You didn't ask this, but:

I use Ultra Black Gasket maker - Black in color - nearly every time I pull an X5 door panel to re-glue the plastic anchors, brackets, etc on the inside of the panel. I apply the gasket maker, then clamp the piece as best I can with slide clamps or c-clamps with pieces of wood and/or cardboard to prevent marring the leather surface.

Very happy with results.

I think I got the idea here:
https://xoutpost.com/bmw-sav-forums/...door-card.html