To BMM32005, you have to remove your rear cover for the ski pass. Then you'll see the Allen Key and the button. Push that button, then the motors are disengaged.
After that, you have to remove the rear back seat, the one that you sit on it. Then you'll see, approximately 3 inches in front of the emergency button a place to insert the allen key. Then insert it and turn counterclock wise and the convertible lid will raise.