code

I need a bit of help here. Can anyone tell me whether the numbers on the moving part of the door locks is a key code? The attached picture shows where the number is. The numbers match on both door locks, but the key which works on the ignition and the trunk does not work on one of the...

Hey guys, New to the forums, I have a 72' Bavaria, and I'm having trouble id'ing the engine. I can about confused after an oil change, and the filter not fitting. The Filter was a tad too big diameter wise, and the oil filter housing in a bolt in from the top (which I like anyways.)...