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Home >> BMW >> 2018 >> X3 M40i >> Repair and Diagnosis >> External Pages >> Different car >> Section 763 (Functional Descriptions - F25 - Charging System, Anti-Theft, Body Electrical Systems) >> Body Electrical System - Functional Description >> Exterior mirrors >> Driver's door switch block

Driver's door switch block

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The electrical exterior mirrors are adjusted using the switch block in the driver's door. With the equipment specification "Low", the mirror adjustment switch controls the electric exterior mirror motors directly. With the equipment specification "High", the operating signals are transmitted via LIN bus to the front electronic module (FEM) and the electric exterior mirrors.

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