Opening the DEF filler cap
The filler neck for DEF is behind the fuel filler flap.
The fuel filler flap is unlocked or locked automatically when you open or close the vehicle with the SmartKey or with KEYLESSGO.

- Switch off the ignition.
- Press the fuel filler flap in the direction of
arrow 1.
The fuel filler flap swings up.
- Turn blue DEF filler cap 2
counterclockwise and remove it.
DEF filler cap 2 is secured with a plastic
strap.
See also:
Text reader settings
Setting the text reader speed
Select Vehicle by turning
the
COMAND controller and press to
confirm.
Select System and press to
confirm.
Select Text Reader and press
to
confirm. ...
Checking the battery
•► Press the or
button.
The battery is working properly if battery
check lamp 1 lights up briefly
If battery check lamp 1 does not light up
briefly during the test, the battery is
...
Important safety notes
A license agreement must exist in order
to activate the mbrace service. Ensure that
your system is activated and ready for use,
and press the MB Info call button
to
register. If any of the ...
