it is a 2004 audi a4 1.8t ultrasport.

while driving, particularly in 3rd and 5th gear - the shifter "ghost shifts" out of gear and into neutral. i have notice that the shifter sometimes "hesitates" to go into gear like it's sticky or something (i feel like it sticks closer to me, rather than closer to the engine).

what could be causing this? i haven't had the tranny fluid changed in year - could that be it?

thanks!