BMW 7 Series: Introduction
The very name "Head-Up" describes the principle benefit of this system. The Head-up Display (HUD) projects a virtual image into the driver's field of vision. Important information such as cruise control details or graphical directions from the navigation system are projected onto the windshield and are thus permanently visible within the driver's field of view.
The driver of a BMW thus has the important data and graphics put up in his field of view, just like a pilot in his jet fighter.
The head-up display in the new BMW 7 Series incorporates various functions aimed at enhancing road safety and driver convenience.
That includes display of:
- Information from the DCC cruise control system
- Information from the navigation system
- Check Control messages
- Road speed
Having the displays in the driver's direct field of view increases safety, as the eyes are always on the traffic.
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Fig. 31: Display Head-Up (HUD) On F01/F02
SYSTEM OVERVIEW
Head-up Display System Schematic Circuit Diagram
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Fig. 32: Schematic Head-Up Display System Circuit Diagram
HEAD-UP DISPLAY SYSTEM LEGENDS
- Central Gateway Module (ZGM)
- Head-up display (HUD)
- Central Information Display (CID)
- Junction box (JB)
- Front power distribution box
- Controller
- Car Information Computer (CIC)
- Instrument cluster (KOMBI)
- Driver assistance system control panel (BAFAS)
- Footwell module (FRM)
K-CAN - Body controller area network
LIN-Bus - Local Interconnect Network bus
HUD CONTROL UNIT K-ACN SIGNALS REFERENCE CHART
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System Functions
The Principle
The HUD can be compared to a projection device. A light source is required to
project the HUD information.
The two LED arrays (red and green) serve as the light source. The image conte
System Component
The head-up display is fitted above the steering column, immediately behind
the instrument cluster. It is
fastened to the bulkhead supporting structure by three hexagon-head bolts.
Fig. 38: Identify
Service Information
The following information for the technician is described in this section:
Adjusting the brightness
Adjusting the height of the horizon on the HUD
Vertical rotation of the image
Test functions
R
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Operating via the Controller
Opening the main menu
Press the button.
The main menu is displayed.
Selecting a menu
Selecting menu items
Turn the Controller until the desired menu
item is highlighted.
Press the Controller.
Select a widget
Move the Controller in the main menu to the
right.
Turn the Controller unti
