xfire1, Your build date is right on your drivers side door plate, just below where it says made in Germany. My car is #19280 and my build date was 01/04.
I know it's no consolation, but there are probably 1,000's of cars out there doing the same thing yours is, it just shows up more on a white car. Thanks for pointing it out. Alot of people will be going over their cars tomorrow with a "fine tooth comb" looking for the "rust monster".