Lane departure warning helps within system limits to prevent the driver from inadvertently drifting out of lane. If the system is activated and ready and the driver has not activated an indicator, the lane departure warning will prevent the vehicle from crossing recognised lane boundary lines by means of corrective steering intervention. Additional steering wheel vibration can be adjusted if the driver wishes. Operating range from approximately 60 to maximum 250 km/h
Emergency assist The emergency assist detects within system limits when the driver fails to respond. In such instances, the system provides the driver with a visual, acoustic and haptic warning. If the driver does not respond, the system assumes control of the vehicle, automatically bringing it to a stop in its own lane. Audi pre sense protective measures are activated and the vehicle is prepared for a rescue of the occupants. If available, an automatic emergency call is made.