Battery Light Came On

Greetings,

I have a 98 528 which I pressure wash engine every year with no issues, this time battery light came on, and hints on what can go when it gets wet? Alternator, regulator, fuse?

Thanks, Mike
http://Offshore-Wealth.com

Today when i was driving to work my BATTERY light came on today on 2002 530i after a while ABS and BRAKE light came on after that AIRBAG light came on and message came on saying TRANS. SAFEFAIL, 20 minutes later my car died i found out that alternatore died, guy that was towing my car told me the same thing. I guess i'm lucky that i have dealer warranty.