Hello Paul, thanks for trying to help and your suggestion. these are the things i have tried so far: I have disconnected mechanical link from the rear height adjuster/sensor and tried to move sensor lever to diffrent position and no joy, rear suspension still down. I have also disconected the plastic return pipe from the driver side rear strut, just in case the strut seals have gone and it will return lds fluid back but nothing is leaking back. I tried to lift car level up via the switch, and you can hear fluid is going to the back of the centre sphere but car does not go up. I have used snap on machine, and it gives me the option to lift level up of the car/ lift first only front end and then rear end via the special function, front end of the car rises, but when i try to lift back end you can hear motor running but car not going up? Thanks