Trying to sell Audi-parts

[habbah67]

I tried to put my Audi parts (related to steering wheel). I got a warning saying something that I need to give lots of information related to these parts.
Then I looked other similar items and thought that if I state the car Id and state how many km I have driven that solves it. There were not so much info in the other items from other sellers as well.
Now I got another german language e-mail that I am a criminal and I cannot sell these parts in very good condition.
What do I have to tell in the listing that I am not a criminal. I cannot understand german but I translate it with google. It is really hard to understand what I am doing wrong? Please help me someone. I'd really would like to understand what information is needed. The e-mail from ebay.de does not help a bit?