components in the exhaust system may over-
heat unnoticed. There is a risk of fire.
Never refuel with petrol. Never add petrol to
diesel fuel.
!
When refuelling, only use diesel fuel that
conforms to the European standard EN 590 or
is of equivalent quality. Fuel that does not
conform to EN 590 can lead to increased wear
as well as damage to the engine and exhaust
system.
!
Do not use the following:
R
marine diesel
R
heating oil
R
bio-diesel
R
vegetable oil
R
petrol
R
paraffin
R
kerosene
Do not mix such fuels with diesel fuel and do
not use any special additives. Otherwise,
engine damage may occur.
Usually you will find information about the fuel
grade on the pump. If you cannot find the label
on the petrol pump, ask the filling station staff.
Information on refuelling (
Y
page 167).
Low outside temperatures
In winter months, diesel fuel with an improved
cold flow quality is available. In Europe, the
EN 590 standard defines various climate-
dependent temperature categories. Malfunc-
tions can be avoided by refuelling with diesel
fuel that corresponds to the climatic specifica-
tions outlined in EN 590. At unusually low out-
side temperatures, it is possible that the flow
characteristics of the diesel fuel could be insuf-
ficient. Accordingly, diesel fuel from warmer
areas may not be suitable for operation in colder
climatic conditions.
i
Further information on country-specific fuel
properties and fuel types with low-tempera-
ture resistance can be obtained from oil com-
panies, e.g. at filling stations.
AdBlue
®
Important safety notes
AdBlue
®
is a water-soluble fluid for the exhaust
gas aftertreatment of diesel engines. It is:
R
non-toxic
R
colourless and odourless
R
non-flammable
If you open the AdBlue
®
tank, small amounts of
ammonia vapour may be released.
Ammonia vapours have a pungent odour and are
particularly irritating to the skin, to mucous
membranes and to the eyes. You may experi-
ence a burning sensation in your eyes, nose and
throat. You may also experience coughing and
watery eyes.
Do not inhale any ammonia vapours that may be
released. Only fill the AdBlue
®
tank in well-ven-
tilated areas.
Low outside temperatures
AdBlue
®
freezes at a temperature of approx-
imately -11 †. The vehicle is delivered from the
factory equipped with an AdBlue
®
preheating
system. Winter operation can thus be guaran-
teed even at temperatures below -11 †.
Additives
!
Only use AdBlue
®
in accordance with ISO
22241. Do not use additives with AdBlue
®
and do not dilute AdBlue
®
with water. This
may destroy the BlueTEC exhaust gas after-
treatment system.
Purity
!
Impurities in AdBlue
®
(e.g. due to other ser-
vice products, cleaning agents or dust) lead
to:
R
increased emission values
R
damage to the catalytic converter
R
engine damage
R
malfunctions in the BlueTEC
®
exhaust gas
aftertreatment system
Assuring the purity of AdBlue
®
is particularly
important with respect to avoiding malfunctions
in the BlueTEC exhaust gas aftertreatment sys-
tem.
374
Service products and capacities
Tec
hni
cal
data
