VCDS can only tell you what the car knows, and only as fast as the car is willing to divulge it.So is there anything I can look at in VCDS to confirm or deny what is wrong? Quick recap is that no codes are shown, even when it actually happens. Tried to watch the solenoids but the hex-net seems quite delayed.
Although I know very little about automatic transmissions (I'm old school and prefer 3-pedal cars), I'm inclined to agree with you.My experience tells me a solenoid is physically sticking (gummed up, whatever). Basically, is there any general consensus on what the next step should be? Thank you.
I don't think that 09A supports the Output Test function (it barely supports more than one MVB group at a time) but that would be worth a shot.You could try output tests in VCDS.
After suggesting you check the SSP I grabbed my copy and gave it a 3 min review. The whole thing is a good read .. but page 52 includes a handy chart with the "Off/On" solenoid valves and I came up with a stuck on (mechanically) N89 -or- slow/delay activation of N92 between 3rd to 4th theory. So.. I read through the thread again and Peter came up with the same idea. We could both be wrong :-) but that would be a good place to start if VW sells them separately (rather than a loaded valve body).Shifting from 3rd to 4th involves the disengagement of the N89 solenoid and the engagement of the N92 solenoid, so maybe one of these valves is not be functioning correctly.