Gauges don't work.
 

I have a 1990 300SEL and yesterday my gauges stopped working. This includes the odometer, speedometer, tach, oil, temperature, and gas gauge. Is this caused by a bad relay or a fuse? One relay 201 821 00 47 is vibrating and humming, which I don't think is right. What caused my gauges to stop working? Help.

Problem fixed. It was the fuse. I had check all the fuses visually, but you have to take each one out. The top of number 6 was corroded. The problem would not have been found without taking out each fuse. The humming, vibrating relay box was misleading, but not the problem.

lectricity ain't getting thereany mo
 

see above