I am going to Tanyard Motors in Manchester on Monday with a view to buying their 2010 S5 convertible. I have read with horror some tales of issues with the gearbox and info system. Would someone please give me advice on what to check and how. The car has 5 prev owners, 4 Audi services and the last 2 by independent garages, not Audi specialists. The reg no is PN60XBW. Mot history is ok. Thanks.