gf4720p2000mff

Component description for fuel pump

Type gf · topic 47.20 · version 0100 · 2008-04-10

Applies to: ENGINE 271.946 in MODEL 203.746 as of Model Year 09 / AEJ 08 model refinement package ENGINE 271.957 in MODEL 203.741 as of Model Year 09 / AEJ 08 model refinement package

Where it sits

Function group 1 Engine › 47 Fuel system, powertrain energy supply › 47.20 Fuel pump, filter — Series 203 (models 741, 746)

Also applies to engines/gearboxes: 271 946, 271 957

GF47.20-P-2000MFF

Component description for fuel pump

22.2.08

ENGINE 271.946 in MODEL 203.746 as of Model Year 09 / AEJ 08 model refinement package

ENGINE 271.957 in MODEL 203.741 as of Model Year 09 / AEJ 08 model refinement package

Component description for fuel pump

P47.20-2366-11

Front view of fuel tank

55 Fuel delivery module

M3 Fuel pump

Location

The fuel pump is integrated in the fuel feed module, which is located at the bottom of the RH fuel tank chamber.

Task

The fuel pump supplies fuel to the fuel injection system (fuel distribution rail) in sufficient quantity and at the required pressure.

Design

The fuel pump is a two-stage flow pump with a maximum delivery rate of 130 liters/hour at 3.8 bar.

A fuel strainer (fuel prefilter) is installed under the fuel pump in the feed line.

Function

The fuel pump is actuated by the ME-SFI control unit (N3/10) through the fuel pump relay (N10/2kA).

The fuel pump draws fuel from the bottom of the fuel feed module through a fuel strainer. It then pumps the fuel through the fuel filter and fuel pressure regulator to the fuel distribution rail.
The fuel pressure is limited to about 3.8 bar by the fuel pressure regulator.

Component description for fuel pump

P47.20-2368-11

View of trunk left side

N10/2 Rear SAM control unit with fuse and relay module

N10/2kA Fuel pump relay