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How to Reset the Maintenance Light on a Mercedes C-Class

Model: Mercedes Classe C W204 - Years: 2007, 2008, 2009, 2010, 2011, 2012, 2013
Part: Warning light – error code

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Video tutorial

In this video, you will learn how to reset the maintenance light on a Mercedes C-Class. First, ensure all the car doors are closed, then turn on the ignition and press the phone button on the steering wheel.

Immediately after, press and hold the OK button simultaneously until "ASSYST PLUS" appears on the display. Click on it and select "General Maintenance." Once in this menu, click on "Confirm Maintenance" and then acknowledge the completed maintenance.

Finally, start the engine and check that the light has been reset correctly.


Updated on 31 May 2026 by ScegliAuto


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How to enter the radio code in the Opel Zafira?

In the Opel Zafira, it may happen that the radio locks and consequently requests the appropriate security code, especially after disconnecting or replacing the battery. The code can be found in the documents provided at purchase or through one of the various online recovery services. Once obtained, enter it by following the procedure shown in this tutorial. First, switch on the instrument panel, then press and hold both the "AS" button and the left knob for about 5 seconds. Next, enter the first digit by repeatedly pressing the "1" button, continue with the next 3 buttons, and save the setting by pressing the "AS" button again.

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by ScegliAuto

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