New to the forum, and I'm trying to get a feel for things, i wanted to ask you first before I make a thread. Simple question. On the tiptronic transmission, what is the size of the filler screw? I know the drain plug is 17mm, but reading through google,and some UK web page they say the filler plug or filler screw is a size M30 hex is this correct?

I just recently replaced my RMS, I may have lost just little to much ATF from the transmission, which is causing the car to jerk violently when in drive. It will jerk harsh in drive at 2.5grand then drive. In reverse I need to get it up to like 4-5grand before anything happens.

Let me know thanks in advance