06 X5 3.0i E53 howling when accelerating at 55mphh+

[Optllizer]

Well, After making the above post it started vibrating pretty bad from under the driver seat. Now a day later i heard a really bad noise from under the car and now it cant move. Luckily i wasnt far from my house.

The front driveshaft is now spinning freely when putting it in reverse. Is my TC dead or my splines bad?

I will be checking for codes later but currently no error or lights are on. Its like it has no idea it cant move.

https://streamable.com/fpik3w

[X5chemist]

Wow! Looks like the front splines are shot.

[wpoll]

Uncommon on an LCI... but I guess it can happen.

[X5chemist]

Mine is an LCI! Now, I'm really curious. I sold a spacer because LCI are known less to strip splines.

[Optllizer]

Yeah it was a ticking time bomb that was gonna go off at any time. Luckily it was less than a mile from my house and not on the highway.

ill get the driveshaft splines extension and have someone do it. I did check for codes just to make sure but nothing.

How hard is the job?

[andrewwynn]

Isn’t 06 x drive? Or not until e 70?

x drive should shut off front axle if prop shaft disconnected but that sound is exactly what splines shot on front prop sounds like.

[Optllizer]

Anyway to get the car moving somehow? Just to my driveway which is less than a mile from where its stopped right now. Like disconnect something to make it run in some limp type mode.

[andrewwynn]

If x drive pulling the fuse will turn off the front axle and you can at least drive. (I’ve done this on 08 to spin just rear axle off the ground to isolate squeak)

[Optllizer]

LCI im pretty sure is xdrive. Which fuse would it be?

[andrewwynn]

https://xoutpost.com/bmw-sav-forums/...sfer-case.html