I am going to look at my first Audi tomorrow and was wondering if anyone had advice on common faults to look for? The owner has admitted one fault currently, which is a noise when the power steering is at full lock, looks like it could just need the fluid bled and refilled? The model is the 2008 - Audi A6 2.0 TDi Limited Edition, 130,000 miles, has 10 service stamps I believe and tidy looking inside and out in pictures, 2 owners etc, last one since 2012 or so. Any thing critical I should look for? Thanks for any advice. PS. Trying to get my head around the MMI and if it has AMI fitted on the Limited Edition, does anyone know? End goal is to get as much functionality/streaming with my android handset. It definitely has the colour navigation system, but not the MMI plus I don't think, I would consider a different model of A6 like the Le Mans if that has an easier route for phone functionality/streaming music. Any advice with my first Audi purchase would be greatly appreciated!