1 Series E81 118i (N46T) 3-door
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Adjustment of headlight horizontal aim
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Deactivation of adaptive headlights function under extreme handling conditions
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Deactivation of adaptive headlights function in response to system faults
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Setting headlights to parked position
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Automatic headlight-range adjustment
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Adaptive headlights for automatic driving lights control
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Turning light
Note: Different control units for adaptive headlights.
> E60, E61, E63, E64, E65, E66 up to 03/2005: The adaptive headlights are actuated by the AHL control
unit.
> E60, E61, E63, E64, E65, E66 from 03/2005: The adaptive headlights are actuated by the light module
(LM).
> E70, E81, E87, E90, E91, E92, E93: The adaptive headlights are actuated by the footwell module (FRM).
The footwell module has its own system description.
[For more information, please refer to SI Technology (SBT) 61 04 04 094]
For this reason, the following text refers to the general "control unit for adaptive headlights".
System activation and automatic calibration
When terminal 15 is switched ON, the headlights always perform a calibration sequence, even if the dipped
headlights are not switched on. The control unit for adaptive headlights sends the "perform calibration
sequence" request to the stepper motor controllers (SMCs, control units for the headlight stepper motors). The
stepper motor controllers actuate the stepper motors in the headlights. The calibration sequence is performed. In
the calibration sequence, the headlights move as follows:
1.
The headlights move to the right and left (= calibration sequence for adaptive headlights).
2.
The headlights move up and down (= calibration sequence for automatic headlight-range adjustment).
3.
At the end of the calibration sequence, the headlights are in the straight-ahead position.
Following the calibration sequence, the system is ready for operation.
When reverse gear is engaged, the headlights are moved to the straight-ahead position.
Note: The calibration sequence is performed only after terminal 15 has been switched OFF for at least
15 seconds.
> E66, E61, E63, E64, E65, E66 until 09/2006
> E87, E90, E91, E92, E93 until 03/2007
If terminal 15 is repeatedly switched on and off (e.g. for demonstration purposes), the calibration
sequence will not be executed every time terminal 15 is switched on.
Terminal 15 must have been switched off for at least 15 seconds before it is switched on again. Only then
is a calibration sequence performed when terminal 15 is switched on.
Note: Calibration sequence always after terminal 15 ON and dipped-beam headlights ON.
> E66, E61, E63, E64, E65, E66 from 09/2006
> E70 from start of series production
> E81, E87, E90, E91, E92, E93 from 03/2007
If terminal 15 is repeatedly switched on and off (e.g. for demonstration purposes), the calibration
sequence will not be executed every time terminal 15 and the dipped-bead headlights are switched ON.
Note: Calibration sequence with enlarged range of movement.
SBT Adaptive headlights E60, E61, E63, E64, E65, E66, E70, E81, E87, E90, E91, E92,
BMW AG - TIS
19.01.2013 06:32
Issue status (12/2007) Valid only until next DVD is issued
Copyright
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