Hi Paul..... well, it would appear (having gone at length through the owners manual) that it just does not have the facility of a sat nav.... it seems that there is an option to have one, but even where the hard button for the nav would be, i have a climate button instead :-( Im gutted that a SE would be missing such a basic tool, and my father has a standard xf thats five years old, and that has sat nav. I looked in the boot, but can see no dvd, just the on board computer box, and the battery.... spare wheel etc etc.