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How to Reset the Service Light on the Mercedes C300

Model: Mercedes Classe C W205 - Years 2014-2021
Part: Service warning light

This video shows how to reset the service light on the Mercedes C 300 W205. The procedure is similar to most modern Mercedes vehicles. First, turn on the ignition. Once the ignition is on, press and hold the OK button and the phone button simultaneously for about 5 seconds. A menu will appear. Use the arrow keys to scroll through the menu until you reach ASSYST PLUS. Once selected, scroll to the Full Service option and select it again using the OK button. Now, select the type of engine oil that was used for the vehicle's service. After selecting, confirm that you want to reset the light. The procedure will now be complete, and you can return to the main screen using the appropriate button.

Updated on 15 September 2026 by ScegliAuto

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