Following on....
I've just been tinkering on the car and I thought I would check my OSR fog light.
Turns out my NS is working but the OS has no bulb in the cluster...!!
As far as I can see I have a wire with a spade connector somewhere floating above the hole, and there are the metal spring tabs fitted on the cluster.
Mine is 1998 so I'm lead to believe that only the OS should be working, but the car did pass an MOT like this.
I guess I should swap the bulbs over to meet with the law
