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Home >> BMW >> 2013 >> Alpina B7L >> Repair and Diagnosis >> Body & Frame >> Windows >> General Vehicle Electronics -- Overview >> Exterior Lighting >> Light Functions >> Adaptive Headlight >> Bi-xenon Control Unit >> Swivel module for bi-xenon headlight
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Swivel module for bi-xenon headlight

Among other things, the swivel module contains following components:

The bi-xenon light bulb is integrated in the swivel section of the adaptive headlight. The zero position Hall sensor registers the zero position of the swivel module.

The stepper motor provides the swivel movement of the swivel module. A separate stepper motor is installed for the headlight vertical aim control.

The headlight driver module controls and monitors the movement of the stepper motors for the adaptive headlights and the vertical aim control system.