Re: W107 Door Strap update
To Styria and anybody who is interested: I removed the door trim, removed the pin connecting the strap to the body and replaced it with a smaller temporary one. Closed the door as much as possible to retract the strap and removed the temporary pin, opened the door and removed the countersunk screw behind the strap under the rubber door seal.
Removed a second screw which is recessed about strap high on inner door panel. The strap assembly was now free to remove carefully from the door under the window electric connectors. I replaced the new one in the reverse order. I hope this makes sense.