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Pressure sensor upstream throttle valve actuator, location/task/function - GF07.04-P-5048M

ENGINE 275.953 in MODEL 216, 221 up to Model Year 8 

ENGINE 275.982 in MODEL 216, 221 up to Model Year 8 

Fig 1: Identifying Pressure Sensor Upstream Of Throttle Valve Actuator
G07510292Courtesy of MERCEDES-BENZ USA
Pressure sensor upstream of throttle valve actuator arrangement on the throttle valve actuator. fed with charge air over a hose line.  
Pressure sensor upstream of throttle valve actuator task Detect the boost pressure for the boost pressure control, so that the pressure ratio downstream/upstream of the compressor (B28/6 to B28/5) can be calculated for the boost pressure control.  
Pressure sensor upstream of throttle valve actuator function   GF07.04-P-5048-01M