HI, I've got a 2002 A6 2.5 TDI quattro (avant) approaching the 100,000 mile level. Ideally I'd like to keep it a while longer, but am starting to get worried about its potential for expensive bills, such as the suspension arms (?), the auto box, the quattro etc.

Anyone of a view of what i could expect if i decide to keep it, rather than trade it in while it is still worth something? What are the major bits of work that might need doing, and what might they cost etc?

The mileage was mostly done on motorway, and we only use it now for short local trips, so its had a fairly easy life despite its high mileage.

Any input greatly appreciated, thx. Chris