To remove the starter jack up the car on the right side and remove the old filter there is a 14 mm hex socket bolt on the bottom of the starter and on the back side of the bell housing there is a 10 mm hex socket bolt just in front of the transmission fluid delivery tube. It's not easy to get to you can take of the right from tire to try and reach the bolt this way or from right side of the transmission through the tranny mount under the tranny fluid delivery tube you'll need a flex joint for on your socket. It's not a fun bolt to get to. But can be done and I have done done it three times in the last week. Replacing the tranny. Good luck
I notice this thread is a bit old, but I am homing you still have some kind of Audi V8 repair manual in stock. I figure it'd be odd to email you 5 years after a post asking for one so if you see this let me know.