I've done this too on both my 87s, REPEATEDLY! but I'm to a point of diminishing returns as the switchs seems to get "sloppy" the more times it's apart. I've done a bunch of rear door and seat switches, well just about every kind in the car now that I think about it. I even polished all the contacts and bearings to remove oxidation. They seem to last about 3-4 years after an overhaul. Programable are about $122 and nons are $107 through a WorldPac parts jobber.

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Mark
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THE WHITE FLEET
2016 GLE300d 4-MATIC 38K BROWN!
2012 S350 Bluetec==94k WHITE

2007 ML320 CDI==166K WHITE (FOR SALE)

Under new management:
2005 E320 CDI--140K--WHITE
1995 E300-Diesel-133.5K--THE CAR IS BLUE
1986 300SL--97.5K (European) AND WHITE. Back in Europe!
1991 190E 2.3-73K California Perfect.--WHITE
1995 E320-Wagon-159K--WHITE (recently scrapped)
1987 300D Turbo-213K--WHITE
1987 190D 2.5 Turbo-288K--WHITE