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:
Cleaning the seat belts
Use clean, lukewarm water and soap
solution.
Do not clean the seat belts
using chemical
cleaning agents. Do not dry the seat belts
by warming them above 176 °F (80 °C) or
placing th ...
Important safety notes
WARNING
Make sure the trunk lid is closed when the
engine is running and while driving. Among
other dangers, deadly carbon monoxide (CO)
gases may enter the vehicle interior resulting
in un ...
Cleaning the display
– Before cleaning the display, make sure that
it is switched off and has cooled down.
– Clean the display surface using a
commercially-available microfiber cloth
and TFT/LCD display cleaner.
– ...
