Oh yeah.

It's got something green in there.
Have topped it up with green oat juice, Monoethylene glycol stuff, and will do a complete flush once it's summer and put in the same as my TD5, red oat. Just to have only one coolant for both of them.

 

Replace that whole assembly. Hell, while you're at it, if the one looks that bad, might as well do all of them. That plastic Y right there cracked on me and dumped all of the coolant such that I had to get it towed home.
(tangent incoming)
- Sitting in a parking lot, waiting for someone
- Person looks at the Rover confused, looks at me, looks back at the car, comes up to the window.
- "Hey, is it supposed to be leaking antifreeze?"
- Me, who is aware of small leaks occasionally - "Um, a little bit?"
- Guy - "Like a lot?"
- Me - proceeds to get out of the car to witness my entire cooling system Niagra Falls-ing itself out the bottom and running down the street.
"Is it supposed to be leaking?" LOL

Edit for link to a complete cooling hose kit:
Discovery 2 Coolant Hose And Thermostat Kit (roverparts.com)

 

Yeah, I probably will do this in the summer, with the inline mod.
I see there are a few hoses on the way out, like the one going over the alternator pulley. It's been cracked at the end and have been pushed further, so theres like a millimeter of three between the hose and alternator pulley...

There's are a lot of things to mend, but it was "priced accordingly"...
I really should make a topic on the project section at some point. Have just found it, as I have not really gone outside the D2 section on this forum..