I was wondering whether or not the setting has been changed to "Spring"? what sort of warning lights would if be getting if it's not been changed? Reason i ask is because i'm hearing "Air" noises under the car, is that normal? I'm not getting any warning lights at the moment. Confuzzled...

Hello all :) I am now the proud owner of a Discovery 2 V8 and could do with a bit of advice please. The previous owner converted the rear end to coil springs and i want to change them back to Air Springs. Everything associated with the air system seems to be intact so i thought a could just...