The E320 CDI is very fuel efficient and fun to drive, but the transmission has occassional problems. Slipping during takeoff which my dealer says is normal. Styling is rather bland. Seats could stand to be a little more comfortable. The lumbar support should be power and easier to reach. My biggest complaint is the antique nav system. Somebody must have bought these on a $59 closeout. Charging $2900 for this system should be a felony. It's an unbelievably antiquated system with few features, no touch screen, and no voice command. Also there's no bluetooth unless you buy their phone. I own a 2007 Toyota Camry that blows this car away with superior luxury features. Sorry MB, you need to catch up
The diesel engine is wonderfully built. Kudos.
Start providing a decent nav system and reimburse the folks that got stuck with the current one.