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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 >> Electrochromic inside mirror, digital compass, garage door opener >> Control unit (JBE, FEM, or BDC, depending on the series)

Control unit (JBE, FEM, or BDC, depending on the series)

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The corresponding control unit receives the information from the inside mirror via the local interconnect network bus and makes the information available also to other control units via the K-CAN.

Fig 1: Identifying Inside Mirror Glass And Photosensor
G09908867Courtesy of BMW OF NORTH AMERICA, INC.

Sample graphic of inside mirror

Item Explanation
1 Inside mirror glass (electrochromic)
2 Photosensor for automatic-dim feature (electrochromic)
3 LED for the anti-theft alarm system (DWA)
4 Buttons for the garage door opener