Have lived with my c350 cdi for a few months now and am really loving the car. The engine is great and the added pleasure it brings both aurally and in terms of power soon makes me forget about any loss in mpg over a 2l.
The ride ( adjustable dampers and 18's) is the perfect combination of body control and comfort and far superior to my b7 a4. I very rarely use the sport button, only to get the gearbox into first at a junction or traffic lights
But despite all of this and enjoying the Harman kardon stereo (logic 7 processing really helps the sound), the panoramic roof and other extras, I found the whole experience tainted by the steering pulling left. Having been told by my very well thought of MB independent that there was no problem, I took the car to Wheels in motion in Chesham. An hour and a half later and the car is transformed. So much nicer to drive especially on longer journeys. I would recommend to anyone.