I had a quick look on realoem.com. They list 3 part numbers for this screen, with different dates, looks like they improved it over time?
http://realoem.com/bmw/showparts.do?...10&hg=65&fg=45
01 Central information display 10" 1 03/2011 65509243897 ENDED
01 Central information display 10" 1 09/2011 65509241826 ENDED
01 Central information display 10" 1 07/2012 65509266385
But lets say its the latest screen (at least that's what you'd want to replace it with if its compatible)... a UK price for that component alone is £1,787.44 + vat = £2144.40 which a quick google to USD is $3271.07
JUST FOR THE SCREEN!!!
They are taking the right royal pi$$ with that.