I rebuilt my range rover seat switch last night. It is a little intimidating since there are 16 little bb sized bearings and 8 springs. Once you carefully pry the case open (someone recommended doing this in a tupperware pan in case things fall out) you simply disassemble each switch, clean them and reassemble. I was not able to get the main front/back rocker to come loose so it is still a little rough but the other adjustments work great now. 

I was still thinking of trying to find a replacement for just in case but the least expensive I have found is $124.95. My wife drives the Rover as well so I really need the seat adjustment working. 

We did just take the Rover up to lake Cushman on the Olympic Peninsula for a weekend of camping at a friends lot. Loaded with the family, gear and the rooftop tent we got 15.5 mpg. Not bad for a v8.

Hope this helps someone.

the other Craig

I am glad you mentioned this. I started prying on the big toggles and decided not to pry it loose since it seemed like it was going to break something to remove it. I was thinking of trying to go back in and take it apart later. Now I don't have to. I still don't know which direction managed to lower the seat but that has been very nice since I am 6'2" and was always grazing my head on the roof.

the other Craig