Can anyone recommend a bottle jack for the X5?
 

Would this one work?

4 Ton Hydraulic Bottle Jack

It says minimum height 7.5 inches, just go measure the height at the jack pads to see if it will fit under there.

With a max height of only 15-1/8", I don't think you'll get the wheels off the ground if your using it at the jack pads. I know this first hand, and I now have a bottle jack sitting on my garage floor getting very little use.

You can try searching, but I think the consensus is that you need about 18"+ max height to get the wheels off the ground. It's harder than you think to find jacks that extend high enough for the X5. I couldn't find one tall enough at walmart, autozone, etc...

Harbor Freight has a nice heavy duty 3 ton floor jack (on sale right now) for $59, and it goes to 20". I just bought one, and it is awesome. Shipping was only 10 bucks, which is cheap considering it weighs nearly 100 lbs.