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How to Reset the Service Light on a Mercedes C-Class 220 CDI W203

Model: Mercedes Classe C W203 - Years 2000-2007
Part: Service warning light

In this tutorial, you will find the instructions to reset the service light for the regular oil change maintenance on a Mercedes C-Class W203. First, get inside the car and turn on the ignition; then press the button located at the top left of the steering wheel to enter the computer menu. At this point, the maintenance key will appear on the display; now press and hold the button on the instrument cluster for about three seconds to reset the service light correctly!

Updated on 30 April 2026 by ScegliAuto

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