I have this problem with my key ignition lock, again, I brought my car to my dealer and they printed me out directions on how to unstuck it, however, they are in black and white and its very hard to see what parts they are talking about. It is bulletin number 2017555/4 on accessaudi.com This is the second time it has happened to me and it was completely because I removed the key too fast and had nothing to do with foreign objects inside the slot, contrary to what Audi states on the bulletin. Anyway if you can relay those images to this forum that would be excellent, Thank you so much!