Kia Sorento 2023 Manual page 627

Maintenance
* It takes some time to update the cluster
gauges after the urea solution injec-
tion.
WARNING
僅 Do not apply any external impact on
the DPF system. It may damage the
catalyst, which is equipped inside the
DPF system.
僅 Do not arbitrarily modify or manipu-
late the DPF system by redirecting or
lengthen the exhaust pipe. It may
adversely impact the DPF system.
僅 Avoid contact with drained water from
the exhaust pipe. The water is slightly
acid and harmful to skin. If contacted,
thoroughly wash it.
僅 Any arbitrary manipulation or modifi-
cation of the DPF system may cause a
system malfunction. The DPF system
is controlled by a complex electronic
control unit.
僅 Wait for the DPF system to cool down
before the maintenance service, as it
is hot due to heat generation. Other-
wise, it may cause a skin burn.
僅 Add only the specified urea solution,
when your vehicle is equipped with
the urea solution system.
僅 The urea solution system (i.e. urea
solution nozzle, urea solution pump,
and DCU) operates for approximately
2 minutes more to eliminate the
remaining urea solution inside, even
after the ENGINE START/STOP button
is pressed to the OFF position. Before
the maintenance service, make sure
that the urea solution system is com-
pletely turned OFF.
僅 A urea solution of poor quality or any
unauthorised liquids may damage the
vehicle components, including the
DPF system. Any unverified additives
in the urea solution may clog the SCR
catalyst and cause other malfunc-
tions, which require the expensive
DPF system to be replaced.
僅 When urea solution comes in contact
with the eyes or the skin, you should
thoroughly wash the contaminated
skin area.
僅 When you swallow urea solution, thor-
oughly rinse your mouth and drink a
lot of fresh water. Then, immediately
consult a doctor.
僅 When your cloth is contaminated with
urea solution, immediately change
your cloth.
僅 When you have an allergic reaction to
urea solution, immediately consult a
doctor.
僅 Make sure that urea solution is kept
out of reach from children.
僅 Wipe off any urea solution spillage
with water or cloth. When urea solu-
tion is crystalized, wipe it off with a
sponge or a cloth, which was damp-
ened in cold water.
When urea solution spillage is
exposed in air for an extended period
of time, it is crystalized in white, dam-
aging the vehicle surface.
僅 Urea solution is not a fuel additive.
Thus, it should not be injected to the
fuel tank. Otherwise, it may damage
the engine.
僅 Urea solution is an aqueous solution,
which is inflammable, non-toxic,
colourless and odourless.
僅 Store the urea solution tank only in
well-ventilated locations. When urea
solution is exposed to the hot tem-
perature at approximately 50°C for an
extended period of time (i.e. under
direct sunlight), the chemical decom-
Emission control system
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