I have a repair manual for the 8 series... Both models are similar.
I'll see if there anything in particular that may apply to your question.
Try this website as well...
HTTP://BIMMER.ROADFLY.COM
Click on message boards, then bmw message forum and then click on your model
There is a ton of good information. You may find the manual there, I did! (for the 8 series)
LOS