The Driving Assistant safety equipment combines the camera-based systems Lane Departure Warning and Approach control and Person warning with light city braking function. The Lane Departure Warning detects lane markings and alerts the driver to an unintentional lane change at speeds above approx. 70 km/h by means of vibrations in the steering wheel. The warning is not activated if the lane change is deliberate, that is, when the indicator has been activated.
Whereas the Approach control warning with light city braking function identifies vehicles, the Person warning with light city braking function recognizes pedestrians. If a vehicle ahead brakes suddenly, the BMW responds immediately when the Approach control warning is activated. First a warning symbol appears, which begins to flash in the next stage, and then an acoustic signal sounds. If the driver still does not react, at speeds of up to 60 km/h the system begins to brake by itself. At speeds of approximately 20-25 km/h, Person warning helps to prevent accidents with pedestrians, and at speeds of up to 60 km/h, it reduces the severity of the accident. If the system needs to intervene, it preconditions the brakes for faster responsiveness and begins braking if necessary. The Attentiveness assistant monitors the driver's behaviour for signs of fatigue. When it detects any abnormalities, a suggestion to take a break is shown in the Control Display.