Head-Up Display

Head-Up Display
Model: E63/64
Production: Start of Production MY 2004

System Desciption Topics


^ List the advantages of the HUD
^ Name the components of the HUD
^ Explain HUD operation
^ Perform HUD self test
^ Align HUD with special tools

Head-Up Display





The HUD projects a virtual image into the drivers field of vision.
Depending on the equipment installed in the vehicle, this virtual image contains information that is of relevance to the driver. such as e.a.:
^ Cruise control FGR
^ Active Cruise Control ACC
^ Navigation
^ Check Control messages
^ Road speed
The size of the virtual image is approximately 200 mm x 100 mm.

Advantages of the Head-Up Display
The virtual image in the driver's field of vision allows the driver to concentrate more on the road ahead than previously. Driving is thus rendered less fatiguing. The driver switches his vision between e.g. the instrument cluster and road traffic less frequently.
Components
The HUD is made up of the following components:
^ Cover glass
^ Mirror
^ LED power supply
^ LED array
^ Light well
^ TFT projection display
^ Shutter
^ Main board
^ Secondary board
^ Housing
Additionally required components:
^ Windscreen
^ Light Module
^ Rain/light sensor
^ Safety and information module


Control Elements
^ HUDs control buttons and light switch
^ Instrument lighting dimmer
^ Controller

Image Sources
The following control units supply the necessary signals for the displays:
^ Active cruise control ACC
^ Car Communication Computer CCC
^ Instrument cluster KOMBI
^ Steering column switch cluster SZL
^ Digital motor electronics DME