How do you reset your a and b service indicator message on a 2007 Mercedes Benz 230 sport?

1. Insert key into ignition switch.."position 1"

2. Press message buttons on Left side of steering wheel repeatedly until the mileage is displayed within the multifunction display.

3. Press cluster illumination button (reset button) 3 times in rapid succession. The battery voltage will be displayed, and an audible signal will sound.

4. Turn key in ignition to position "2".

5. Press UP or DOWN arrow buttons until the "Service Menu" appears.

6. Press reset button (1) once. The Oil Type menu is displayed.

7. Use the "+" and "-" buttons to select the oil used for the service.

8. Press the UP and DOWN arrows to confirm. The display will show "RESET OIL CONFIRMATION". Push Reset button for 3 seconds. The message "Service confirmed" is displayed.