[pritchd]

It really is dealer dependent.

My local dealer has had two ownership changes since I've been driving BMW's. At the start it was would you like a loaner? - you'd get one offered when you were there, regardless. With the next ownership, you had to ask, and if one was available you'd get it. Now, you must request it when you make your service reservation an they let you know if one is available based on what work you are scheduling.