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How to Reset the Service Light on the Mercedes Benz GLA

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

To reset the service light or oil light on the Mercedes GLA model X156, follow these steps: - Turn on the ignition; - Wait a few seconds for the car to load any faults; - Press the call and OK buttons simultaneously to access the menu; - Select 'Vehicle Data'; - Select 'Assyst Plus'; - Select 'Full Service'; Wait for the semi-automatic reset to complete before returning to the main menu, then turn off the ignition and restart it. If the fault persists, visit a workshop for a check.

Updated on 6 September 2026 by ScegliAuto

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