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Charge pressure control vacuum transducer, location/task/design/function - GF07.17-P-3160M

ENGINE 275.950 in MODEL 215, 220 

ENGINE 275.951 in MODEL 230 

ENGINE 275.953 in MODEL 216, 221 

ENGINE 275.954 in MODEL 230 

ENGINE 275.980 in MODEL 215, 220 

ENGINE 275.981 in MODEL 230 

ENGINE 275.982 in MODEL 216, 221 

ENGINE 285.950 in MODEL 240 

ENGINE 285.980 in MODEL 240 

Fig 1: Identifying Charge Pressure Control Vacuum Transducer Function Diagram
G04839839Courtesy of MERCEDES-BENZ USA
  Charge pressure control vacuum transducer position Mounted at rear on cylinder head of left cylinder bank  
  Charge pressure control vacuum transducer task To generate modulated charge pressure for the pressure diaphragm units to obtain charge air pressure regulation independently of the PWM signal from the engine control unit.  
  Boost pressure control pressure transducer design Plastic housing with coil for the battery voltage, resistance approx. 23 Ω, actuation by means of the PWM signal, frequency approx. 30 Hz  
  Charge pressure control vacuum transducer function One of the valve plates actuated by the coil anchor increases the opening time to the atmosphere for an increasing duty cycle. This means that only part of the charge pressure acts from connection 1 on the pressure diaphragm units.