i have a 2004 e500 mercedes benz and i replaced the rear suspension air bags?

What is your question?

You can hear the air compressor working but it is not lifting up.

What makes this problem better or worse?

because the car is so low that when you go over something that is bump.

How long has your 2004 Mercedes-Benz E500 had this problem?

since a year ago when i was told that i might have a hole in my suspension air bag.