I purchased this wagon with 82k on it and now it has around 117k. It has had a few repairs, but nothing truly outrageous. It drives very well, especially at high speeds on the highway. This wagon can take on 85 mph all day. I have averaged about 21 mpg, with about half highway and half city. The 4Matic AWD is truly a dream. One nice touch is the third seat. It's not habitable by adults, but my children think its a novelty to sit in a rear- facing seat. One maintenance item to watch out for: the rear window regulators WILL break, and they are about $400 to replace from the dealer. Try to find a European auto mechanic rather than always bringing it to the dealer.
Dealership is just a total rip-off, some reliability issues. Cupholders are horrendous. Many of these cars have a tendency to burn oil. Mine goes through about two quarts every five thousand miles. Fix the window regulator issue.
This is my third benz but first of the 21st century. I stayed away after hearing about issues after the DM/Chrysler merge, but was convinced by my mechanic that the w210 chassis are well constructed and reliable vehicles. While I still own my classic MBs, this is a fine vehicle with modern amenities like powerful A/C, ventilated seats, side curtain airbags. Powerful V6, 4matic, stability and traction control make this an all weather warrior. Car is new to me so I will report back later on reliability.
driving comfort and safety features.
My wife wants a better cupholder. I could care less. I find there is wind noise with the sunroof open at speed. Doesn't occur on my older MBs.
Like others, we bought the car thinking we'd keep it for a long time. After 6 years and many, many trips to the dealer we are saying bye to the Benz. Thankfully, the warranty covered replacement of the entire dashboard assembly, brakes, phone, hatch and various other electrical issues. Unfortunately, post-warranty I was stuck with the bill for the struts, rotors, hatch (again) and a new $100 key! Like others, it's burning oil at a rapid pace. The car drives well, is very stable and eats up highway miles. Performance in the snow is fantastic - better than our Land Rover! Cargo/people hauling space is great.
Stability, solid feel of chassis and interior switches. Cargo capacity and people capacity. Performance of 4Matic in the snow. Indestructible leather (survived unscathed after 6 years with two small kids; cleans up well)
Quality - MB should take responsibility for the known issues beyond warranty (Oil consumption, for example). They lost me as a repeat customer.