Most of your high end auto manufacturers don't recommend tire rotation. The reason for this is that each tire gets worn to the specific suspension tendencies of each corner of the car. Therefore when you rotate the tires the handling will be decreased until the tires are reworn down to the new corner. Most domestic autos you will not really notice since their build specifications aren't as precise and they don't really set up their camber being performance minded. But with your X they do car about performance.

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2011 X5 35i Space Gray/Black Nevada Leather w Dark Bamboo Trim
Convenience Pkg/Running Boards/Cold Weather Pkg/Comfort Access
3rd Row Seating/20% Tint/Style 215 wrapped with Toyo Proxes ST II/ LUX v4

2001 X5 4.4i TiAG/Grey Leather-Retired
djbock's Custom X Page!