Mine required SC visit. Did not have/notice the side floor vibration.
I just got my P85, last day in Sept 2014. Just started to hear the squeaking sound under the hood. It can be there when the compressor is on and especially when the fan winds down to turn off. I'll keep an ear out for it and see how often it happens.
Also, the reason I responded to this particular post was that I to notice a slight vibrating side floor. So the compressor fan fixes that vibration?
Can a ranger fix that problem or does it have to be fixed by a SC?