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Take it to the dealer, they have a product that they put in the diff called FMBooster, there is a bulletin on it. They did the same for the e46 M3 diff.
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MY22 X5 M-Sport 45e White, 22"rims, Red Calipers, Ceramic Pads. Better off saying what it does not have and that's a B&O Audio System, otherwise all option boxes are ticked. |