1) With engine off and key not inserted keep pushing the left button on the instruments cluster ;
2) Insert key and turn to position 1 (do not leave the previous button) ;
3) Wait about 5 seconds (button alway pushed) until the service will show on the display ;
4) Leave the button for a moment and then push it again until the rESET on the display will start flashing ;
5) Now release the button and quickly push it again when rESET displays when flashing
Done!
Hope this will help someone that wants to change the engine oil by him/herself without going to the stealer...ehm...dealer