known E70 issues
 

Here is a documents on known issues.

Maintenance, Recalls and Technical Service Bulletins

Thanks for that link. That is for the 2007 X5.

This link is for the 2008 E70 X5 4.8i

thanks for the lead... of interest for me ('08 3.0si):

Summary: (thought this was just a 4.8 issue)
BMW: DELAYED ENGAGEMENT AND HARSH JOLT WHEN ACCELERATING FROM A STOP. HARSH 1-2 UPSHIFT OR JOLT FELT DURNG THE 3-2 DOWNSHIFT OWN DECELERATION. MODEL E70 (X5 3.0I) ( NHTSA ITEM NUMBER - 10028105 ) tsb-24-04-08

Summary: (how do you know you need it?)
BMW: DYNAMIC DRIVE (ARS) FRONT SWAY BAR REPAIRS. E70 (X5) WITH SPORT PACKAGE OPTION CODE ZSP. ( NHTSA ITEM NUMBER - 10025775 ) SI B37-03-07

Summary: (could this be contributing to my creaking noises going over bumps/driveways or does that not involve CV joints?)
BMW: REPLACEMENT OF FRONT OUTER CV JOINT. COMPLAINTS OF CLICKING OR GRINDING NOISES COMING FROM THE FRONT AXLE AREA WHEN MAKING A TURN. THE FRONT OUTER CONSTANT VELOCITY JOINT BOOT IS SPLIT OPEN AND THE JOINT IS ALREADY DAMAGED. ( NHTSA ITEM NUMBER - 10031624 ) SI-B31-01-08