Car suspension won't lower back to normal
 

My CLS550 has had bellow and strut issues , 3 times to be exact first time left rear exploded , then 3 weeks later came out and left rear on the ground again , latest time front right let go and each time car is too low to drive , NOW i'm driving down the road and front end vibrates for the first couple miles and then it's o.k. ,, I can pull up to a traffic light and hear the compressor running and car seems to be high in the front when parking, even when raising the vehicle it only goes up a 1 inch or so then down an inch, it seems as though the car doesn't return to it's low driving position anymore. I never drive the vehicle in the raised position , Has anyone ever heard of this many suspension issues with the CLS550 or is mine just a LEMON???