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:
High-beam headlamps (halogen headlamps)
Switch off the lights.
Open the hood.
Remove the headlamp cover ().
Left-hand headlamp: detach the washer fluid reservoir ().
Turn housing cover 1 counter-clockwise and pull it out.
Pre ...
Parking brake
WARNING
Engaging the parking brake while the vehicle
is in motion can cause the rear wheels to lock
up. You could lose control of the vehicle and
cause an accident. In addition, the vehicle ...
Showing the distance display
This function is only available with
DISTRONIC PLUS.
•► Press the button on the
steering wheel to select the DriveAssist
menu.
•► Press the button to select
Distance Display.
...
