Audi A8 4.2 l Automatic transmission problems

Hey, guys.
since I and my workshop don't know any more, I thought I'd check the Internet for a solution and I came across you immediately!!!
I looked at the page a little bit more closely and I am convinced that you can help me and feel right at home here...
So now I need the GURRU from you, who knows A8 4.2 l automatic transmission BJ.97.
My A8 has been switching since c. 4 weeks into the emergency run and then can only drive in the first and in the return gear... however the error reader shows nothing and if you disconnect the battery and jam again after half an hour I come back a few km and as soon as I come to a traffic light and it has to slowly back in the first then also closesssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssss
Who can help me or even had the same problem????? (ii) the amount of the aid to be paid in respect of the period of validity of the aid;