Earlier today everything was finewith my '83 SL. Got in car to come home from work. The water temp., oil pressure, fuel gauge, speedometer, and RPM gauge were all DEAD. Zip, nodda, nothing. The only 2 guages working were the "economy and the clock. At least with my '83 TD the speedometer and oil pressure are actually mechanical. A direct feed for oil pressure and a cable for the speed.
I know there is oil pressure because I looked under the oil fill cap and the cam oiler had oil running from it.
I need some ideas here.
Is there a fuse that controls all this? Actually I'll get a flashlight and check, but I need some ideas quick as my '83 TD is out of commission with a bad alt.
Also, my turns signals are dead as well. All lights on the car work.
HELP!!!

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1999 MB SL500 (110,000 mi)
2004 Volvo V70 2.5T (220,000 mi)
2014 Tesla Model S 85 (136,000 mi)
MBCA member