I finally had some free time to install my carbon fiber surround for my steering wheel, replacing the black plastic that comes stock.
There are some short write ups with how to get the wheel off but most applied to B8 (T30 torx), the B8.5 uses a method of retaining clips (2).
This picture shows those clips:
http://img.tapatalk.com/d/14/03/09/a3uva2a7.jpg
First start with getting your wheel lined up. One clip should be visible at the bottom and one at the top (there’s a little indent on the column at the bottom to know when you are lined up properly). Next start with disconnecting the ground terminal in the trunk, insert your key to drain any residual power.
Look under the steering wheel and column and use a long and skinny flat head to "pry" ever so slightly the clip out of the retaining part - clip is on the airbag, retainer is on the car/column. Your going to be prying "inward" if that makes sense. As you are doing this put your fingers under the edge of the airbag and pry it out about 1/4 of an inch to prevent the the clip from springing back in.
Next move to the top of the wheel and take your key fob, remove the metal key part and use it to pry the other clip. It’s the perfect size for this task and made life easier than trying to find the perfect flat head.
Again put your fingers under the airbag so secure the clip from going back in. Once you have both "released" give a firm but CONTROLLED pull in order to remove the airbag. STOP NOW!
There are still some connections you need to remove before you can pull the airbag out further than 2-2.5 inches.
The main one is this yellow clip with a green locking clip built in. The second is the control connector coming out of the yellow clip and to your steering wheel controls.
http://img.tapatalk.com/d/14/03/09/aju9yqed.jpg
http://img.tapatalk.com/d/14/03/09/qusepyqa.jpg
http://img.tapatalk.com/d/14/03/09/uhy2agy5.jpg
First pull the green locking clip towards you, then like all Audi clips there is a tab you need to push in and the yellow clip comes out.
Then press in on the metallic , tiny micro clip in the connector piece from the yellow clip to the steering wheel controls.
If you are just removing the airbag you are done! If not, continue on!