High pitch noise from engine bay with engine off.

[Lbsigman]

Heard it for the first time about 15 minutes after I parked the car in my garage.

I did a Google search and I found a thread with a video on the F30 side of the forum that accurately represents the sound I am hearing.

Any clue as to what it is? I couldn't pin point the location it was coming from.

Here is the thread: http://www.f30post.com/forums/showthread.php?t=896923

Here's the video from that thread:

[Motorsport.Nick]

No responses? 5 year old thread bump whoa.

My car is doing the same thing every 22 seconds. Last drove the car home from work, parked at my house at 5pm and at 9:30 pm its buzzing away in the garage. So weird! I hate the think some tiny actuator is wearing it self out..?