Fuel tank pressure sensor, location/task/function - GF47.30-P-4032M

MODEL 215, 220 with ENGINE 275.950 with CODE (494) USA version

MODEL 230 with ENGINE 275.951

with CODE (494) USA version up to Model Year 8

MODEL 216, 221 with ENGINE 275.953

with CODE (494) USA version up to Model Year 8

MODEL 230 with ENGINE 275.954

with CODE (494) USA version up to Model Year 8

MODEL 215, 220 with ENGINE 275.980

with CODE (494) USA version

MODEL 230 with ENGINE 275.981

with CODE (494) USA version up to Model Year 8

MODEL 216, 221 with ENGINE 275.982

with CODE (494) USA version up to Model Year 8

MODEL 240 with ENGINE 285.950 with CODE (494) USA version

MODEL 240 with ENGINE 285.980 with CODE (494) USA version

Shows model 220

Fig 1: Identifying Fuel Level Sensor And Fuel Tank Pressure Sensor

Courtesy of MERCEDES-BENZ USA

Fuel tank pressure sensor position	Model 215, 220, 230, 240: The tank pressure sensor is located at the top of the fuel level indicator sensor. Model 216, 221: The tank pressure sensor is located at the fuel filler neck. Model 240	GF47.30-P-4032-01M
Fuel tank pressure sensor task	Detecting the internal pressure of the fuel tank for leak test of the regeneration system.
Fuel tank pressure sensor function	The voltage supply of 5 V is performed by the ME control unit. The output signal is dependent on internal pressure of the tank: -50 mbar approx. 0.5 V. 0 mbar approx. 3V.