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2005 MERCEDES S – Class Maintenance Light Reset Instructions

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1. Turn the ignition to position 1 (one position before starting the engine).
2. Press and hold (phone) button and within 1 second press OK and then hold both buttons for 5 seconds. The shop menu is displayed.
3. Press down arrow repeatedly until "ASSYST PLUS" is highlighted and confirm with OK.
4. Press down arrow until "SERVICE PERFORMED" is highlighted and confirm with OK.
5. Press down arrow to select "DUE SERVICES" and confirm with OK.
6. Press down arrow to select "COMPLETE SERVICE" and confirm with OK.
7. Turn the ignition off and then start the engine to verify the indicator has been reset.

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