1980 MERCEDES BENZ 300SD WHERE IS THE FUEL PUMP LOCATED

  • Tiny
  • islgu158
  • 1980 Mercedes Benz 300sd

Engine Mechanical problem
1980 Mercedes Benz 300sd 6 cyl Two Wheel Drive Automatic 280000 miles

Where physically on the vehicle is the fuel pump, have an old girl whos firing but wont drink have used the plunger. Limited mechanical knowledge but can usually at least find source of problem

Sunday, October 24th, 2010 AT 2:09 PM

1 Answer

  • Tiny
  • bluelightnin6
  • Expert
  • 17,063 posts

Hello and thanks for donating

Do not confuse the electric fuel pump with the injection pump.

All Mercedes-Benz fuel injected engines are equipped with electric fuel pumps. The electric fuel pump is located underneath the rear floor panel. The fuel return line was also eliminated and a check ball installed in its place.

Two types of fuel pumps have been used. One, the large pump, has been replaced with a new small design which has a bypass system to prevent vapor lock.

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Sunday, October 24th, 2010 AT 6:12 PM

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