Switching off
The system can be deactivated as follows:
▷ 
Press the button.
▷ Switch off the ignition.
See also:
Electronic brake-force distribution
The system controls the brake pressure in the
rear wheels to ensure stable braking behavior. ...
High-performance lightweight brake system
The dynamic performance of the sports sedan calls for a larger brake system,
and the new BMW 3-Series thus uses lightweight sliding-calliper brakes with
large vented discs. The aluminium front cal ...
Switching on/off
Switching on/off
Press button 1 on the steering wheel.
▷ On: lane markings 2 are lit.
▷ Off: lane markings 2 go out.
The system can issue warnings at speeds above
approx. 40 mph/65 ...