Sorry haven't a clue!! but you could go onto the XE Forum. xeforums.co.uk Members on there have a lot of knowledge where to source parts etc.
Someone might be able to help you. Good luck.
Might be a bit late in replying but I love my XE 250 R Sport 2017 Petrol. Had the car for two years with no problems electrical or mechanical. Find downloading updates to the Pro system a bit of a faff but that's it. On a good run get about 40 mpg around town or short runs it goes down to about 30 ish. Must be my heavy foot!!