Controls
Activating
Switch position 
with the ignition switched
on.
The turning lamps are automatically switched on depending on the steering angle or the use of turn signals.
Standstill function: to avoid blinding oncoming traffic, the Adaptive Light Control directs light towards the front passenger side when the vehicle is at a standstill.
When driving in reverse, both turning lamps are active.
See also:
Switching on automatically
Select transmission position R with the engine
running.
The images from Top View and PDC are displayed
when the system has been switched on
using iDrive. ...
Maintaining/storing the speed
Press the button*.
When the system is switched on, the current
speed is maintained and stored as the desired
speed.
It is displayed in the speedometer and briefly
displayed in the instrument ...
Actions in the event of a flat tire
Run-flat tires
You can continue driving with a damaged tire at
speeds up to 50 mph/80 km/h.
Do not continue driving without run-flat
tires
If the vehicle is not equipped with run-flat tires
...