I have a big vibration problem with my 2007 Stype XS,tried all the usual things,changed discs,pads,all the main places to look,my garage is stumped,please any advice would be grateful.

Have you checked the shock absorber bottom bushes ?

Tyres, tyre pressures, tracking, balancing and, as above. You should also check the run out on the new discs.

A bent wheel is also a possibility.

I recently felt minor vibrations on my XF. I had the front tyres replaced with the Jaguar recommended Pirelli P zero, and I can really feel the smoothness now. Only problem is it now high;lights the vibrations from the back tyres which I now need to change!!!

This could be a possibility for your vibrations.