Ok so when driving home tonight i noticed while in tiptronic on my 2006 2.5l auto jetta that my car "slips" when shifting from 2nd to 3rd gear. when i shift up from 2nd into 3rd gear it shifts just fine and doesnt "hit" but it feels like the trans slips and the rpms increase (went all the way to redline) without the car going faster. but only happens going into 3rd gear. I kept driving and couldnt really duplicate the problem, but when i drive more aggressively i notice a slight 200-300 rpm increase before settling down. nothing hits or bumps or knocks. I already had the valve body replaced because it was hitting hard going from 2nd to 3rd gear. anyone got any ideas? This only happens every so often.