Audi Transmission comment

["Al Powell" <APOWELL@agcom.tamu.edu>]

> From: firkins@eis.net.au (john firkins)

> There are oil leaks sprouting from the rear main, front diff, a/c
> compressor & one of the p/s hoses. All are minor weeps & appear to long
> standing judging from the staining left after dealer steam cleaned them.
> The major problem is the auto trans, it is silky smooth except shifting
> into reverse when warm which results in a solid thump.  Jim (who has just
> returned from working with Lotus F1 team) suspects a faulty pump but is
> unsure since it shifts perfectly when cold & computer reporting no faults.
> Any ideas?
> 
> John Firkins

John - the symptoms you report are a DIRECT indication that the
hydraulic pump is going out.  This requires a total teardown and 
rebuild.  I found a VERY sharp guy in town who could do it for the 
bargain price of $1500.  If you don't think that's good - Audi will 
sell only the transmission AND transaxle (no transmission 
separately!!) for over $3000!!!!!!!!!  Your other option is to find a 
used/rebuilt unit to put in, which you may be able to do cheaper than 
rebuilding your own.  If so, replace the torque converter at the same 
time, as a rebuilt is not expensive.  This DOES require dropping the 
transaxle.  On re-install, OVERFILL as per factory advice with 
synthetic lube.

Your observation about temp - - 
It's OK when cold and bad when warm because the fluid runs thinner 
when it's warm, and the pump seals fail to hold.  This problem shows 
up first in Reverse, then progresses to forward gears.  This car 
needs big $$ work  The symptoms are classic..


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