Bringing an old thread out of the grave. I am tasked with a 2005 4.4L (2-14-2005 production date) E53 X5. Report is a metal to metal noise and doesn't drive in either drive or reverse. I had read early portion of thread and hoped it was the classic sheared splines on front driveshaft. Later in thread, i read that the design changed before 2005 to where it is x drive now.

So where would be the places, things to check on with this 2005 please? I am newb to E53 X5 but have owned 2 diesel bmw (E90 and E70) so not a newb to working on BMWs. I have intermediate mechanic skills but that is a realtive judgement thing. I switched out the diff on the E90 to go to a LSD Wavetrac if that better clarifies. thanks

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1967 Plymouth Barracuda Formula S
2011 BMW 335D
2013 BMW X5D
2021 Toyota Tacoma, 6 spd manual