C6 (2009-2011 refresh) A6 owners chime in!

So in the next couple of months I plan on moving on from my 2009 VW CC VR6, and of course the logical upgrade would be to an Audi. Having driven a 2006 A6 (brother used to own one), I have fallen in love with those cars. To me everything seems perfect for an all around car.

I was browsing listings and I noticed this one relatively close to where I live: http://www.alphamotorsport.net/2011-Audi-A6/Used-Car/Fredericksburg-VA/5055091/Details.aspx

My question is why is this car priced as low as it is, and what should I concerned about when I go to check it out? I know they completely redesigned everything in 2012, and that was really my first model year option, but for this price/mileage I don't think I would find a better deal. If I don't spring for this one, I may just hold off until I can get a fully loaded 2012 (I'm also entertaining the thought of a MB E550 4Matic, or a Volvo V60 R-Design, but that's not what y'all want to hear!).

I know that some models from this year had water pump issues, is that something I should double check? General thoughts on the C6 2009-11 refresh are appreciated as well.