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Home >> Mercedes Benz >> 2000 >> S430 >> Repair and Diagnosis (Single Page) >> Engine Mechanical >> Fuel System >> Fuel System - 215 & 220 Chassis >> Basic Knowledge >> Fuel pump control unit, location/task/design/function - GF47.20-P-4009 >> Fuel pump control unit, location/task/design/function - GF47.20-P-4009MA >> Notes

Fuel pump control unit, location/task/design/function - GF47.20-P-4009MA: Notes

ENGINE 275.980 in MODEL 215, 220 

ENGINE 275.981 in MODEL 230 

Shown on model 215, 220 

Fig 1: Identifying Fuel Pump Control Unit Components Location (Model 215, 220)
G04853142
  Fuel pump control unit, location On the frame floor next to the fuel pump.  
  Fuel pump control unit, task Actuates the fuel pump (M3) which is dependent on the fuel pressure sensor signal (B4/7) with a PWM signal.
At high engine load actuates the intank fuel pump relay.
 
  Fuel pump control unit, design The control unit consists of the control and power electronics housed in a metal casing, and a wiring harness which runs to the fuel pressure sensor (B4/7), to the fuel pump (M3) and to the relay.  
  Fuel pump control unit, function   GF47.20-P-4009-02MA