Hey guys I've been on the road for a while and yesterday before sunset I turned on my headlights and as the sun set my dash and radio,ac,and window switches were dark.
I tried adjusting the dimmer but nothing happened also I turned head lights on/ off several times but still dark.

The gauges worked fine the radio works, fan, windows all fine just not light up.
What do you think? I checked all my fuses and they are fine ( new I just replaced)

I'm I looking at headlamp switch , dimmer Or ?

Thanks
greater 2b

Had the same problem on my 90 sdl. the plug which goes into the inst. cluster had a bad connection. pull the cluster, turn lights on and try wiggling the wires and see if the instrument lights come on. could be a bad dimmer switch but in my case just a bad connection. the car sat for a while and damp weather caused several connection problems.

Might also be a tracing on the instrument panel...if you take the panel off you can usually see a broken/burned trace.

Guess you could always tape a flashlight pointing toward the dash...akin to turning up the radio when you hear an engine noise :-)

__________________
1985 300D 172,110mi and goin' strong

After few cups of coffee,went back out and pulled the cluster and all was OK.
Then went back through and found one of my new fuses had a loose top, replaced it and now we have light.

I really am concerned about these fuses this is the second time I have had issues with these, bought them from NAPA.
Greazer2b

You can buy copper fuses here which are better than aluminum found out in the world. That said, always test with a meter before moving to other possibilities.

__________________
85SD 240K & stopped counting painted, putting bac together. 84SD 180,000. sold to a neighbor and member here but I forget his handle. The 84 is much improved from when I had it. 85TD beginning to repair to DD status. Lots of stuff to do.