The noises have come back on my X3 and they have not disappeared. I'm taking my X3 into the dealership again to have it fixed.

I'll let my fellow X3ers know what happens after the fix!

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2004 BMW X3 2.5i
Black Sapphire Metallic
Premium & Cold Weather Packages
STEPTRONIC 5-Speed Automatic Transmission
Terracotta Leather Interior (HOT!!!)
Dark Wood Trim
17" Double Spoke Wheels (Style 111)
Scorpion Tires
Panorama Roof (HOT!!!)
Fog Lights