The performance is ok, and comfortable level is ok. However, after five years, the interior materials are deteriorating and torn apart. For my car, the car seat cover is torn apart and the buttons on the steering wheel need to be replaced. All because of poor quality of the artificial material used. For example, the buttons on the steering wheels are wrapped with some plastic film and are now all messed up.
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.
Blocks out most exterior noise.
AC, stereo system with i-phone are outstanding.
Spouse likes the driver side message and playing Pandora from the i-phone.
For several weeks in the spring diesel was cheaper than gas.
Filling up for fuel about half as often from previous car as the tank is large (~21 gallon) and gets great mileage.
Auto up and down for every window from all seats.
At ~ 15k miles, not a single problem with the car.
Purchased the trunk liner - feels cheap compared to Honda products.
Spouse wants passenger seat message just like the one the in driver's seat.
A little soft in steering/driving but to some extent was a known compromise driving a bigger sedan.
Keyless go works great but need to periodically replace batteries in FOB (~ 6-9 months & is easy to do).
Took too long to set up garage door opener from rear view mirror - finally called Mercedes and had it done within an hour.
Need to keep an eye out for diesel stations and only use the reputable ones.
Last but not least, this car is probably most expensive in class to purchase.
2011 Mercedes-Benz E-Class E550 4dr Sedan (5.5L 8cyl 7A)
This is the 2011 E-Class sedan with the sport package in obsidian black with grey interior. After some initial problems with the airmatic suspension (replaced rear air springs) and rattles in the rear of the vehicle (replaced seat belt rollers and roller blind system), the vehicle is now unbeatable in style, comfort and performance.
Road "presence"; performance; head-turner; driveability in all conditions; quality of fit and finish.
AMG wheels prone to damage from road hazards due to soft alloy used; front seat (side) air conditioner louvers are silver colored and can reflect sunlight obscuring ability to see out of the side view mirrors.
2011 Mercedes-Benz E-Class E350 4dr Sedan (3.5L 6cyl 7A)
I have owned the E350 sedan for a year and a half and alternate it between a 2009 S550 and a 2007 BMW 530i. I live in Costa Rica where the roads consist of endless pot holes and hap-hazard patches with undulating curves and steep inclines. The E350 has proven to be a very capable car and is the one I choose for the twisty mountain roads. It is not outright sporty, but extremely agile and confident on the curves and absorbs the rough surfaces without completely isolating the driver, no simple feat considering the coil suspension. The engine and transmission make short work of passing and climbing steep hills and the brakes don't exhibit fade on long downhill treks. Overall, highly impressed.
-Well balanced car with great ride and handling.
-Smooth engine has broad torque band.
-Reliable, having gone through 12,000 punishing miles of rough serpentine mountain roads and pot-hole ridden, congested city streets without any problems. The car feels very well built, much more so than the previous 2 generations.
-Intelligent Headlight Sytem (IHS) illuminates un-lit roads perfectly, especially around corners. The HID beams have great throw.
-Plethora of safety features like Distronic and Blind Spot assist
-The firm seats are very comfortable, especially for long trips.
-Excellent Harman Kardon sound system.
-Classically styled interior with warm ambient lighting.
-Command system interface looks like it is from the 90's.
-Engine can do with more power, throttle should be re-mapped to eliminate the need to floor the pedal for quick response.
-Some cheap interior finishes like faux aluminum accents and plastic dash.
-Electronic gear shift slow to switch from drive to reverse and vice versa.
-Foot operated parking brake, are you serious?
-iPod/aux input connector in glove box and not the center console.
-Trunk lid hinges protrude into trunk space and can crush objects underneath.
-Panoramic sunroof screen should be solid a la S-Class and not translucent. It gets hot here!