For various reasons I am looking at used Q7s at the moment to replace a 2002 S6 Avant.
The petrol Q7 has the same gorgeous sounding V8 engine as the S6 but given the fuel consumption of the older car I dread to think what an extra 600kg would do to it. As a result the 4.2TDI seems like the best option for me.
There are quite a few out there but I don't know where I should draw the line on mileage. It will only be doing about 5k miles a year so if it was a petrol engine I'd stretch as far as 80k for the right spec but I have no idea what the equivalent is for diesels. I have seen the perfect spec and priced car with 120,000 miles which I initially dismissed but then maybe that's acceptable in a big diesel?
If all the appropriate work and servicing has been done should this be capable of another 20-30,000 miles with normal costs or would I be taking too big a risk on some massive bills?
Any advice or experience would be greatly appreciated. Thanks