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.

S60,
If it is not cranking, fuel relay is not a problem. There is a neutral/park safety switch in the circuit. Try to start in neutral and see if it would crank. Also the security alarm relay K38 contacts are there in the circuit. Try to close and open doors with the remote, check fuse 3 and/or 4 in the fuse box under the hood. It maybe a bad starter or ignition switch as well.
Reg. Mike

Thanks for the ideas. I think you maybe right. Undfortunately, I bought the fuel relay and tried it out already. No luck. Will try tomorrow again. Thanks.