The key in my W124 barrel worked perfectly, until today. I tried to start the car and it wouldn't turn, just like it was the wrong key. After much turning and bad language, it did turn and I got home. I tried it again and now it is totally stuffed and it will not turn at all. Same with the spare key. The steering lock wasn't on at the time it jammed (although it is now) I did spray WD40 into it (as best you can without the little straw: where do they all go?) but it seems just as jammed. Help! I have tomorrow off, but I must have the car working for Friday Any ideas on what I can do to fix this please. Thanks!