I am currently doing this in a 745 now. I remove the fuel line going over the valve cove. Press in the black clip and pull the hose off. You can press by hand or with anything you can find since it may be tight.
'03 745Li, '04 Escalade, '93 Toyota Supra (8.7 seconds @ 161 mph quarter mile). Whoa!
11 550i xdrive stage 2 tune