Low outside temperatures
DEF freezes at a temperature of approximately 12 °F (–11 °C). The vehicle is equipped with a DEF preheating system when it leaves the factory. Winter operation is therefore also guaranteed at temperatures below 12 °F (–11 °C).
See also:
System self-test
After you have switched on the ignition, the
system carries out a self-diagnosis.
WARNING
A malfunction in the system has been
detected if one of the following conditions
occurs:
• the in ...
Switching to audio CD, audio DVD or MP3 mode
Insert a CD/DVD.
The Rear Seat Entertainment System loads
the inserted disc.
Select Disc in the menu using the
buttons on the remote
control and press the button to
confirm.
The corresp ...
Activating the rear view camera
Make sure that the SmartKey is
in position 2 in the ignition lock.
Make sure that the "rear view
camera" function is selected in COMAND (see the separate operating instructions
for ...