The Driving Assistant package combines Lane Departure Warning system with approach control and pedestrian warning.
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.
The Approach control warning system monitors the situation in front of the car. If a vehicle ahead brakes suddenly, the BMW 3 Series takes a progressively active response. A warning symbol is first displayed, then the symbol begins flashing and an acoustic warning is emitted, and finally the brakes are lightly applied (when travelling at speeds under 60 km/h).
Similarly, the pedestrian warning operates at speeds between 10 and 60 km/h and emits a single-level warning in the event of acute danger. If the system warns of a potential collision, the brakes are simultaneously preconditioned for a faster response. In the event of an emergency, the system applies the brakes. Note, this function can be limited by darkness and fog.