geo 
2011 BMW X5 SUV xDrive35i 4dr SUV AWD (3.0L 6cyl Turbo 8A)
Transfer Case problem of the 2011 BMW X5
 My BMW X5 2011 mileage only 25000. I went to the dealer for driveshaft recall fix. Dealer told me that in my BMW transfer case leak oil and needs replacement seal soon. Cost is $600+, and I accepted. They also told me when they removed the seals to replace the seals they saw that the leak was coming from the transfer box control unit not just the seals. The root cause of the excessive leak is the control unit.  this repair would be $2134 and up. I am wounding is that  car is the biggest piece of garbage available at this time?