Well this is exactly what I thought, something is amiss with the new 7 speed tranny, I just test-drove a new one, and it shifted terribly, so bad that I am not going to think of one till they figure out what is going on.
Personally a 7 speed tranny has no place in a diesel, give me a 3,4 or my 5 speed tranny anyday, with this huge torque available, you wonder why benz would not figure this out on there own.