Re: 164 Door panel
I take it you mean the interior panel? I am not sure if this is everything but basically as follows:
1. Remove the self tapping screws and plain washers securing the bottom edge of the trim.
2. Remove the red corner light from the door panel. I think there is another screw under the lens.
3. I think there is a screw under the electric window button. Remove the electric window button switch by gently prising out with a blunt flat bladed screwdriver.
4. There is one or two M6 cross head screws securing the door trim around the central area; I think these are all covered by small plastic discs on the rear doors, and are hidden behind 6" long plastic covers in the door storage pockets on the front doors.
5. Unscrew the door release button from the top edge of the door trim.
I think this is all the screws so next....
6. The door trim can now be removed by gently(!) levering from the bottom edge to release the plastic popper fasteners (you know the ones I mean?). Some force is necessary in reality.
7. The top edge of the door (together with the internal rubber seal unhooks from the top edge of the door frame.
8. The door trim remains attached to the door by the release cable, and I must admit I have never disconnected this. I have managed to carry out repairs (renewing the central locking actuator normally) with the trim attached.
Hope this helps, good luck.