Clk55 w209 wiring Diagram

[Hydrochaos]

Looking for some help guy's. Could anyone help me with a wiring diagram for a CLK55 w209. I m having issues with the earth to the fuel pump relay but when I bridge it with the other earth on the relay it runs fine so I need a diagram to trace and fine the issue.

Thanks in advance

 

[markmifsud]

The Fuel Pump derives power from the rear Sam, N10/2 and it looks like the earth (W18) connection comes after the junction block X36/3 (Left and Right Fuel sensors also run through this junction back to N10/2)

Earth W18 features in a lot of other items such as the CD changer, heated seats and Drivers seat adjuster.