Resting your hand on the shifter while turning left "can" cause the
shifter to move right... your hand/arm is applying a centrifugal
force to the right. You might think that you are not moving your
hand / arm, but you are.
If it truely is moving on its own, you will have to take the
shifter apart to investigate.
October, 14, 2012 AT 4:13 AM
I found some info / diagrams. I haven't had one of these apart, so
I don't know if the "detent" is built into the Tiptronic Switch / Cover
or if it is part of the shifter assembly below the cover.