Rear suspension drop!

So today I noticed that the rear suspension on my x5 is dropped. I turned the car on and it came back to its normal height. This is the first time I am experiencing something like this. Idrive screen doesn't show any massages. Does anyone know what could cause this to happen? Any of you had this kind of problem?
Thanks.

Your airbags in the rear suspension are leaking. You should replace them soon, or the compressor will eventually burn out trying to keep them inflated

Just replace the airbags? Is this a common problem?

It seems its becoming more common as these cars get older.

Give these guys a call and see if they have plans to make something for the E70 X5. I have used them on other cars with air suspension and am generally happy. They also provide a lifetime warranty.

https://www.arnottindustries.com/part_BMW_yid21.html