2001 Mercedes C240
A week ago i hit into a hump and the lower transmission pipe came out without my knowledge until I moved about a kilometer when I noticed a drag. I stopped and called a mechanic who tolled it.
He replaced the pipe and added ELF CVT transmission fluid. The car started dragging when I come to a stop and i want to accelerate. This is accompanied by excessive vibration of the engine. It can go as far as 5sec before it can accelerate.
I toke it back and he changed transmission fluid to dextron 3. But it's still performing the same.
What can be the problem?


