Just an update to say it is possible to replace the hose that lotuschris was talking about in his original post without removing the subframe .
Access is very hard and can best be acheived by removing main intake rubber pipe, I took the throttle body off so as not to damage it by mistake (over caucious maybe?) battery and battery tray.
Any wiring can be carefully moved out of the way also.
The clip that holds the rubber hose to the hard pipe on the steering rack can then be unclipped using a flat screwdriver.
If like me you only need to re-attach the hose to the hard pipe then just push the rubber hose back onto the hard pipe then refasten using a high quality jubilee type clip.
I think that some people would say that you should use a better type of fastening clip for this hydraulic application, but given that Alfa had used one of the ordinarly used clips (you know, the annoying ones that really need special pliers or lots of swearing if have none
) I choose to use a jubilee clip with a hex head so I could reach over the back of the engine with about a 12" extension bar, universal joint and socket wrench.
It also helps to push on the jubilee clip first tightened just enough so it doesn't spin when trying to place the socket on it.
Anyway sorry to drag the reply out but thought it may be of use to someone.
Also thanks to 0of0 for posting the link below. The rubber hose that myself and lotuschris were needing to deal with attaches to the far end of the hard pipe you replaced.
Thanks again for the replies its good to know that help is but a few keystrokes away.