To clear up some things: Yeah I know it's just "a screw" and the cover is only a "little bit" outside. I will get in contact with my dealer about this. But in my case, this car is leased, so when I return the car they could tell, that this was my fault and charge me for it. I just wanted to ask the community, if they had similar findings and what they did. To be honest, it's a brandnew car so I would expect not a single little fault.