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

[andrewwynn]

Read that thread. It says better to unplug the motor under the car.

When I’ve unplug the fuse it made the wipers run continuously, something I’m sure you would be ok with to avoid a tow.

If park works it should work to disable x drive.

OG x five, park does not work if any spline not connected on the front axle gear train.

[Optllizer]

Originally Posted by andrewwynn

Read that thread. It says better to unplug the motor under the car.

When I’ve unplug the fuse it made the wipers run continuously, something I’m sure you would be ok with to avoid a tow.

If park works it should work to disable x drive.

OG x five, park does not work if any spline not connected on the front axle gear train.

I went and tried to first disconnect the plug on the TC Motor but still couldn't move. Then I tried the TC fuse. All the lights came on for ABS BRAKE 4x4 which is fine since fuse is out but still couldn't move. The rear driveshaft is spinning normally. I am a bit worried its something else in combination with bad splines.

[wpoll]

Not sure if you have to pull both fuses, F205 (40A, in the trunk) and F46 (7.5A, behind the glovebox)...

[andrewwynn]

https://www.xbimmers.com/forums/show....php?t=2131759

Might be e70 only.

[Optllizer]

Originally Posted by andrewwynn

https://www.xbimmers.com/forums/show....php?t=2131759

Might be e70 only.

Is it normal that i can feel and hear the rear driveshaft spinning while in the car after this happening in D and R or is it from the broken front shaft.

[andrewwynn]

It's sounding more like an internal fault of the TC. The rear shaft has no way to disengage from the transmission.

[Optllizer]

Originally Posted by andrewwynn

It's sounding more like an internal fault of the TC. The rear shaft has no way to disengage from the transmission.

If my TC was broken, would it start throwing faults? PASoft shows nothing

[Optllizer]

I went to the car this morning and took a second look. Its 99% the front splines without a doubt. Video shows the tc spinning fine and looking at the rear shaft, its spinning fine too. Now theres rust dust from the spinning now. Got the extension and hopefully the inner splines are ok. Since the oem splines dont reach it.

[andrewwynn]

I've not seen the problem on the facelift but the sound did exactly match. I've pulled the front shaft off x-drive before and the system just worked and shut off the front axle.

I'm wondering if you have an additional issue like worm gear on the tc motor so it's not disengaging so it's reverting to old school always on.

[Optllizer]

Originally Posted by andrewwynn

I've not seen the problem on the facelift but the sound did exactly match. I've pulled the front shaft off x-drive before and the system just worked and shut off the front axle.

I'm wondering if you have an additional issue like worm gear on the tc motor so it's not disengaging so it's reverting to old school always on.

I replaced the tc motor 3 years ago. It isnt making the classic clicking noise and the dash isnt a christmas tree. But yeah its weird after pulling both fuses and disconnect the tc motor it still doesnt wanna move.