Strange phenomenon, very disturbing DSG 3.2er

Hello professionals! Yesterday it happened to me for the second time: Will stop at the traffic light, in manual mode, switch down yourself (while I am standing on the brake) and if I turn right before the stand in the 1st, give after about 1 second a heavy jerk forward. As if someone would drive me up. That happened to me yesterday for the 2nd time now, thought the first time, hmm funny, probably an electronic error, but yesterday was now again and now I worry! If I go close to a cyclist now, and then this happens again, I think there are problems! What could that be? Solution?