Kia Sorento 2023 Manual page 621

Maintenance
Failure to observe these precautions
could result in damage to the catalytic
converter and to your vehicle. Addition-
ally, such actions could void your war-
ranties.
Petrol particulate filter (if
equipped)
The Petrol Particulate Filter (PPF) is the
system that removes the soot from the
exhaust gas. Unlike a disposable air fil-
ter, the PPF system automatically burns
(oxidizes) and removes the accumulated
soot whilst driving.
However, repeated short-distance driv-
ing or long-distance driving at a low
speed can stop the accumulated soot
from automatically being removed by
the PPF system. If the accumulated soot
reaches a certain amount, the PPF warn-
ing light ( ) will appear. To re-oper-
ate the PPF system, the vehicle should
be driven for more than 30 minutes at a
speed of 80 km/h and faster. Ensure the
following conditions are met: safe road
conditions, transmission 3 or above, and
engine speed of 1,500-4,000 rpm. Driv-
ing at 80 km/h or faster for recom-
mended hours will get the PPF system
back to work and stop the PPF warning
light.
If the PPF warning light stays on or the
warning message "check exhaust sys-
tem" pops up even after driving at rec-
ommended speed and for
recommended hours, visit a professional
workshop and have them check the PPF
system. Constant driving with the PPF
warning light on can damage the PPF
system and undermine fuel economy.
Diesel particulate filter (if
equipped)
The Diesel Particulate Filter (DPF) sys-
tem removes the soot in the exhaust
gas.
Unlike a disposable air filter, the DPF
system automatically burns (oxidizes)
and removes the accumulated soot
according to the driving condition. In
other words, the active burning by
engine control system and high exhaust
gas temperature caused by normal/high
driving condition burns and removes the
accumulated soot. However, if the vehi-
cle continues to be driven at repeated
short distance or driven at low speed for
a long time, the accumulated soot may
not be automatically removed because
of low exhaust gas temperature. More
than a certain amount of soot deposited,
the malfunction indicator light (
appears.
When the malfunction indicator light
blinks, it may stop blinking by driving the
vehicle at more than 60 km/h (37 mph)
or at more than second gear with 1500 ~
2500 engine rpm for a certain time (for
about 25 minutes).
If the malfunction indicator light (
continues to be blinked or the warning
message "Check exhaust system"
appears in spite of the procedure, visit a
professional workshop and check the
DPF system. Kia recommends to visit an
authorised Kia dealer/service partner. If
you continue to drive with the malfunc-
tion indicator light blinking for a long
time, the DPF system can be damaged
and fuel consumption can be worsen
and engine durability can be worsen by
oil dilution.
Emission control system
)
)
8 87
8