wow... i hope someone has an idea what is going onhere because i'm experiencing the same thing. Hopefully we can get some answers.
A few months ago I had the transmission serviced, plus new plugs, coils and some other things done.
Recently the tranny has been acting up. I'll hit a hard bump and the ASR light will come one the the jetta will be jerky and shift like crap. I will, like everyone else, have to pull over, turn off the car and then restart and things are fine for a while.
I too have been using the triptronic lately to try and aviod having the tranny shift to much. just now on the way home from work, when i got in the city the ASR light came on again soon as i shifted back to auto and the check engine light came on. I don't have my computer on me, but i will check the code tomorrow.
I hope this thing isn't shot. I was reading about replacing certain soleniods may fix these issues. Is that correct? I'll post soon as i know what the code is.
I hope we all can fix these issues cheap and easy.