First post, and it's a not a good un I'm afraid.
My better half's Polo is a MY01 1.4 8v (6N?? ) - recently in the main dealers for it's annual service.
Returned from dealers with advisory on the front brakes.
Not wanting to cough up hundreds for the dealers to do something I can do in my sleep decided to do them myself yesterday.
Only to discover the dealers have gunned the wheel bolts on, and not torqued them. Some were loose
, some were excessively tight 
and....One was crossed
Result?
One knacked thread that won't be tightened properly.
I've tried cleaning the thread, used different bolts - no avail.
So, question;
How easy is the hub to replace on these things?
When I had the disc off, I noted that there were three locating screws on the hub behind the disc. Is it a case of remove hub nut, remove locating screws and replace?
Thanks in advance.
Dunk