The concept

Two radar sensors below the rear bumper monitor the area behind and next to the vehicle at speeds above approx. 30 mph/50 km/h.
The system indicates whether there are vehicles in the blind spot, arrow 1, or approaching from behind on the adjacent lane, arrow 2.
The lamp in the exterior mirror housing lights up dimly.
Before you change lanes after setting the turn signal, the system issues a warning in the situations described above.
The lamp in the housing of the exterior mirror flashes and the steering wheel vibrates.
See also:
Navigation system
General informationThe navigation system can determine the precise position of the vehicle, with
the aid of satellites and vehicle sensors, and can reliably guide you to every entered
destination. ...
Six-speed manual transmission as standard
The sporty six-speed manual transmission in the new BMW 3-Series boasts an
easy and precise shifting action and optimal ratio spacing. The lightweight,
compact format and innovative, low-friction ...
Vehicle equipment
All standard, country-specific and optional
equipment that is offered in the model series is
described in this chapter. Therefore, equipment
is also described that is not available in a vehicle,
e ...
