Mercedes-Benz 2016 GLE Operator's Manual page 170

Refueling
168
and cold water to clean it. DEF residues crys-
tallize after time and contaminate the affec-
ted surfaces.
!
DEF is not a fuel additive and must not be
added to the fuel tank. If DEF is added to the
fuel tank, this can lead to engine damage.
For further information on DEF, see
( page 436).
Y
Opening the DEF filler cap
The fuel filler flap is unlocked or locked auto-
matically when you open or close the vehicle
with the SmartKey or with KEYLESS-GO.
Switch the ignition off.
X
Press the fuel filler flap in the direction of
X
arrow :.
The fuel filler flap swings up.
Turn blue DEF fuel filler cap ; counter-clock-
X
wise and remove it.
DEF filler cap ; is secured with a plastic
strip.
DEF refill canisters
!
Do not tighten the disposable hose with too
much force. The disposable hose may other-
wise be destroyed.
Unscrew the cap from the opening on top of
X
DEF refill canister ;.
Place disposable hose : on the opening of
X
DEF refill canister ; and screw it on clock-
wise until hand-tight.
i
Disposable hose : remains closed until
you fasten disposable hose : to the DEF
filler neck of the vehicle.
Place disposable hose : on the filler neck on
X
the vehicle and screw it on clockwise until
hand-tight. When you feel resistance, dispos-
able hose : is sufficiently secured.
Lift up and tip DEF refill canister ;.
X
i
Filling stops when the DEF tank is com-
pletely filled. Do not fill the DEF tank any fur-
ther. DEF refill canister ; can be removed
when it has been only partially emptied.
Turn disposable hose : on the filler neck of
X
the vehicle counter-clockwise and remove it.
Turn disposable hose : on the opening of
X
DEF refill canister ; counter-clockwise and
remove it.
Reseal DEF refill canister ; with the cap.
X
DEF refill canisters can be obtained at many gas
stations or at an authorized Mercedes-Benz
Center. DEF refill canisters are often sold with a
filler hose. A filler hose that does not exactly fit