Originally Posted by AP
I don't have a M5 but a 530d , but yes there is a big think manual that covers all of the features whether you have them in your particular car or not.
The info is also available on the I-drive.
I think I may have seen the manual as a pdf somewhere, most probably the BMW USA site I think (not sure though) - quick google may find it for you.
You did note that I'm looking for a USER'S MANUAL, not the owner's manual, which I do have as a PDF file.