Maintenance
84 7
Urea solution purity
• The following situations may damage
the DPF system.
- Fuels or any unauthorized liquids are
added into the urea solution tank.
- Additives are mixed in the urea solu-
tion.
- Water is added to dilute the urea
solution.
• Use only the ISO 22241- or DIN7007O-
specified urea solution. When any unau-
thorized urea solution is added to the
tank, we recommend you to contact an
authorized HYUNDAI dealer.
• When any unauthorized impurities
enter the urea solution tank, it may
occur the following problems.
- Increased emission
- Malfunction with the DPF system
- Engine failure
Never add the used urea solution, which
is drained from the tank (i.e. while main-
taining the vehicle). Its purity cannot be
guaranteed. Always add the new urea
solution.Specific
ation of
the
tandard
urea
solutionLiquid such as diesel, gasoline
and alcohol shall never be used
for SCR system. Any fluid other
than recommended urea solu-
tion (conform to ISO22241 or
DIN70070) can damage SCR
system hardware and deterio-
rate vehicle emission.WARNING
• When opening the urea solution
tank cap at high outside tempera-
tures, ammonia vapors may
escape. Ammonia vapors have a
pungent smell and primarily
cause irritation of the:
- Skin
- Mucous membranes
- Eyes
You may experience a burning
sensation in your eyes, nose and
throat, as well as coughing and
watering of the eyes. Do not
inhale ammonia vapors. Do not
allow urea solution to come in
direct contact with your skin. It is
hazardous to your health. Wash
any affected areas off with plenty
of clean water. If necessary, con-
sult a doctor.
• When handling with urea solution
in closed space, ensure good ven-
tilation. When the bottle of urea
solution container is opened, pun-
gent smelling fumes may escape.
(Continued)
785
Maintenance
(Continued)
• Keep urea solution out of reach
of children.
• When urea solution overflows
into vehicle surface, wash out
vehicle surface with clean water
to prohibit corrosion from occur-
ring.
• When replenishing, be careful
lest the urea solution should
overflow.
• In case the vehicle was parked at
very low ambient temperature
(below 11 dgree Celcius) for a
long time, the urea solution will
be frozen in the urea solution
tank. With frozen urea, the tank
level may not be detected cor-
rectly until the urea solution will
be defrosted by activated heater.
Incorrect urea or diluted urea can
increase the freezing point, and
thus defrosting may not be prop-
erly done by the heater which is
activated below certain tempera-
tures. This phenomenon may
cause malfunction of the SCR
system which can lead to the pro-
hibition of engine restarting.
(Continued)(Continued)
• The time to defrost the urea solu-
tion varies in accordance with
driving conditions and outside
temperatures.CAUTION
• If defective urea solution or liquid
that is not recommended is sup-
plied, there may be damage on
the parts of the vehicle such as
processing device. If defective
fuel is used, foreign objects will
be accumulated to SCR catalyst
and cause catalyst pushed away
or breaking.
After adding the incorrect urea
solution, please visit the closest
service center as early as possi-
ble.
• Liquid that are not recommended
such as diesel, gasoline, and
alcohol shall never be used other
than the recommended urea solu-
tion that satisfy ISO22241 or
DIN70070.
• If defective urea solution or liquid
that is not recommended is sup-
plied, there may be damage on
the parts of the vehicle such as
processing device. If defective
fuel is used, foreign objects will
be accumulated to SCR catalyst
and cause catalyst pushed away
or breaking.
