[gerapau]

I have a 2006 325i and I just started hearing a strange noise. The other day I was outside and kept hearing a very faint short buzzing noise that I thought was comming from the house across the street. One of my kids walked by my car and asked why it was buzzing. Sure enough I walked over and opened the hood and there is an intermittent faint buzz comming from the motor. It sounds like it is comming from the motor itself and happens maybe every 30 seconds or so but is not regular. The car is off and the keys removed. I definately haven't heard it before and now I heard it again tonight. Any ideas?