A4 Tiptronic slipping

[Kent McLean]

1999 A4 V6 with Tiptronic -- the transmission is starting to act all funky.

Sometimes it acts normal.

Sometimes, when taking off from a stop, the engine will rev like you're slipping 
a manual transmission clutch, and the car will take off, but more slowly, as 
though the clutch is slipping.

Sometimes, when coming to a stop, it will go Ka-Lunk! real badly, like being hit 
from behind at 2-3 MPH.

Sometimes, when taking off from a stop, it will rev like it is in neutral, then 
Ka-Lunk, it will bang into 1st.

Sometimes the PRN54321 indicator on the dash, which normally lights up whatever 
gear it is in, will light up all the letters/numbers. When that happens, it 
seems like its in 3rd gear; from a start it feels like you're slipping the 
clutch on a manual in car, taking off from 3rd.  Moving the shift lever to +/- 
manual mode does not switch it into manual mode; all the lights stay lit. 
Turning off the car and restarting it resets the lights to act normal.

With the A4 Tiptronic, there is no dipstick to check for fluid. It all happens 
with a drain/fill plug on the transmission pan.

Suggestions? I'm thinking of taking it to Aamco for a transmission fluid flush. 
(Torching the car is nice thought, but is not an option.)

-- 
Kent McLean
1990 V8 w/5-speed and other mods
1991 200 TQA #3, with mods
1999 A4 Avant, V6 Tiptronic
gone: '91 200 TQA x2, '94 100 S Avant, '89 200 TQ "Bad Puppy"