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International Automotive Technicians Network
Re: Driveline noise
Posted to Technical Discussion Forum on 4/2/2021

From the model number it looks like you have an E83-chassis first-gen X3.

It should have a 2-piece rear driveshaft with a center bearing. The membrane that supports the center bearing fails and the shaft whips and makes a racket.

Re the rubber-disc coupler... Login to read more.