THe A/C control unit is only held in by spring clips on the left and right side. There are no screws holding it in. You can simply use a plastic wedge/ prying tool and slide in in one side in between the control unit and dash panel and wedge the unit out as shown in the picture.
BenzWorld.org forum is one of the largest Mercedes-Benz owner websites offering the most comprehensive collection of Mercedes-Benz information anywhere in the world. The site includes MB Forums, News, Galleries, Publications, Classifieds, Events and much more!