3 Series E91 335i (N54) TOUR
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Automatic alignment of the main-beam assistant
Automatic main-beam headlight switch-off when oncoming traffic is detected
The light cone of the main-beam headlights has a range of about 400 m. The image sensor can detect other
light sources within a range of about 1000 m. This ensures that the image sensor detects oncoming vehicles
before their drivers can be dazzled by the light cone of the main-beam headlights.
When the image sensor detects an oncoming vehicle, the FLA control unit sends a switch-off recommendation
to the light module or footwell module. The light module or footwell module switches the main-beam headlights
off.
Automatic main-beam headlight switch-off when vehicle detected ahead of the car
When the image sensor detects a vehicle ahead, the FLA control unit sends a switch-off recommendation to the
light module or footwell module. The light module or footwell module switches the main-beam headlights off.
Automatic main-beam headlight switch-off when adequate ambient lighting is detected
When the image sensor detects an environment in which ambient lighting is adequate, the FLA control unit
sends a switch-off recommendation to the light module or footwell module. The light module or footwell module
switches the main-beam headlights off.
Adequate ambient lighting means:
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Daylight
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Twilight
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Street lighting (e. g. in illuminated towns)
Automatic main-beam headlight switch-on
If there is no reason for the lights to be dipped, the light module or footwell module switches the main-beam
headlights on. The bi-xenon headlights are switched to full beam.
Displays in the instrument cluster
The FLA indicator light lights up in the instrument cluster as soon as the main-beam assistant is activated (blue
on the BMW 7-Series, orange on the BMW 3, 5, and 6-Series and on the X5).
The main-beam indicator light also lights up (blue) in the usual way as soon as the main-beam headlights are
switched on.
A Check-Control symbol appears (yellow) if the FLA control unit detects a system failure.
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Function limitations of the main-beam assistant
The main-beam assistant can be subject to function limitations under the following circumstances:
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Inclement weather conditions (e.g. fog)
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Poorly lighted road users (e.g. cyclists, pedestrians)
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Certain road signs (e.g. the warning sign for a tight bend): Reflections from traffic signs may be incorrectly
interpreted by the main-beam assistant as a vehicle driving ahead or as oncoming traffic.
[more ...]
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Driving over crests and through dips
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Certain traffic situations (e.g. tight bends, vehicles approaching from the side)
SBT Main-beam assistant E60, E61, E63, E64, E65, E66, E70, E90, E91, E92, E93
BMW AG - TIS
24.02.2013 03:31
Issue status (12/2007) Valid only until next DVD is issued
Copyright
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