See also:

Activating HDC
Press the button; the LED above the button lights up. ...

Switching off automatically
System switches off: above approx. 9 mph/ 15 km/h. Switch on the system again if necessary. ...

2009 BMW 535 Review by David Thomas
In the world of luxury station wagons, there isn't much sense in trying to justify the price tag. Normally, a wagon is a practical choice for families looking for utility with improved mileage ver ...