I would like to list the problems that I have encountered with my X5 in the past month. After reading these problems, I would welcome any input that you may have.
I have a 2002 X5 4.6is automatic with 59K miles.

1. Front left drive axle failed. BMW dealer recommended replacing both axles due to the fact that when one fails, the other may follow soon. Both axles replaced.
2. While dealer had my X5 to repair the axles, they found a small oil leak on the head gasket (left side of the engine). They replaced gaskets on both sides of engine.
3. Dealer then performed 60,000 mile inspection. They flushed the radiator and brake system.
4. During the test drive to determine of there were any problems after the inspection and engine work, the starter failed. Replaced starter.
5. Picked up the truck on Friday afternoon from dealership. Drove it approximately 200 miles the next day.
6. After approximately 200 mile drive listed above, the transmission failed. X5 was in drive, going approximately 50 MPH. Engine revved to about 6000 RPM, transmission message came on and truck had no forward power. Coasted to the side of the road and called tow truck.
7. The X5 is currently at the BMW dealer. I am waiting on their diagnosis.
8. There were no known failures of the starter or tranny before it went to the dealer.

Questions...Is there a known failure when the dealer adds the wrong ATF fluid to the tranny?
Not sure if the dealer drained the tranny fluid when they changed the front axles. Is this required?
Do any of you know if these problems might still be covered under warranty?

Thanks for the help.