Front Suspension Control Arm problems of the 2006 Land Rover Range Rover Sport

Air suspension system is malfunctioning. Vehicle bounces erratically at all road surfaces. Erratic bouncing at highway speeds may cause driver to overseer and leading to a catastrophic (accident) event. The front end of the vehicle collapses while parked causing excessive strain on ball joints and front control arms (to date . . Nearly $2000 in repairs). Dealership has done all it can to repair the vehicle. The manufacturer is Land Rover. Land rover corporate has refused to assist owner or dealership in providing a technical solution to the problem. Only advice is of us to wait for a computer error code to display on the dash so the dealer can determine which part to replace. Safety issue. . This is unacceptable. (air shock, sensor, air shocks compressor, values). This problem has persisted for over a year and we have not gotten an error message. We request Land Rover replace computer module and sensors to air shocks, or replace air shocks.