suspension is high, just fixed and car floor is 24' off ground

What is your question?

Merc 450 GL , just fixed for the 6th time, (malfuction light on)new sensor put in, the suspension has never been right , rides HIGH or crooked Extremely lopsided or high only in back. it is now even higher but finally level, the floor of the car is 21" above the ground now. the floor not sill. I can barely get in. I have a second exact same car (not registered yet) it rides 8" lower at least. It is not easy to get into the car. merc just keep teling me it is fixed. .

What makes this problem better or worse?

having it fixed at the dealer

How long has your 2007 Mercedes-Benz GL450 had this problem?

7 yrs