I replaced my air cells with new ones. BUT did not help. My mechanic put the new cells in and kept my car for over 3 weeks trying to figure out why my ADS lights still come on. Very mysterious system. Anyway, my ADS light still comes on and ride is as stiff as an old VW Jetta in China. Very bad. Thinking about selling my car (CL 600) over this one issue. I refuse to take this to the dealer and get a $7k bill for all new parts. My light only comes on in hot weather (over 80 F) and when soeone sits in the back or I hit a bump or when ir feels like it when I start the car.

Thinking about replacing the leveling sensor and see if that's the culprit. Too bad this is such a finicky system on such a beautifule car. My next car will be much simpler (Toyota). I'm not rich enough to pay for these over engineered problems.