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:
Telescopic rod
The telescopic rod can be used to secure the
load against the rear seats to prevent it from
moving around.
► Insert one mounting element 2 into each
loading rail.
► Turn mounting el ...
Safety systems
Display messages
Possible causes/consequences and
Solutions
Risk of accident
ABS (Anti-lock Braking System), ESP® (Electronic Stability
Program), BAS (Brake Assist) ...
Low outside temperatures
DEF freezes at a temperature of
approximately 12 °F (–11 °C). The vehicle is
equipped with a DEF preheating system when
it leaves the factory. Winter operation is
therefore also guaranteed at ...