Prerequisites
Emergency Assist is always switched on after the ignition is switched on and is ready to intervene if the following prerequisites are
met:
—The lane keeping system (Lane Assist) or semi-automated driving assistance (Travel Assist) function is switched on.
—The system has detected at least one road lane marking on the left or right of the vehicle.
If there is a system fault, Emergency Assist is not available.
Driver intervention prompt
If there is no driver activity, Emergency Assist prompts the driver to take control of the vehicle by acoustic warnings and by a braking
jolt. A message is also displayed on the instrument cluster display and the volume of the Infotainment system is reduced.
Depending on equipment, the proactive occupant protection system is triggered at the same time.
System intervention
If the driver does not respond, the system can brake the vehicle and keep it in lane if road lane markings are detected.
One of the following warning lamps lights up in the instrument cluster display, depending on the driving situation:
System performing control intervention, adaptive lane guidance active.
System performing control intervention, adaptive lane guidance passive.
You can cancel control at any time by accelerating, braking or steering strongly as appropriate for the driving situation.
Other road users will be warned as follows when Emergency Assist is actively performing control interventions:
—The hazard warning lights will be switched on after a short time.
—The vehicle horn will sound, depending on the speed.
If the remaining stopping distance is sufficient, the vehicle will be braked to a standstill if necessary.
The following will happen as soon as the vehicle is stationary:
—The electronic parking brake is switched on.
—The position is engaged.
—The doors will be unlocked.
—The interior lighting will be switched on.
—An emergency call will be made, depending on the vehicle equipment.
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