes Gls X166 - Years: 2013, 2014, 2015, 2016, 2017, 2018, 2019
Part: Service warning light

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Video tutorial

When it's time for the service on your Mercedes GLS, a message appears in the center of the instrument cluster to remind you. After completing the required tasks, you need to reset the control system. Sit in the driver's seat, press the start button once, then simultaneously press the "phone" button and the "ok" button on the steering wheel and hold them for about five seconds.

Once you release the buttons, select "assyst plus" on the central display, then confirm "full service" with "ok", select "confirm full service", and confirm the subsequent screens.


Updated on 7 October 2026 by ScegliAuto


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by ScegliAuto

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