Damn pipe!

[AUIIForte]

Hey fellas, after spending almost 2 grand on getting a reco'd and warranted auto trans refitted, I thought that was it. Smooth running from there!

I thought wrong.

This one is a little hard to describe, but this I will over come with some photos.

My car has been reaching the 'normal running temp' area of the gauge very quickly recently. So this morning at 5:30am, just before going to work, I topped up my coolant box. I started up the car and let it idle for a moment while I left to get a bucket of water to wash all the frost off my windows.

After washing all the frost, I hopped into my car and noticed that only after about 2 mins of idling, it was already in the 'normal running temp', which I thought was strange. Ah well, I left to work.

Then after getting back from work, I turned the car off and heard a hissing noise, so I opened up the bonnet and saw steam coming out from a pipe. So I thought that this was what was causing my car to heat up so much, water was escaping through a little tiny hole in one of the pipes.

My coolant box under the bonnet has turned a rusty orange colour (and I am hoping that is normal). And the steam/water spraying out of the pipe was the exact same colour. But the pipe it was coming out of was a metal pipe. Which I was really depressed about. I was hoping it would be one of the rubber ones so that I can just change it cheaply and quickly and problem solved.

But I have no idea how to go about getting this particular pipe changed. Here is what I am talking about. (Pictures are from google).

The crack is so small, but its enough to spit all the water out of my cooling system. Can anybody help me out here? I noticed the pipe goes all the way back, almost under the engine, and I am just hoping it is repairable and not too expensive!

Any help would be great, sorry for the long post (I just noticed).

EDIT: It may be hard to see from those small pictures, but its the small thin pipe just under the thick rubber one.