Try flipping through the menu pages on your steeringwheel.
When you get to the total acummulated mileage, press the " Down " button.
This will show you the " mileage until next service ".
Press and hold the odometer reset button, until the screen asks you, if you really want to reset the maintenance mileage.
Keep holding it until it resets.
Should be all in your owner's manual.

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2007 C 230 Sport.