Was this jerking at idle or when you were driving? Unfortunately maf, o2, temp sensor, give much the same syptoms. A faulty coil pack gives a slightly different sensation of being fecked but its hard to describe, you'll know when you have had both and can make the comparision!
You say you have vag com so I would check for missfires on idle, if its only the one cylinder, move swap that coil pack to a different cylinder and see if it follows it, if so its a coily to blame. Get someone to sit in the car with you and log the readings from the Maf, at redline in any gear you should be getting a peak of 120 g/s reading. There are some excellent Ross-Tech write ups on this which explain the procedure in more detail.
In my experience a coil pack doesn't fail intermittently, it just goes! Whereas a maf or o2 sensor will start to play up intermittently before it becomes a permanent problem and I would bet that one of these is the issue.
The other possibility is is that your red line jaunt dislodged some crap in the fuel line / injectors and was just getting burnt off. Some redex through the system wouldn't be a bad idea and a regular thrash to keep her clean is always fun
