I have been driving only backwaerts for six months and after severe neck problems, headaches, as well as dizziness I ask for your help!!!!

Have fun now, I'm really finished with my humble knowledge. ATF is new and accurate enough inside, sieve OK, multifunction switch new.
After the car starts to light up the switch buttons normally, if I switch to D, all lights on (emergency program) but he does not want to start forwaerts, in R loeft everything normal. In the forum I read something about the slider box, one of you has a shema about this part, because I don't have a repair guide.
I can't let read out any error codes either, because they don't have software for the V8 here in Dubrovnik/Croatia at AUDI?
Did jemad have a problem with you guys, where should I keep looking?
Ask for more advice, since I am really already with the nerves at the end ?!!

Thanks in advance and grunts from Croatia to all V8 ter
Anton Lengyel
(I'm really lonely here, there are only 3 parts of the V8 driving all over Croatia, one of them Rueckwaerts!?
)