I recently purchased aAudi A4 2ltr Tdi S-Line, i noticed a whirring noise and a bit of vibration coming from the rear wheels and prosumed it was the bearings and balancing, so i took it to the company i bought it from (Evan Halshaw) who told me theres nothing wrong with the bearings and that it is a common issue caused by uneven tyre wear on the inside of the rear tyres caused by the camber set up, in which Audi are willing to comprimise in order to increase handling and stability! is this true or are they just trying to pull the wool over my eyes? can anybody shed some light on this??