Ok here's the deal now, and I would live your input on this..

I cannot seem to locate that exact number TCM. My Original TCM is from a 3/99 build date Audi 2.8 A6Q Part number is 4B0 927 156 CE.

The Audi dealer and others around here tell me that the TCM i need is for a 2000/2001 model tith the EKX transmission.
(apparantly my car must have had an early 2000 TCM or something but a 1999 TCM is out of the question)

I found a TCM today. A guy will sell it to me and it's out of a 2000 Audi A6Q. This part number is 4B0 927 156 AJ. I did some research and found out that yes this TCM operates the 5 speed auto backed to a 2.8 v6 just like mine..

The audi dealer tells me that any 2000/2001 TCM that operates a 2.8 quattro automatic will work, so should I just bear it and buy it and cross my fingers? Or has someone been through this before and knows that it's not going to work..

Many thanks!
Shawn

 

Once again, I would try drying out the TCM over a heater vent overnight before replacing with another one. Many times, if the moisture is totally gone, it will work fine.

 

I have already tried that.. The circuit board in my unit was so saturated that the semicunductors on the pcb are rusted and literaly falling off the board!! This one's shot...

 

Too bad. Well you can try Shokan.