[treadmil]

I have no power to my front wheels and have the 3 warning lights on (abs, 4x4 and brake). I stopped at a light a few days ago, car made a loud grinding noise and wouldn't go forward. I put in reverse and backed up some, and then into drive and I was able to forward and drove 400 mi. home. We put car on rack, started motor and put in gear but front tires didn't move-just the back ones. It's a 2008 328 xi bmw. Any ideas ??

[Foghorn]

Sounds like the clutch actuator motor in the transfer case.
Lots of info to be had on that subject in these forums.

[treadmil]

That's kinda what I thought, but my mechanic thought that wouldn't stop power going to the front wheels. I can't find any info on that problem anywhere. I appreciate you response and if you have any info on that it would be greatly appreciated.