Whats this part please, have a coolant leak because the seal on this part is knackered. It connects the therm sensor and radiator hose, its small metal pipe. You can see on images the pink colour where coolant is leaking from. The car is a xtype 2.5 v6 2003 awd automatic uk.

 

Welcome to the forums Jlstewart,

I've moved your question from General Tech Help to X-Type forum. Members here with the same model will be able to help.

Please follow this link New Member Area - Intro a MUST - Jaguar Forums - Jaguar Enthusiasts Forum to the New Member Area - Intro a MUST forum and post some information about yourself and your vehicle for all members to see. In return you'll get a proper welcome and some useful advice about posting to the forum.

Graham

 

Well, I actually cannot see the pink colour... It would be handy, if you could place an arrow pointing at the part, which you want to have identified.
I can only guess, which part you are after, and I picked the fat short metal elbow, which is in the middle of all your pictures - and if it is: Call me Sherlock Holmes, because I found this part in the parts catalogue...:
https://www.mediafire.com/file/8k05q...-2005.pdf/file

...BUT the part is in the parts catalogue with an incorrect P/N, namely: Page 3, Part no 12 = Fitting Radiator Hose = C2S016877, BUT that P/N is incorrect and I took a wild guess (as I simply found that "0" funny), and tried C2S16877 - and that is your part-number, hoping that that is the part you are after...

PS: Obviously, if this is the part you were looking for and the coolant squirts out somewhere at the ends, I would not but the metal pipe new, but I would measure the exact dimensions of the seals there and order some seals on Aliexpress with that exact dimension

 

https://getwrenching.com/products/c2s-22458jag