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How to Reset the Service Light in the Mercedes GL 450?

Model: Mercedes Gl MK 2, X166 - Years: 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019
Part: Service warning light

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Video tutorial

Resetting the service light in the Mercedes GL 450, as shown in this tutorial, is a straightforward and quick operation. Before proceeding, ensure all scheduled maintenance tasks are completed.

Start by sitting inside the vehicle, then turn the key to the first position and hold down both the call button and the "OK" button. Next, navigate to "ASSYST PLUS", "Full Service", and perform the reset by selecting "Confirm Full Service". To complete the procedure, simply switch off and then on the instrument cluster.


Updated on 28 August 2026 by ScegliAuto


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by ScegliAuto

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