Arwyn's advice is spot on. Our 1990 Plus 4 spotlights were wired through a dash switch and if needing to extinguish them for on coming traffic you had to switch them off via the switch. Not ideal. So I fitted a relay to switch off the spots on dip beam.
However on one MOT test the tester informed me that they were not working and I soon realized that he had the car running with the main beam on dip. Problem solved.
Probably one of the better things on the safety side I have done.
Another thing we had go wrong was years ago when driving out one day a noise was heard from the front of the car. On stopping I found one of the spot lights had just dropped out of the alloy wing leaving a perfectly round hole .Luckily the bumper bar held the light from dropping onto the road. Vibration had slowly weakened the alloy. The cure was to make up some stainless brackets and remount them via the bumper brackets. On checking the remaining spotlight it too was near to dropping out. The cure for the holes was to fill in the holes and then use a couple of Normog round metal badges (a perfect fit) araldited to attach them to cover the repaired holes. I have been told steel bodied cars are not effected.
