2013 825i with 400 hours, 5000 miles. Im noticing the front wheels feel like they are dragging. Almost to the point where they want to slide on the gravel and make the rear tires spin a little. Doesn't seem to make any difference with the 4x4 switch on or off. The weird thing is in reverse it seems to drive smooth with no binding/dragging. Does this sound like a front differential problem? Does the driveshaft to the front end spin constantly and 4x4 is controlled by an actuator on the diff itself? Thanks!
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