Hi all - I looked at several different posts and didn't see any quite like what I'm experiencing, so here goes - I got caught in VERY heavy rain downpour for about 5-7 minutes a couple of nights ago (I usually don't drive the beast - 2000 black on black E39 M5 - in the rain if I can avoid it), and after getting home into the garage and turning the beast off, weird electrical things started happening - brake lights went briefly on and off by themselves for 5 min or so, and the car wouldn't go to "sleep" - the instrument cluster "control section", odometer, tripometer and outside temp all stay on/lit, as well as the NAV/OBC screen (I can still manually turn off the NAV/OBC screen, which I did). I am also able to turn on and play the stereo - it's as if it thinks the key is in position 1, but the key is out of the car. Also, upon opening the door to get out of the car, there's a warning for a couple seconds that the key is in the ignition, which it isn't. I cannot lock/arm the car with the key fob, since it's in this strange condition. I figured this condition would eventually kill my battery, and sure enough it did after the 2nd night. I jump started the car this morning, drove it for 20 mins (still runs like a healthy beast BTW!) and the battery got charged back up. Now when I get home, I disconnect the negative wire from the battery so it won't drain (losing all saved settings and everything gets reset - grrrrr), and I am able to re-connect it and start it and go, but I definitely don't want to make a habit of doing that!!! So, any ideas what in the world is going on??? Did something get wet and now is forever going to be "ON"? I hate having an injured beast!!! Thanks for any suggestions you might have - I know there's are LOTS of knowledgeable folks in this forum and I really appreciate having such a great resource!!!