1999 Audi A2 I went to push the dipstick back down

I was checking the oil in my wife's 1999 Audi A2 last night and when I went to push the dipstick back down the chamber a small 1-2cm plastic piece at the end broke off. I am not sure yet whether the piece is still in the chamber or fallen to the sump. If I can get it from the chamber I will but if I can't and it ends up in the sump will it cause any issues or likely cause any engine trouble. Do I really need to get the sump removed and the piece taken out? Thanks