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Rain/light sensor location/task/function - GF54.21-P-4123R: Notes

MODEL 230 as of 1.6.04 

Fig 1: Identifying Rain/Light Sensor Location
G05075921Courtesy of MERCEDES-BENZ USA
  Rain/light sensor location The rain/light sensor (B38/2) is located on the inside of the windshield, below the overhead control panel control unit.  
  Rain/light sensor task The rain/light sensor (B38/2) records the degree of wetting of the windshield and the intensity of the surrounding light.  
  Rain sensor/light sensor, function   GF54.21-P-4123-04R