http://cgi.ebay.com/ebaymotors/COMFORT-Control-Module-MERCEDES-BENZ-S-Class-1993-1999_W0QQitemZ8013166540QQcategoryZ42612QQssPageNameZWD1VQQrdZ1QQcmdZViewItem

I have no connection to the seller, just bought from him before and remember seeing this module. He has it listed for a long time.
Regards, Mike