My '95 S320 won't start

It will not start or crank. I checked the battery and fuel pressure regulator. My question is where is the fuel relay and OVP if this model has one. Also, I looked behind in the trunk and found a 50Amp and 30 amp (silver relay). I don't think either is the fuel relay. There is no sound except one click from the engine compartment. Looked for the relays there but found nada. Help me out if you can. I am still trying to figure out the W 140 without a repair manual.