Originally Posted by Skyline

I have not done this on the X5, only on other cars, so can not confirm this will work, but I would think a "Bolt Grip Puller Set" would do the trick.

Like this:

https://store.snapon.com/Bolt-Grip-P...--P635337.aspx

The thing that looks like a giant bird foot gets mounted with the wheel bolts to the hub. Then you thread the rod/bolt through the center to push out the axle. The set comes with several style tips to match what you want to push on; pointed and flat.

Although Snap-on makes by far the best quality version of these, you could get one used on eBay, or get an OTC set quite a bit cheaper.