How to Reset the Maintenance Alert on a Mercedes C230

1. Insert the key into the ignition. Turn the key to the first position. Press the 'Menu' button until the mileage display appears on the information center.
2. Press and release the 'Reset' button three times.
3. Turn the ignition key to the second position. Press and release the lower 'Display' button and confirm that the service interval appears on the information center.
4. Press the 'Reset' button once. Use the '+' or '-' buttons to highlight and select the proper oil weight for the oil in your car.
5. Press and release the top 'Display' button. Press and hold 'Reset' for at least three seconds. Press the top 'Display' button until the mileage reading appears. Turn the key back to the 'OFF' position.