Good Morning, I solved the problem...
I keep getting error messages when I try and search this site.
I remember seeing a post about how to do this. I had to do a Google search that aimed me back to the X5 Outpost thread I was looking for...

I put my 3 ton long reach floor jack under the rear differential with a 2x6 and slowly lowered the car on it's wheels. Articulating the level sensors activated the air pump and reinflated the rear air suspension.

I now have a well behaved X5 with no unauthorized lane changes anticipated. At 185K miles I'm sure it was past due for the refresh. Now on to rear brakes...

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2001 x5 3.0 (sold with broken motor), 1990 e30 M3, 1991 318is, 2002 325i, 2008 335i Dinan stage 3 6 speed,