May sound like a dumb question, but instead of assuming, I figured I'd ask:

If I want to change the fluids for all drive-train differentials, what am I looking at (i.e., which components)?

In my Mitsubishi Evolution 8 it's as simple as changing the clutch, transfer case, and rear diff fluids. I figure the Audi should be similar, apart from the automatic transmission, for which I'll be requesting that my dealer perform the TSB (37 07 07).

l8r)

 

Just about the same, at the rear of the transmission is where the torsen differential sits which uses a synthetic Castrol 75-90W gear oil, as well as the rear diff. Both fill holes should be a simple 3/4 square hole towards the top, fill until they start to spill out and you're done.

 

Sweet, thanks.

l8r)