[f10freak]

Hello so i bought this used 2012 535xi last week and i'm having this what i am calling throttle lag. When accelerating from a stop or just bellow 30-40 mph in general doesn't matter the gear the car has a weird jerk or throttle lag. It shifts fine it just has these like jerks in it. I took it to the dealership and my SA told me plug and coils so i did that but that made no difference.
Any idea as to what could be causing it. I was looking into it maybe being a VANOS sensor or some sort of timing problem. But i figured id ask here to see if anyone has dealt with anything similar.
thanks guys