ME-SFI fuel pump actuation, function - GF07.61-P-3012AM

ENGINE 113.990 in MODEL 211, 219

ENGINE 113.991 in MODEL 215, 220

ENGINE 113.992 in MODEL 230 up to Model Year 2008

ENGINE 113.993 in MODEL 463 up to 31.5.12

ENGINE 113.995 in MODEL 230 up to Model Year 2008

Model 211, 219

Fig 1: Identifying ME-SFI Fuel Pump Actuation Function Diagram

Courtesy of MERCEDES-BENZ USA

The fuel pump(s) is (are) actuated:

During ignition ON: The fuel pump is actuated for about 2 seconds (can be heard partially) as a full running protection.
During start operation by means of the first signals supplied by the crankshaft position sensor.
When engine running by means of "TNA" engine speed signal.

Fuel pump actuation (model 211, 219)

Both fuel pumps are actuated simultaneously via the fuel pump relay.

The fuel pump relay is actuated through a ground signal from the ME control unit. When the relay contact is closed, the fuel pumps with fuel level sensor are connected to circuit 30 (B+) via circuit 87.

Model 215, 220, 230, 463

Fig 2: Identifying ME-SFI Fuel Pump Actuation Function Diagram

Courtesy of MERCEDES-BENZ USA

Fuel pump actuation (model 215, 220, 230, 463)

The fuel pump is actuated by the fuel pump control unit via the fuel pump relay.

The fuel pump relay is actuated through a ground signal from the ME control unit. If the power contact of the relay is closed, the fuel pump control unit is connected via terminal 87 with terminal 30 (B+) and undertakes control of the fuel pump.

Intank fuel pump actuation (model 215, 220, 230, 463)

The intank fuel pump is actuated via the intank fuel pump relay. The intank fuel pump relay is actuated by the ME-SFI [ME] control unit through a ground signal depending on the engine speed and load (high engine speed, full load). If the power contact of the relay is closed, the intank fuel pump control unit is connected via terminal 87 with terminal 30 (B+).

In case of model 230 to 06/2002, the intank fuel pump is not actuated by the ME-SFI [ME] control unit directly, but via the intank fuel pump control unit (N118/1) depending on the engine speed.

Fuel injection valve, location/task/design/function		GF07.03-P-5004KE
Crankshaft position sensor, location/task/design/function		GF07.04-P-4116AM
ME-SFI control unit, location/task/design/function		GF07.61-P-5000AM
Fuel tank, location/design/function	Model 211, 219	GF47.10-P-3000TK
	Model 215, 220	GF47.10-P-3000KM
	Model 230	GF47.10-P-3000RM
	Model 463	GF47.10-P-3000GM
Intank fuel pump, location/task/design/function	Model 215, 220, 230, 463	GF47.20-P-4001HA
Fuel pump, location/task/design/function		GF47.20-P-4003AM
Fuel pressure sensor, location/task/design/function	Model 215, 220, 230, 463	GF47.20-P-4007HA
Fuel pump control unit, location/task/design/function	Model 215, 220, 230, 463	GF47.20-P-4009HA
Intank fuel pump control unit, location/task/design/function	Model 230 up to 06/2002	GF47.20-P-4010HA
Intank fuel pump relay, location/task/design/function	Model 215, 220, 230, 463	GF47.20-P-4011AM
Fuel pump relay, location/task/design/function		GF54.15-P-4105AM