I don't see this one under the transmission or maintenance sections:
http://www.camaro5.com/forums/showthread.php?t=161654
I think it's for the manual trans cars with LSD. Not sure how different the V6 A6 procedure would be, other than the fact you don't need to add friction modifier to them. The fill/drain bolt locations may be different for the V6 A6, too, not sure.