Hi, I've just got hold of an Omega Saloon, but the rear suspension keeps boosting up, even when there's no load in there. I think it's causing a problem with the headlights as well (as there's a message for those on the dash - "Low Beam Fld/Vision"). A friend said that the problem may be a valve somewhere near the compressor, but I'm not sure. Could anyone give me some advice on what to look for, or what might remedy this? Cheers!