Hi!
I have a problem with my ML320 from 2008:
When I accelerate or decelerate, there is a knock and the car gives a small shock. This problem can be noticed very well at low speeds and decreases at higher speeds. I mention that the gearbox shifts very well and all the bushings have been checked, including the suspension. It seems to come from somewhere, I think from the center of the car towards the front. Ivan feel a small vibration when I place my hand in front cardan (small one front differential to T-case box).
If anyone has encountered this problem before, please help me with information and tell me where to start.

Thanks!