This is slightly unusual, I had an audi 2.8Q 30 V tiptronic trans. which used to make a loud click noise and "shuffle" at the rear by the drivers side when I take sharp turns (mostly when driving slow). I thought it was weird b/c the car would kind of shift a bit, as if something had dropped from the undercast, and then was driven over while I was turning. As well, there was a little noise. Anyways, now I have another a4 2.8Q 30 V manual trans. and it does the same thing!!! What could this be?????

 

I had a car that did this once.... turned out that the sway bar needed replaced... check that.