Refuelling
174
Problems with the fuel and fuel tank
If your vehicle is losing fuel, the fuel lines or the
fuel tank are defective:
X
Turn the key immediately to position 0 in the
ignition lock and remove it.
X
Do not restart the engine under any circum-
stances.
X
Consult a qualified specialist workshop.
If the fuel tank has been run dry, after refuelling
carry out the following steps:
X
Before starting the engine: switch on the igni-
tion three or four times.
X
Turn the key to position 2 in the ignition lock
Y
(
page 159).
The % preglow indicator lamp in the instru-
ment cluster lights up briefly.
X
Once the % preglow indicator lamp goes
out, turn the key to position 3 in the ignition
lock and release it as soon as the engine is
running.
You can start the diesel engine without preglow
when the engine is warm.
®
AdBlue
General notes
To function properly, the exhaust gas aftertreat-
ment in BlueTEC vehicles must be operated with
the NOx reducing agent AdBlue
When the supply of AdBlue
of approximately 6.5 l, the first warning mes-
Refill AdBlue See Owner's Manual
sage
shown in the display.
Have the vehicle's AdBlue
qualified specialist workshop. However, you can
also top up the AdBlue
with the pump nozzle at an AdBlue
R
Y
pump (
page 175)
with an AdBlue
R
®
with AdBlue
R
Before you travel outside Europe, check the
®
AdBlue
supply and get advice from a qualified
specialist workshop.
Further information on exhaust gas aftertreat-
ment in BlueTEC
®
tion on AdBlue
Benz Service Centre.
®
Y
(
page 33).
®
is down to a reserve
®
tank refilled at a
®
tank:
®
®
Y
refill canister (
page 176)
Y
refill bottles (
page 176)
®
vehicles as well as informa-
can be obtained at a Mercedes-
Low ambient temperatures
AdBlue freezes at a temperature of approx-
imately -11 †. The vehicle is equipped with an
®
AdBlue
preheating system at the factory. Win-
ter operation can thus be guaranteed even at
temperatures below -11 †.
If you top up AdBlue
-11 †, the AdBlue
display may not be displayed correctly. If the
®
AdBlue
is frozen, drive for at least 20 minutes
and then park the vehicle for a minimum of
30 seconds, so that the level is correctly dis-
played.
Important safety notes
!
Only use AdBlue
ISO 22241 standard.
Do not mix AdBlue
not dilute AdBlue
aftertreatment may otherwise not function
correctly and its components may be dam-
aged.
!
In order to fill the AdBlue
must be parked on a level surface. The
®
AdBlue
with the vehicle parked on a level surface. In
this way, differences in filling quantities can
be avoided.
Filling a vehicle standing on an uneven sur-
face is not permitted. There is a danger of
overfilling. The components of the exhaust
gas aftertreatment system may be damaged
as a result.
is
Surfaces which have come into contact with
!
®
AdBlue
immediately with water, or remove AdBlue
with a moist cloth and cold water. If AdBlue
has already crystallised, use a sponge and
cold water to clean the area. AdBlue
filling
crystallises after a certain amount of time and
soils the affected surfaces.
!
AdBlue
be added to the fuel tank. If AdBlue
to the fuel tank, this can lead to engine dam-
age.
If you open the AdBlue
ammonia vapour may be released.
Ammonia vapours have a pungent smell and are
particularly irritating to skin, mucous mem-
®
at temperatures under
®
level in the multifunction
®
which meets the
®
with any additives and do
®
with water. Exhaust gas
®
tank, the vehicle
tank can only be filled as intended
while refilling should be rinsed
®
is not a fuel additive and must not
®
tank, small amounts of
®
®
®
residue
®
is added
Need help?
Do you have a question about the Vito 111 CDI/BlueTEC and is the answer not in the manual?