The P.O. or his "trusted mechanic" has simply removed the relevant bulbs from the line of warning lights at the base of the instrument panel ! One easy step and Hey Presto - now no more problem! Needless to say, I shall be working my way through both faults till we sort it out, reinstate the lights and ensure they go out for the right reasons, rather than having been nobbled. Always instills confidence that the rest of the car has been treated to a "no expense spared" experience - NOT.