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Wiper Motor

The wiper system is a twin-arm synchronous system with reciprocating action (four-bar linkage). The motor is a rotary motor without an electronic module and is controlled by KBM via a double relay.

The wiper motor's end position (off position) is detected by a reset contact integrated in the wiper motor. The crank is permanently connected to the wiper motor.

Fig 1: Identifying Wiper Motor
G03391079Courtesy of BMW OF NORTH AMERICA, INC.