Actually it has 87000 on it now, but I still think it is early as well. The shifting jerkyness has been getting worse over that last week or so. The first signs was the whining noise and this has become slightly worse, the last diagnosis was from the Dealer and he said the whining is 'probably' transmission related. We have already replaced the power steering pump pulley as the bearings where shot...no change in the whine.
The latest development was on the way to work yesterday the shifting was the worse it has been and then this.... TRANS. FAILSAFE PROG .came over the cluster. The transmission really seemed to slip and the X5 did not accelerate much at all. Luckily I was at a parking lot, so I pulled in and the X sat there. We are going back today to try to bring it home. From what I read in the manual, after receiving that warning/message it is still driveable but will have 'limited performance.