I see 2 water pumps for an 08 X5 3.0. One with and one w/o 4 zone control. I assume 4 zone control means vehicles with rear climate? Maybe some one else can confirm this? On the BMW of Morristown Trademotion site.......Search by category, select your vehicle, select trim level, click "cooling system" on the left side of your screen from the list provided, scroll down to the 4th isometric picture on the left side of your screen which is the water pump. You now have the 2 water pumps in front of you. One with and one w/o 4 zone control. If you need to know part #'s utilize realoem.

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Current BMW's:
2013 E70 X5 xDrive35i Premium (mine)
2014 F25 X3 xDrive28i (hers)
Past BMW's:
2001 E46 325i
2001 E46 330ci
2003 E39 525i
2006 E53 X5 3.0i
2008 E70 X5 3.0i
2014 E84 X1