779
Maintenance
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 a
HYUNDAI authorised repairer.
• 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. whilst main-
taining the vehicle). Its purity cannot be
guaranteed. Always add the new urea
solution.WARNING
• When opening the urea solution
tank cap at high outside tempera-
tures, ammonia vapours may
escape. Ammonia vapours 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 vapours. 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
ventilation. When the bottle of
urea solution container is
opened, pungent smelling fumes
may escape.
(Continued)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.
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