Wonderful car for the intended purpose; very happy with the purchase.
A most relaxing ride; very comfortable & supportive seats and least amount of road noise I have experienced in a car. Have the premium 2 and sports package. Got 46mpg with cruise control going 71mph on a road trip; around town average ~30. Get well over 500 miles per tank of diesel. Stereo system overall is fantastic, navigation system is a much needed improvement over previous generation and is very good.
Engineering is what is expected; best in class trunk size when trunk closes engineered to not pinch the luggage! All season floor mats a must for us; cost extra but are great.
Bluetooth works fine & easy to set up.
I have had this car since 5-2011 and have now put 15,000 miles on it. It's solid, fits me like a glove, handles well, if not like a sports car and has all the bells and whistles I need. I added the luxury package, steering wheel, dynamic seating (a must have) and the P2 package. Fuel mileage has been almost 32 overall and 36-39 HWY. The DEF fluid is no big deal. Buy at most gas stations or car parts stores for $12 for 2.5gals. I think I have added 5 gals total (maybe 7.5). Big deal. M-B will scalp you if they put it in but it's simply filling a tank. Love the car and not one issue.
This vehicle replaces our 2008 E320 Blue-Tec and what an improvement. Mercedes has made great improvements in cabin design and layout, improved the voice command control and greatly improved the navigation and radio manual controls. To top it off we're getting 38 to 40 mpg for combined city/highway driving (much better than EPA estimates and better than our 2008) and there's more than enough power to pass anything on the highway. This is a really great vehicle.