Automatic High Beam Assistant
Adaptive headlight range control
The adaptive headlight range control feature bal‐ ances out acceleration and braking processes as well as the vehicle load conditions in order to avoid blinding oncoming traffic.
Principle
The Automatic High Beam Assistant detects other road users early on and automatically switches the high beams on or off depending on the traffic situation.
General information
The Automatic High Beam Assistant ensures that the high beams are switched on, whenever the traffic situation allows. In the low speed range, the high beams are not switched on by the system.
The system responds to light from oncoming traffic and traffic driving ahead of you, and to am‐ bient lighting, for instance in towns and cities.
The high beams can be switched on and off manually at any time.
Activate Automatic High Beam Assistant
Switch position: 
Press the button on the turn signal lever.
The indicator light in the instrument clus‐ ter is illuminated when the low beams are switched on.
The headlights are automatically switched be‐ tween low beams and high beams.
The blue indicator light in the instrument cluster lights up when the system switches on the high beams.
The Automatic High Beam Assistant is deacti‐ vated when manually switching the high beams on and off.
To reactivate the Automatic High Beam Assis‐ tant, press the button on the turn signal lever.
Deactivate Automatic High Beam Assistant
Press the button on the turn signal lever.
Sensitivity of the Automatic High Beam Assistant
General information
The sensitivity of the Automatic High Beam As‐ sistant can be adjusted.
Safety information
Warning
If adjustments have been made or the sensitiv‐ ity has been modified, oncoming traffic may be momentarily blinded. There is a risk of accident. If adjustments have been made and the sensi‐ tivity has been modified, make sure that on‐ coming traffic is not momentarily blinded. Switch off the high beams manually if required.
Functional requirements
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Setting at standstill only.
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Drive readiness is switched on.
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Light is turned off.
Increase sensitivity
Push the turn signal lever to the front for approxi‐ mately 10 seconds.
A Check Control message is displayed. The sys‐ tem responds more sensitively.
Resetting the sensitivity
Push the turn signal lever to the front again for approx. 10 seconds or switch off the drive-ready state.
The sensitivity of the Automatic High Beam As‐ sistant is reset to the factory settings.
System limits
The Automatic High Beam Assistant cannot re‐ place the driver's personal judgment of when to use the high beams. In situation that require this, therefore dimming manually.
The system is not fully functional in the following situations, and driver intervention may be neces‐ sary:
- In very unfavorable weather conditions, such as fog or heavy precipitation.
- When detecting poorly-lit road users such as pedestrians, cyclists, horseback riders and
- wagons; when driving close to train or ship traffic; or at animal crossings.
- In tight curves, on hilltops or in depressions, in crossing traffic or half-obscured oncoming traffic on highways.
- In poorly-lit towns and cities or in the pres‐ ence of highly reflective signs.
- When the windshield in front of the interior mirror is fogged up, dirty or covered with stickers, etc.
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