Has anyone with an S noticed a low f reverb type noise when travelling in traffic (D6 around 45mph). You know they type of situation where little or no accelerator is being used, the car almost idling.

The noise is so low it could be almost descibed as in the sub woofer range of hip hop music except constant.

The noise has a period to it sort of like when you open the roof fully, or those who had an ML at any time when you have the rear windows only slightly open, but more continuous.

It goes away when I Tip down to 5 and accelerate, its almost like the pepper is complaining about going to slow.