adblue MERCEDES-BENZ GLC 2017 Owners Manual

To avoid transporting already opened refill con-
tainers in the vehicle, completely empty refill
bottles or canisters when filling the DEF tank, if
possible.
For further information on DEF, see
( Y
page 367).
Opening/closing the DEF filler cap X
To open: switch the ignition off.X
Press the fuel filler flap in the direction of
arrow C .
The fuel filler flap swings up. X
Turn blue DEF filler cap D counter-clockwise
and remove it.
DEF filler cap D is secured with a plastic
strip. X
To close: place DEF filler cap D on the filler
neck and turn it clockwise. X
To close the fuel filler flap, press it in the
direction of arrow C .X
Drive faster than 10 mph (16 km/h).
The Refill AdBlue See Operator’s Man‐
ual message goes out after approximately
one minute.
If the Refill AdBlue See Operator’s Man‐
ual message continues to be shown in the mul-
tifunction display, you must add more DEF.
i The fuel filler flap is unlocked or locked
automatically when you unlock or lock the
vehicle.
DEF refill canisters
! Do not screw the disposable hose on too
tight. The disposable hose could otherwise be
damaged and DEF may leak out. X
Unscrew the cap from the opening on top of
DEF refill canister D .X
Place disposable hose C on the opening of
DEF refill canister D and screw it on clock-
wise until hand-tight.
Disposable hose C remains closed until you
fasten disposable hose C to the DEF filler
neck of the vehicle.
X
Place disposable hose C on the filler neck on
the vehicle and screw it on clockwise until
hand-tight. When you feel resistance, dispos-
able hose C is sufficiently secured. X
Lift up and tip DEF refill canister D .
Filling stops when the DEF tank is completely
filled. Do not fill the DEF tank any further. DEF
refill canister D can be removed when it has
been only partially emptied. X
Turn disposable hose C on the filler neck of
the vehicle counter-clockwise and remove it. X
Turn disposable hose C on the opening of
DEF refill canister D counter-clockwise and
remove it. X
Reseal DEF refill canister D with the cap.
DEF refill canisters are available at many gas
stations or at a qualified specialist workshop.
DEF refill canisters are often sold with a filler
hose. A filler hose that does not exactly fit the
vehicle's DEF tank offers no protection against Refueling 153
Driving and parking Z

X
Press d or c to select the AdBlue
submenu. X
Press v to confirm your selection.
The range and DEF level appear in a bar graph
in the multifunction display.
Observe the information and notes on "Refuel-
ing" ( Y
page 151).
Settings menu
Introduction Depending on the equipment installed in the
vehicle, you have the following options in the
Settings menu:R
Changing assistance settings ( Y
page 220).R
Changing head-up display settings
( Y
page 222).R
Changing the light settings ( Y
page 223).R
Changing the instrument cluster settings
( Y
page 223).R
Restoring the factory settings ( Y
page 223).
Assistance submenu
Deactivating/activating ESP ®
Observe the "Important safety notes" section in
the description of ESP ®
( Y
page 70).
G WARNING
If you deactivate ESP ®
, ESP ®
no longer sta-
bilizes the vehicle. There is an increased risk
of skidding and an accident.
Only deactivate ESP ®
in the situations descri-
bed in the following.
It may be best to deactivate ESP ®
in the follow-
ing situations: R
when using snow chains R
in deep snow R
on sand or gravel
Deactivating/activating ESP ®
in Mercedes-
AMG vehicles ( Y
page 71).
For further information about ESP ®
, see
( Y
page 70). X
Start the engine. X
Press the