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How to Reset the Service Light on the Mercedes GLA?

Model: Mercedes Gla MK 1, W156 - Years 2013-2019
Part: Service warning light

To reset the Service light on the Mercedes GLA, insert the ignition key into the corresponding slot: once the instrument cluster is powered on, press and hold the OK button and the button for answering calls, located on the spokes of the steering wheel. This will bring up a menu where you need to scroll and select the "ASSYST PLUS" option and then the "Full Service" option: doing this will allow you to select the service to perform so that the Service light completely disappears from the instrument cluster.

Updated on 17 September 2026 by ScegliAuto

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