3 Series E91 330xi (N52) TOUR
The new body gateway module (KGM) supersedes the safety and gateway module (SGM) previously fitted, the
door modules and the micro-power module.
[For more information, please refer to SI Technology (SBT) 610205143] "Body gateway module"
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Xenon-headlight control unit
The xenon-headlight control unit actuates the bulb in the bi-xenon headlights.
The xenon-headlight control unit is not capable of self-diagnosis. The xenon control unit is monitored by the light
module (E70, E81, E87, E90, E91, E92, E93: footwell module).
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The following components are controlled:
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Headlights
Option 524 "Adaptive headlights" is only available in conjunction with option 522 "Xenon dipped and main-
beam headlights". This means that bi-xenon headlights are employed.
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Stepper motors for the adaptive headlights
The stepper motors turn the positioner modules in the bi-xenon headlights.
The stepper motors move the headlights vertically and horizontally (vertically = up and down for automatic
headlight range adjustment;
horizontally = left and right for the adaptive headlights function).
The positioner modules execute the movement.
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Indicator light on the light switch
The indicator light (green LED) next to the "A" (= "automatic driving lights control" and "adaptive headlights") has
2 display functions:
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The indicator light lights up permanently when the automatic driving lights control or adaptive headlights
function is switched on (= light switch in position "A").
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The indicator light flashes if a fault develops in the adaptive headlight system.
> E60, E61, E63, E64, E65 and E66:
The indicator light is actuated by the light module.
> E70, E81, E87, E90, E91, E92, E93:
The indicator light is actuated by the footwell module.
Note: From 09/2007, the fault indicator in the form of the indicator lamp on the light switch flashing is discontinued.
From 09/2007, the fault indicator in the form of the indicator lamp on the light switch flashing is discontinued
due to legal stipulations.
From 09/2007 system fault will be indicated by a Check-Control message in the instrument cluster.
System functions
The adaptive headlights system moves headlights horizontal (i.e. from left to right) in order to illuminate the inside of
a bend when cornering.
The following functions of the adaptive headlights system are described below:
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System activation and automatic calibration
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Activation of stepper motor controllers
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Speed-dependent analysis of signals
SBT Adaptive headlights E60, E61, E63, E64, E65, E66, E70, E81, E87, E90, E91, E92,
BMW AG - TIS
22.02.2013 02:02
Issue status (12/2007) Valid only until next DVD is issued
Copyright
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