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:
ATA (Anti-Theft Alarm system)
A visual and audible alarm is triggered if the
alarm system is armed and you open:
- a door
- the vehicle with the mechanical key
- the tailgate
- the hood
The alarm is not switched off, even i ...
Activating/deactivating ATTENTION ASSIST
Press the
or
button on the
steering wheel to select the DriveAssist
menu.
Press the
or
button to select
Attention Asst..
Press
.
The current selection is displayed.
To activate/ ...
Restoring the factory settings
•► Press the and
buttons
simultaneously for approximately six
seconds until the battery check lamp
flashes twice. ...
