Something weird happened to Mrs. R (as usual ): the mirror control botton simply splitted in two pieces... So I removed the door panel to get to the module (thanks Art! ).

But now I'm stuck. How do I remove the control module? It seems to be in two parts, button cover (grey part) and control (black). The cover is attached to the door panel by four metal clips. Two of them are easily accessible, but forget the other ones, on the panel side.

Any help would be appreciated!

PS: I've looked at the HowTO section, but it doesn't seem to apply to this model...