Dash lights not working anymore
Just recently, the dash lights in my '91 318is stopped working. When I pull the switch the exterior lights work fine but the dash doesn't illuminate. I've turned the knob but it's not a dim illumination thing. I've checked/moved all the 7.5A fuses to new positions with no effect.
The lights not working: main instrument cluster, heating controls, clock, rear demist button. The actual instruments, heater, clock, rear demist themselves work fine.
Any help gratefully received.
[Here in the UK we have speed cameras pretty much everywhere. So not being able to see the speedo is a real problem when driving at night.)