Hi W140 fam..
Today I had to replace my (RHD) drivers side window rubber. Mine was broken and would cause terrible noise on open roads and highways when I drove with the windows up.
So when i discovered the MB breakers the other day, it was one of the first parts I asked for. I even helped the guy strip it off another W140! Complete drivers door window rubber!
SO below is a pictorial of how I was successful (even though havnt slept 52 hours at that point) at installing my window rubber.
It was not a diffecult task, just had to figure out a couple things along the way.
What I like to do when Im working on interior or anything that requires one or more doors to be open for long periods of time, I just remove fuse number 11 from the boot. This cuts out all the convinience lights, so the battery wont be drained. (Be ware this fuse also is for central locking, and some other things so use this only when dealing mostly cosmetic / mechanical repairs. Alternatively you could disconnect the battery, but that effort does not justify the means in this case)
Dismantle front door panel. this panel is for a 1993/4 S320, others might be slightly different. Use the card trick to remove electric seat control wood panel, open secret arm-rest compartment, remove screw covers and unscrew screws. Disconnect all connections leading to the panel, and door handle. (Be careful not to adjust door handle setting wrong) Also remove speakers with frame. You will need that space for access.
Remove top corner side mirror cover. Unscrew 3 screws and unplug mirror. Gently remove mirror.
Remove outer door trim. You can use a srewdriver, or even just your fingers. Main thing is not to bend this trim, or break it. It cost alot to replace anything on the W140.
Roll window completely down. Then with a screw driver pry out the rubber bottom corner closest to the pillar. Gently remove the rest of the rubber, with complete caustion. lol I broke mine taking it off, must have been quite fragile from age. Remove the entire rubber, it should be in 1 piece, and is part of insulation for the side mirror also.
Installing new rubber. I started at the mirror, and worked my way up from there. Gently push it fully into its place and make sure it is secure there. Run the long part down into the door, but make sure it stays on its guide rail. Here you will need to stick your hand into the door itself from the inside, and help the rubber meat the glass. once they are alined within the door, roll the window up afew centimeters so that the glass slides into the rubber. Then from the top slide the rubber all the way, using your hand inside the door to help the rubber stay on the guide rail, and fit securely in place by being pushed in. the rest is pretty much easy and self explanatory, before you know it the Rubber is completeing in. Roll the window completely up and down just to test and make sure installation was successful. (You can also greese the window rail for smooth operation)
Re-assemble everthing, without breaking anything. remember be gentle, only apply pressure when absolutely nessasary. make sure door panel clips are alined with holes before "Hitting" them into place.
Welldone, your new door rubber is now successfully installed!