What cause the warning "Stop Car to Low" and how can I minimize cost of repair

I have had same issue both front and rear on my 2004 E500 4matic seems to be a serious problem with this car I actually thought I hit something in road car dropped all the way insurance took care of it first time can be a very expensive repair issue

How did you get insurance to pay for the repair

I had the same issues with my 2005 E500. I found out that my relay had come lose causing the vehicle to sit low and not rise. once I took it out and put it back in, my car immediatley came up. The pumps were working and it has worked fine every since.