S6 buying advice

[Dan_79]

Hi all. I'm looking to purchase a 2017 S6 saloon. The one I am looking at has done 64k miles, had full Audi history, except for 2 services that were done at a Saab main dealer for some reason. Its up for 23k

I am aware of common issues such as air suspension, and turbo screen problems. But, is there anything else I should look out for?

Also, does anyone know where I can see a copy of the service schedule for these cars? What's due when etc... The dealer has a print out of when the services have been carried out and mileage, but no details as to what has actually been done. The main thing I am looking for is when the gearbox is due for a service, and if its been done, along with any other services that may be due on the rear diff. I've tried looking on line and with Audi but cant seem to find much.

Thanks

Dan