I just had a good look how to remove these B Pillars on mine .Looks to me its not a to small of a job removing these Pillars ,unlike the Audi or BMW's have that only have two small nuts on the bottom & one on each side to remove .
It really shows the Build quality of the W140's ,just amazing how these cars are well build ,trouble for us is that sometimes it requires us to remove a quarter or more parts just to get to some specific parts on the car ,the B Pillars are just one of those .:thumbsup:
Maybe these don't even have a screw or nuts anywhere and are just forced in with those clips on the side ,check on that when you get there , on my car they are solid and I cant see anything ,not nuts or screws nowhere ,even the rubber around the door blocks it on the top ,cant see anything .
Maybe Eddie.A could give you a better hint then me on these .