Maintenance
9-82
Diesel particulate filter (DPF) (if
equipped)
The Diesel Particulate Filter (DPF) system
removes the soot in the exhaust gas.
The DPF system automatically burns
(or oxidizes) the accumulated soot in
accordance with driving situations,
unlike a disposable air filter.
In other words, the accumulated soot is
automatically purged out by the engine
control system and by the high exhaust-
gas temperature at normal/ high driving
speeds.
However, when the vehicle is continually
driven at repeated short distances or
driven at low speed for a long time,
the accumulated soot may not be
automatically removed because of low
exhaust gas temperature. In this case,
the accumulated soot is out of the
detection range, the soot oxidization
process does not occur, and the Diesel
Particulate Filter (DPF) Lamp (
)
Illuminates.
The Diesel Particulate Filter (DPF) Lamp
stops illuminating, when the driving
speed exceeds 37mph, or when the
engine rpm is between 1,500 and 2,500
with the gear in the 2nd position or
above for approximately 25 minutes.
When the DPF Lamp continuously
blinks or the warning message “Check
exhaust system” illuminates in the above
cases, we recommend that you have the
DPF system checked by an authorised
Retailer of Genesis Branded Products.
When the vehicle is continuously driven
with the DPF Lamp flashing for an
extended period of time, it may damage
the DPF system and lower the fuel
economy.
CAUTION
Diesel Fuel (if equipped with DPF)
We recommend you to use only the
regulated diesel fuels, when your
vehicle is equipped with the DPF
system.
When you use other diesel fuels, which
are high in sulfurs (above 50 ppm) or
that contain unspecified additives, they
may damage the DPF system and cause
white smoke emissions.
Lean NOx Trap (if equipped)
The Lean NOx Trap (LNT) system
removes the nitrogen oxide from the
exhaust gas. A smell can occur in the
exhaust gas depending on the quality
of the fuel, and it can degrade NOx
reduction performance. Please use the
regulated automotive diesel fuel.
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