hey fella. iirc correctly the upper one on mine doesn't quite look like that, but its the FPR hose. its just vacuum hose, but the BMW part no 51 73 1 257 971
Cheers Tim, but that part's a very thin hose that connects just behind the upper green spot, a hose about 1cm thick comes out of the front and on my car appears to go into the 11 15 1 721 908 bit, which has been blocked off at the back?!
I must have a 2nd one underneath that connects to the metal U bit?
Dunno what someones done there in the past
Trying to make sense of how it should all go, I've made this pic - need any corrections, and that top hose no. still

Have to start a thread on the proper zone when its back up, in the meantime, I'll link up with this one I think...
http://com4.runboard.com/be30zoneforum.ftechhelp.t4925