Land Rover Repair: 2000 HSE 4.6 Suspension Problem, airsprings, fault message

Question
QUESTION: My RR has very soft and wobbly suspension. At corners it heals very much being even unstable. In long and fast highway turns the outside level drops then it raise and drops (resonates). All airsprings are new and they do not have airleaks. I suspect valveblock leaks. The test computer do not show any fault at the garage but when the car is driven it become sloppy. What could be the problem and how I can fix it.
Thanks for your help.

ANSWER: I think this is more a problem with the shock absorbers (dampers).  leaks in the valve block will be slow-typically noticed overnight.  The quick changes in driving will be affected much more by the shocks.  Also the compressor will run to keep the springs at the right heigh, so if they loose a little air from leaks the compressor will make that up.  If the compressor can't overcome the leaks you will get a fault message on the dash.

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QUESTION: Thank you for answer. I need to add that I tried few kinds of shocks and now I have brand new standard shocks. But I have aftermarket air springs.Would they be the problem.

Answer
The aftermarket springs I know of (and sell) are to the exact specs of original.  the RR does have some body roll, but not as bad as you are describing.  Is this a new problem, or has yours always done this?

The sway-bar may be damaged/loose/missing, or the suspension mounts and bushings could be worn to the point the suspension arms move around, confusing the EAS.