[Yas]

Hi peeps,
I have been searching how to replace the wind screen washer pump, but can't find the answer I need.

Can anyone here please advise me how to replace the this part? I have tried from the top, under the bonnet, but can't get to it.
My mechanic had a quick look for me (as a favour) and removed the offside wheel and arch liner. Still can't get to it and he now thinks that maybe the bumper needs to come off for access. Is this right?

Any advice would be great!
Thanks
Yas