owwo

+1, BMW needs to come up with a better solution to the DVD player noise. It is annoying to hear the DVD reader spinning when your driving in a quiet and luxurious car.

And I wish the buzzing noise at high speed was only as quiet as the DVD player noise. The high-pitched buzzing is really unsettling...I guess the easiest solution would be to drive at lower speeds, but what's the fun in doing that?

BMDiesel

there may be a relation with the 'dripping sound while driving in light rain' from the right hand side of the windscreen?
(apart from that that is also an annoying sound)

but you mention an interference like sound. Some fuel injection part perhaps, is that located on the right hand side in the engine bay?

aosman

I have the same problem with this high-pitched squeal coming from the front quadrant of the car (somewhere to the left of the glove compartment). This annoying sound happens intermittently. 80% of the time it happens when I first start the car. It lasts typically about 10-30 seconds. Sometimes, the sound comes while I am driving (45-55MPG). My 545i is at the dealer now and I was told because they can't hear it, they will not be able to help me. Some folks in old posts suggested the possibility of the CCC fan or the fan the sucks the air from the little vent. I told this to the SA but he said he will not change anything unless he hears it first.

I told the SA if they open up the center area and inspect the fans but he does not look like he is willing to do it.

I brought the car for service 2 times before for this noise and every time they told me they can not duplicate it. This is the third time. I am going to go out of warranty soon and I am at a loss of what to do! Any suggestions?

porsche911targa

My dealer told me that it's the air hitting the plastic air-intake boxes under the bumper.