I am hearing a constant whistling noise from the engine of my 316I SE. The noise does not get louder when I accelerate.
I've uploaded a video, you can hear the noise but the quality is not that great. Listen carefully for the noise in the background. http://media.putfile.com/noise86
I only bought the car yesterday, and I don't think it was making that noise when I test drove it. Either that or I may not have noticed it. (Can only hear it when outside of the car)
Any ideas what is wrong? (if anything)