I recently sold my Overfinch Range Rover to buy my MB300CE.
IF the power seat switch goes, the Mercedes 300td switch fits. Mine used to fail on a regular basis but I just to pulled it out, clean it, bang it a few times put it back in and it worked again.
LOTS of help and tips on rangerovers.net.

__________________
88 300CE 300,000kms
Black Pearl, Burgandy Leather
Euro Lights.
Its for sale. Its SOLD