Well, as I have 50k to go I shan't worry, its unlikely I'll still own it, but as I say, the Ford man he says "It'll need changing at 100k or 10 years whichever comes first."
I had a 14 series engined Sierra which is a camchain drive car that was supposedly never needing to be changed. The camchain snapped at 86k and Ford said "Its out of warranty, sorry."
I think that any failure like that should be covered.
2005 Focus C-Max 1.8 Petrol Ghia + Sony 6 disc, 2007 tail lights, Led bulbs all over and HID front fogs.