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Function of windshield washer pump - GF82.35-P-4101-01B

Function principle of windshield washer pump 

The motor of the windshield washer pump (M5/1)  is actuated by the signal acquisition and actuation module (SAM) (N10/1)  via the double windshield washer relay (K40/2k3)  . The polarity of the operating voltage for the motor and therefore the direction of rotation depends on the relay coil actuated.

The pump pumps water from the washing water reservoir to the windshield washer or rear window washer depending on the direction of rotation of the motor.

Fig 1: Identifying Function Of Windshield Washer Pump
G04636907Courtesy of MERCEDES-BENZ OF NORTH AMERICA.