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2013 MERCEDES M – Class Maintenance Light Reset Instructions

1. Turn the ignition to position 1 (one position before starting the engine).
2. The kilometre/mileage counter must appear in the display. If not displayed, press the down button repeatedly until displayed.
3. Press the left arrow button repeatedly until “trip” is displayed.
4. Press and hold phone button and then within 1 second press and hold down the OK button. Hold for 5 seconds then the workshop menu will be displayed “Vehicle data, Dynamometer Test, Change Brake Lining and ASSYST PLUS”.
5. Select ASSYST PLUS and confirm with OK button.
6. Select FULL SERVICE and confirm with OK button.
7. Select CONFIRM SERV and confirm with OK button.
8. Select the oil used “Oil qual. 229.3” or “Oil qual. 229.5” and confirm with OK button.
9. Select YES and confirm with OK button.
10. Select CONFIRMATION and confirm selection by pressing OK button. “Full service carried out” appears in the display.
11. Press the OK button and exit the menu.
12. Turn the ignition off and then start the engine to verify the indicator has been reset.
*Close all doors, windows, hood and trunk when performing reset

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