I am also wondering when you purchased the X. Some of the problems you mentioned are inherent in BMW's. Did you do a PPI before you purchased? If so, some of these problems are very obvious upon visual inspection. I test drove an ML at a Lexus event and the SUV was literally falling apart when driven hard. Trim pieces were falling off, rattles, and a flat tire were reasons they removed the ML from the drive choices. There are others with X's in your year who have very few problems. Maintenance and service history are extremely important when purchasing a used BMW of any model. Hope you can get things sorted out.

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'03 Carbon Black M5
'04 Silver X5 4.4
'04 MB SL500