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:
Vehicle
Display messages
Shift to P or N
to start engine.
Possible causes/consequences and ►
Solutions
You have attempted to start the engine with the transmission in
position R or D.
► Sh ...
Capacities
Missing values were not available at time of going to print.
...
Windows fogged up on the inside
Activate the cooling with air
dehumidification function .
Activate automatic mode
.
If the windows continue to fog up,
activate the defrosting function.
You should only select this
setti ...
