Hello folks, wondering if any of you with a 4.8is could help me out here, after returning home from a enthusiastic drive i noticed the smell of burning oil coming from the front end of the car, upon investigation i found what i think is an oil breather pipe just sitting there not connected to anything. Any of you got a 4.8 and would be willing to have a look and see if you can see where this pipe is supposed to attach to would be greatly appreciated. I have hunted hi and low to try and see where it goes but i am unable to see anything.
See red arrow for location of pipe and green arrow shows oil residue.

2004 54 plate 4.8is X5 E53 facelift in Carbonswarz-metalic.