Jerking is happening again…

Took a drive today, and from standing still on the intersection, car started jerking and making this awful grinding noise all thru to 5th gear. Tried to release throttle, and applied it again, but this did not help. A careful reader would know that I have had a car for a bit less than two months, since I got it back from the dealership. Where Volkswagen concluded that it is running as it should.

Just to clarify, noise was always there, even the same day I got it back from the dealership, but as they claimed that it is “standard” I wanted to explore my options and plan my actions in this matter.