my uncle and aunt are about to buy a vreg asrag g 1.4 im assuming it will be 8v dont know much else about it, all i know is the oil light is on constantly, whats the likley cause and whats the way to fix. could it be as simple as a a sensor, if so which one? oil pump? engine management? any help would be good, they not bought the car yet but obviously if its likley to be a serious fault and costly then they will need to be advised against it.
thanks in advance