The windscreen wiper drive is located under the windshield in a waterproof fairing assembly.
The speed of the windshield wiper and washer is controlled by the central switching unit depending on the speed of the vehicle. If the vehicle is stationary, the windshield wiper travel speed is reduced. With an increase in the speed of movement, the stroke of the brushes accelerates.
The glass cleaner performs only one stroke if the switch is only lightly pressed. If pressed longer, the cleaner performs three strokes.
With an increase in speed, the pressure of the air flow on the brush holder levers also increases. If the glass cleaner is currently switched on to the second stage operation mode, the electronics automatically switches it to the first stage so that the brushes clean the glass better.
In the event of a mechanical blockage of the wiper stroke, for example, due to freezing of the brushes, the system cuts off the power supply to the drive motor in order to prevent its burnout.
The rear window wiper automatically turns on when reverse gear is engaged, even if the front window wiper is off.