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How to Reset the Service Light on a Mercedes C-Class W204

Model: Mercedes Classe C W204 - Years 2007-2013
Part: Service warning light

To reset the service light on a Mercedes C-Class W204, start by turning the key to position 1 (the position before the dashboard lights up); press and hold the "ok" button on the left stalk and the button with the phone icon on the right stalk until the display shows "vehicle data"; scroll down using the arrow until you see "assyst plus"; scroll to "full service"; scroll to "conf. Full. Serv."; scroll to "yes"; scroll to "confirm". At this point, the operation is complete, you can return to the main menu and remove the key. Finally, turn the ignition back on and check if the service light has been reset.

Updated on 25 May 2026 by ScegliAuto

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