System functions
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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:
- System activation and automatic calibration
- Activation of stepper motor controllers
- Speed-dependent analysis of signals
- Adjustment of headlight horizontal aim
- Deactivation of adaptive headlights function under extreme handling conditions
- Deactivation of adaptive headlights function in response to system faults
- Setting headlights to parked position
- Automatic headlight-range adjustment
- Adaptive headlights for automatic driving lights control
- 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 this reason, the following text refers to the general "control unit for adaptive headlights".