Hi Guys. I’m looking at my first pre-owned M-B. After being a Bimmer guy for 30 + or so years, I’m considering a change. I’m liking the CLK 350 Class C209 coupés around 2009 model year. There are quite a few available around here (South Florida). Trouble is although I’ve driven a few Benz, I don’t know anything about them. I’m very experienced with BMW 3 and 5 series models, having done all of my own maintenance, repairs, etc. So, clue me in. What do I need to know? What do I look for in purchasing a used one from a third party dealer? What do I stay away from? Mileage clues? Are there computer codes through the radio? I should be looking at? I’ll appreciate your guidance and advice. Thanks, guys! Ernie.-