Low beams
Switch position 
with the
ignition switched
on: the low beams light up.
See also:
Activating HDC
Press the button; the LED above
the button
lights up. ...
Safety information
The tire characteristics and tire inflation pressure
influence the following:
The service life of the tires.
Road safety.
Driving comfort.
...
After the ignition is switched off
When the remote control is removed or the ignition
is switched off, the windows can continue
to be operated for approx. 1 minute as long as
no door is opened. ...