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:
Switching the belt adjustment on/off
For further information on belt adjustment.
Press the or
button on the
steering wheel to select the Settings
menu.
Press the or
button to select
Belt Adjustment.
Press the button to ...
Safety systems
Display messages
(USA only)
(Canada only) The red brake system
warning lamp comes on
while the engine is
running. A warning tone
also sounds.
Possible causes/consequences and ►
Soluti ...
Vehicle data, GL 350 BlueTEC
The data stated here refers specifically to a
vehicle with standard equipment. Consult an
authorized Mercedes-Benz Center for the
data for all vehicle variants and trim levels.
...