the B pillar should be just like the W123


remove the bottom cover plate and push the entire thing up. you will then have to unbolt the bottom mounting bracket for the seatbelt(remember which way the belt is so it doesn't look gimpy when reinstalled)


I did this with my seat removed in a w123


the forward headliner that is covered in mbtex... remove the dome light, remove the visors, remove the A pillar covers and rear view mirros( have fun with that.. search it).. then the mirror mount. After all of that it should push forward and down to remove.