Coolant regulator, spot on, cheers.
I'd had a look at that diagram Mark, and i was thinking it was no.9, so glad you've confirmed this.
On the door cards side of things, that's good news too. saloon being the same as avant for the lower door trim.
I'll pick up 5lts of oil and filter and get an oil change done.
do i go fully synthetic or semi? 5w40