I have to be honest. I've been leary of driving too far or fast in case I really mess something up. I have a friend at Daimler who offered to take a look at it. Fingers crossed!
It occurs all the time when moving. When I turn, brake, shift or whatever. It doesn't vary in pitch or volume. It simply remains constant as long as I am going over 25 mph. I'm having my hub assembly checked, in hoped that is it.