Thinking of buying an A5 3.0 tdi 2008-2009

Hi everyone. I am thinking about swapping my car with a 2008-2009 A5. I am aware that an old car can come with some technical issues and it cannot be perfect after 12 years. Before my current car I had two other VAGs from that period and they were ok. There are many reasons why I would choose this model (coupe but spacious, quattro, enough power) and it's in the right price range £6,500-£7,500 at 80-90k miles.
Is there something in particular that needs to be checked before buying this model ? (3.0tdi quattro, manual).
Thank you