mounted 20's and auto adjustable suspension messed?
 

I recently mounted 20" wheels on my 04 4.4 which was lowered with h&r kit, on 19" wheels previously.

The message thingy on the dash is now reading "auto adjustable suspension not active"
(smthing like that)

do I need it reset smthing?

Try disconnect battery for half and hour and it should reset it. BMW x5 are picky cars and always get somethign messed up. If disconnecting battery won't help,go to the delaer it probably one of the air suspension sensors went out.

will try, thank you!