Can't figure out what hose this is please help.

[Be6Es4]

I have a 4.2 liter v8 in the 2004 Audi s4 and I have a hole in one of the power steering lines and I can't figure out which one it is I post these pictures its on the drivers side just to make that black metal bar in the picture if someone could please tell me what part that says it would really help me so I can get my car back down the road.

[JAFlury87]

It's one of the power steering cooler lines. The return line I think. Appears to be #11 on this diagram. http://genuineaudiparts.com/parts/20...iagram=1397382