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How to Reset the Maintenance and Oil Light on the 2019 Mercedes GLA

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

In this video, see how to reset the maintenance and oil change light on the Mercedes GLA. First, start the instrument cluster without starting the engine. Ensure the mileage of the car is displayed on the cluster; if not, navigate through the menu using the arrow buttons on the left side of the steering wheel. Once the car's mileage is visible, press the phone button and the OK button simultaneously to access the secret menu. Scroll to the 'Assyst Plus' option and select it using the OK button. Then, select 'Full Service' and then 'Vehicle Service'. At this point, select the type of oil used and then select 'Yes' to confirm. The reset will now be complete, and you can restart the instrument cluster.

Updated on 16 August 2026 by ScegliAuto

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