I own a 1999 300M that has recently started emitting a high pitched noise from under or behind the dashboard on the driver's side. The noise starts a few minutes after starting the car, and can be stopped by tapping the break pedal. The noise usually comes back in a few minutes, but sometimes not for quite a while. If the noise is present when shutting the car off, it persists for a couple of minutes, then stops. The sound can also be heard outside the car, but I am having no luck locating the source. The brakes, and all other systems, are functioning as designed as far as I can tell. The noise is very annoying. Any help resolving tis issue will be greatly appreciated. Thanks!
- posted
19 years ago