Hi ive just bought an adui a6 2.5tdi. Its got high milage can i expect any large problems from it and if so what would you recomend to be proactive in this area?

Hi, as long as the engine had has got no loud knocking noises you should be ok as these engines are one of the best they made.

Check for any oil leaks if their are any get them sorted this will ensure you have correct oil pressure whilst driving.

Give it a good service if it hasnt had one recently its best to service say once every 6 months depending on how much driving you do.

When doing a service use high milage oil as this protects the engine and stops any leaks from becoming to bad it is a good option buying more expensive oil this will help prolong the life of the engine.

its also a good idea to buy a fuel cleaner this can be brought from most petrol stations make sure you buy correct type ie for a diesel im not saying you wont but alot of people just pick up the first they see then the car breaks down.
These fuel cleaners work through the fuel system ensuring that it is all clean and ensure that your car is running at its best use this every 3 or 4 months.
Other than that just keep it serviced regular and you should never have any problems these engines pretty much last forever and its a good choice of car to buy.

Let me know if you need further assistance ok