Has anyone come accross a fault in the air suspension "Ride height Mode - Invalid" Everything appears to be working Ok the rear suspension sets to right height but the front goes to maximum height and the control switch on the dash wont do anything it just flashes at the level you try to set but doesn't actually do anything. If you drive for a distance like this you get a message "Offroad Mode 30 mph" and a short while later the suspension is inactive. I have tried re-callibrating the suspension but it makes no difference.