Bought an '09 for the wife back in February, appears to be well built. 140 hp, gobs of torque, been averaging 40 MPG at approx. 70 MPH w/air on. Would have preferred a manual but ended up with an auto (DSG) version which some people are having some pretty serious problems with. Ours has been rock solid.
MB is really missing the boat. What I would have preferred was a C-class 4-cyl diesel. These things are all over Europe but for some reason MB corporate thinks us Mericans need an inefficient go fast 6 or 8 cyl engine in everything we drive.
I'm sure I'll be dreading the VW stealership when the car develops an issue. They have a nationally known bad rep for customer/product support.
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BENZSTER
W123, '81 240D, Pastel Grey/Blue Tex

W126, '88 300 SEL, Artic White/Grey Leather