If the BMW 3 E90 shows a whistling and other extraneous sounds when moving at a high speed, a number of actions are needed to find the cause of the noise. First you have to try to drive with the music turned off and see if the whistle that can come from the columns has disappeared. If the unpleasant sound does not disappear, it may be a resonating sound that is made when the wheel drives are rotated.
If the machine is equipped with a hatch, it is worth trying to open it a little bit and then close it again. It was possible that the hatch was not completely closed, and there was a noise of a running air flow from the outside.
