After leasing my last couple of cars, I have never thought about maintenance because the cars where not mine and regularly serviced.
Due to the increase in car leasing prices I decided to purchase my Audi A6 at one year old and with low mileage.
I now think more about problems I may have in the future when the warranty expires, such as the DPF. I have heard horror stories mainly with low usage of the DPF failing and failing after 50 or 60k miles. Just when warranty expires.
Apparently costing thousands to replace. I have looked on the net and come across this geezer from Australia explaining the DPF and why they really only cost a few hundred pounds to manufacture.
Have a look at the Youtube link, very informative, I know it's only an opinion but seems reasonable to me, also have a look at what he says about Premier Diesel too. Thanks Mark