Oh. Duh! Sorry: I thought it was Bentley like the car (for some reason I thought Bentley & BMW shared some parts/manufacture {dumb}).

Is this the manual to get?
BMW X5 (E53) Service Manual: 2000, 2001, 2002, 2003, 2004, 2005, 2006: Bentley Publishers: 9780837616438: Amazon.com: Books

Thanks + pardon my ignorance!