5 Series E60 525d (M57TU) SAL
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Automatic adaptation of display brightness
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Prioritisation of displays
Switch-on response
The head-up display is partially operational when terminal R is switched ON. This means:
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The projection display is initialised but information is not yet displayed.
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The head-up display is able to communicate with other bus-elements via the MOST and K-CAN data
buses.
The head-up display is operational when terminal 15 is switched ON. This means:
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The light source is switched on when the button for switching the head-up display on and off is pressed.
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The projection display cover panel is folded out of the beam by the stepper motor.
> E70
The E70 has no cover panel for the projection display. One mirror is swivelled away to protect the display
against direct sunlight when parked. As from terminal 15 ON the mirror is swivelled from the park position
into the position stored by the Car and Key Memory.
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The automatic adaptation of the display brightness is activated.
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> E70
The image orientation of the virtual image can be height-adjusted.
Projection of virtual image in front of the vehicle
The head-up display projects a virtual image, i.e. an image that appears to hang in mid-air without a fixed
image carrier (e.g. projection screen or similar).
The image is generated on a projection display in the head-up display and deflected by the windscreen in such
a way that driver seemingly sees the image floating above the bonnet. (The effect of the virtual image is the
same as when looking in a mirror: the observer looks not at the mirror but behind the mirror.)
The size of the virtual image is approx. 20 x 10 cm (width x height). The virtual image can only be seen from
a defined area from the driver's side.
Automatic adaptation of display brightness
The automatic adaptation of display brightness prevents major sudden changes in the brightness of the head-
up display when the vehicle moves between different ambient lighting conditions (e.g. from light to dark and
from dark to light when driving through a tunnel).
The automatic adjustment of the display brightness depends on
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the ambient lighting conditions,
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the brightness adjustment setting,
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the dimmer setting for instrument lighting (only when the lights are on).
The surrounding brightness (day, night, twilight, sunshine, etc.) is recorded by the rain/light sensor. The value of
the brightness adjustment (difference between base setting and individually set display brightness) is stored in
the head-up display. When the lighting is switched on (terminal 58g, lights ON) the brightness of the head-
up display is also influenced by the dimmer setting of the instrument lighting.
Prioritisation of displays
The information in the head-up display is classified according to priority (= importance for the driver). Displays
with low priority are overwritten by displays with higher priority.
Priority
Function
1
Warnings from Active Cruise Control (ACC)
SBT Head-up display E60, E61, E63, E64, E70
BMW AG - TIS
12.02.2013 16:10
Issue status (12/2007) Valid only until next DVD is issued
Copyright
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