Service Product - Mercedes-Benz Unimog Operating Instructions Manual

Certain countries have diesel fuel with varying
sulphur content. Diesel fuel with low sulphur
content is sold in certain countries under the
name "Euro diesel".
Details about current country-specific fuel
sulphur content can be obtained from the
Mercedes-Benz Specification for Service
Products according to Sheet No. 136.2. Fur-
ther information can be obtained from a
Mercedes-Benz Service Centre.
Diesel fuels at low temperatures
G
WARNING
If you heat fuel system components, e.g. with
a hot-air gun or naked flame, these compo-
nents could be damaged. This can cause fuel
to escape and ignite. Depending on the type
of damage, fuel may also not escape until the
engine is running. There is a risk of fire and
explosion.
Never heat fuel system components. Contact
a qualified specialist workshop to rectify the
malfunction.
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 specifi-
cations outlined in EN 590. At unusually low
outside temperatures, it is possible that the
flow characteristics of the diesel fuel may be
insufficient. Accordingly, diesel fuel from
warmer areas may not be suitable for opera-
tion in colder climatic conditions.
Further information on country-specific
i
fuel properties and fuel types with low-tem-
perature resistance can be obtained from
oil companies, e.g. at filling stations.
Fuel additives
! Do not add any petrol or kerosene to die-
sel fuel to improve its flow characteristics.
Petrol or kerosene impairs the lubricity of
Service products
the diesel fuel. This can cause damage to
the injection system, for example.
The vehicle may be equipped with a fuel pre-
heating system. The fuel preheating system
can warm up the fuel by approximately 8 †.
This improves the flow characteristics of the
fuel.
®
AdBlue
®
AdBlue notes
®
! Only use AdBlue
with DIN 70070/ISO 22241. Do not use
any additives.
®
If AdBlue /DEF comes into contact with
painted or aluminium surfaces when filling
the tank, rinse the affected area immedi-
ately with plenty of water.
®
If the AdBlue tank still contains enough
®
AdBlue , pressure compensation may occur
when the tank lid is unscrewed. AdBlue
spill out. Therefore, open the AdBlue
®
carefully. If AdBlue spills out, immediately
wash the affected area with plenty of water.
®
AdBlue is a non-flammable, non-toxic, col-
ourless, odourless and water-soluble liquid.
When opening the AdBlue
amounts of ammonia vapours could escape.
Ammonia vapours have a pungent smell and
are particularly irritating to:
skin
R
mucous membranes
R
eyes
R
The vapours may cause a burning sensation in
the eyes, nose and throat as well as irritation
of the throat and watering eyes.
Avoid inhaling ammonia vapours. Only fill the
®
AdBlue tank in well-ventilated areas.
®
AdBlue should not come into contact with
skin, eyes or clothing, and should not be swal-
®
lowed. Keep AdBlue
dren.
/DEF in accordance
®
may
®
tank lid
®
tank, small
out of the reach of chil-
Z
365