went to my car after work today, put key in lock, turned key -- nothing happens -- turns freely both ways, but doesnt unlock the door
opened the door from the other side, drove home, then ripped the door to bits to see what was up. I think ive found the problem, this bit dropped out

i take it the bit indicated is meant to have something attached to it ??
So, is this bit readily available from VAG? and how easy will it all be to repair - me and a mate tried to take the handle off for a better look but couldnt do that either !
Any help is much appreciated
Steve