astra van Mystery Coolant pipe.. Help

[mazzyfozzy]

Hi All 

I'm after some advice on the name or part number of a coolant hose. My van is 2011 1.7Cdti.

I've asked my local vauxhall dealership and they're none the wiser so I was hoping someone on here might know what it's called and where I can find one. The pipe goes from the EGR cooler (I think) to a T Junction next to the header tank. The pipe seems to have a 90° bend with a twist in it. I appreciate the pipe is swollen aswell.

 

Thanks in advance