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1986 Mercedes-Benz 560 Series 560SEL Sedan Base

1986 Mercedes-Benz 560 Series 560SEL Sedan
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February 18, 2013, 4:27 pm

JOHNNYT B
 

Question: Where is the Fuel Tank located and how do you replace the fuel pump?

I need to replace the fuel pump on this vehicle.


March 25, 2013, 9:23 pm

Tyler O
Expert Mechanic


Remove the fuel tank filler cap. (Depressurizes the fuel tank)
Disconnect the NEG. battery terminal and insulate.
Remove the fuel pump assembly cover.
With an appropriate clamping tool pinch off the fuel suction and delivery hoses.

WARNING: When disconnecting fuel delivery lines high pressure fuel may be released.

Remove the fuel pump connecting line between the pump M3/1 and M3/2.
Loosen the fuel pump mounting bracket screws and push fuel pump M3/1 to the left.
Remove the check valve.
Using new sealing rings reinstall the check. Torque to approx. 16 ft. lbs. (22 Nm).
Refit pump assembly in reverse manner.

CAUTION: Always use new sealing rings when reconnecting metal fuel lines.

Run the engine and check for fuel leaks.


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