How to Reset the Service B in a Mercedes C230

1. Insert the key into the ignition and turn it until the battery comes or the engine turns on.
2. Locate the left and right arrow buttons on the left side of your steering wheel. Press either button until the mileage is displayed on the instrument panel display screen.
3. Press the up or down button until the service symbol appears on the screen.
4. Locate the trip odometer reset button to the left of the instrument panel. Hold the reset button for a few seconds until the screen displays the message, 'Do you want to reset the service interval? Confirm with the R-button.' Release the button once the phrase appears.
5. Press the reset button to reset the Service B notification.