Question about Mercedes-Benz 560-Series
Behind the rear firewall there should be several relays. one is an over voltage protection relay and is fused. there should be 2 black 16 pole(not all the poles are used)relays. 1 will say klima on it-that is your climate control relay. the other is your fuel pump relay-it may say kick down because the trans kick down solonoid receives it's power from that relay as well. circuit 30 is your hot all the time circuit and circuit 87 is your consumer(fuel pump). 31 is ground and 15 is hot with the key on. do not bridge anything else but circuit 30 and 87. use a fused bridge wire and see if the fuel pumps work. I hope I have been helpful
Posted on Jun 19, 2009
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Posted on Jan 02, 2017
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The relay and fuse for the fuel pump are located in the engine compartment
near the battery.
Fuse #9 20A* Powers Fuel Pump Relay
The relay is marked "Fuel Pump Relay" use the box lid to ID the relay position
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