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Home >> Mercedes Benz >> 2011 >> CL65 >> Repair and Diagnosis >> Engine Mechanical >> Lubrication System >> Lubrication, Oil Cooling -- 216.379 Cl65 AMG >> Basic Knowledge >> Oil sensor, location/task/design/function - GF18.40-P-4111MB

Oil sensor, location/task/design/function - GF18.40-P-4111MB

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 Oil Sensor Capacitive Measuring Range
G07513629Courtesy of MERCEDES-BENZ USA
Oil sensor position   GF18.40-P-4111-01M 
Oil sensor task Detect oil level, oil temperature and oil quality.  
Oil sensor design The oil sensor consists of:
  • Electronics with 3-pin connector
  • Capacitive measuring element (capacitors)
  • Temperature sensor.
 
Oil sensor function Oil level and oil quality are detected on the basis of the capacitance of the engine oil (dielectric). The oil temperature is detected by the temperature sensor. All the signals are processed in the electronics to form a PWM signal. GF18.40-P-4111-02M