2019 Hyundai Santa Fe Owner's Manual - RHD (UK, Australia)

7-82
Maintenance
Canister
Fuel vapours generated inside the
fuel tank are absorbed and stored in
the onboard canister. When the
engine is running, the fuel vapours
absorbed in the canister are drawn
into the surge tank through the purge
control solenoid valve.
Purge Control Solenoid Valve
(PCSV)
The purge control solenoid valve is
controlled by the Engine Control
Module (ECM); when the engine
coolant temperature is low during
idling, the PCSV closes so that evap-
orated fuel is not taken into the
engine. After the engine warms-up
during ordinary driving, the PCSV
opens to introduce evaporated fuel to
the engine.
3. Exhaust emission control
system
The Exhaust Emission Control System
is a highly effective system which con-
trols exhaust emissions whilst main-
taining good vehicle performance.
Engine exhaust gas precautions
(carbon monoxide)
• Carbon monoxide can be present
with other exhaust fumes. Therefore,
if you smell exhaust fumes of any
kind inside your vehicle, have it
inspected and repaired immediately.
If you ever suspect exhaust fumes
are coming into your vehicle, drive it
only with all the windows fully open.
Have your vehicle checked and
repaired immediately.
• Do not operate the engine in con-
fined or closed areas (such as
garages) any more than what is
necessary to move the vehicle in or
out of the area.• When the vehicle is stopped in an
open area for more than a short
time with the engine running,
adjust the ventilation system (as
needed) to draw outside air into the
vehicle.
• Never sit in a parked or stopped
vehicle for any extended time with
the engine running.
• When the engine stalls or fails to
start, excessive attempts to restart
the engine may cause damage to
the emission control system.
Operating precautions for cat-
alytic converters (if equipped)Engine exhaust gases contain
carbon monoxide (CO). Though
colourless and odourless, it is
dangerous and could be lethal if
inhaled. Follow the instructions
following to avoid CO poisoning.
WARNING
•A hot exhaust system can
ignite flammable items under
your vehicle. Do not park, idle,
or drive the vehicle over or
near flammable objects, such
as dry grass, paper, leaves, etc.
WARNING

7-83
7
Maintenance
Your vehicle is equipped with a cat-
alytic converter emission control
device.
Therefore, the following precautions
must be observed:
• Use only UNLEADED FUEL for
petrol engines.
• Do not operate the vehicle when
there are signs of engine malfunc-
tion, such as misfire or a noticeable
loss of performance.• Do not misuse or abuse the
engine. Examples of misuse are
coasting with the engine off and
descending steep grades in gear
with the engine off.
• Do not operate the engine at high
idle speed for extended periods (5
minutes or more).
• Do not modify or tamper with any
part of the engine or emission con-
trol system. All inspections and
adjustments must be made by a
HYUNDAI authorised repairer.
• Avoid driving with a very low fuel
level. If you run out of petrol, it
could cause the engine to misfire
and result in excessive loading of
the catalytic converter.
Failure to observe these precautions
could result in damage to the catalyt-
ic converter and to your vehicle.
Additionally, such actions could void
your warranties.
Gasoline (Petrol) Particulate
Filter (GPF) (if equipped)
The Gasoline (Petrol) Particulate
Filter (GPF) system removes the soot
in the exhaust gas.
The GPF system automatically burns
(or oxidises) 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 continu-
ally 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
Gasoline (Petrol) Particulate Filter
(GPF) Lamp ( ) Illuminates.
•The exhaust system and cat-
alytic system are very hot
whilst the engine is running or
immediately after the engine
is turned off. Keep away from
the exhaust system and cat-
alytic converter as you may
get burned.
Also, do not remove the heat
sink around the exhaust sys-
tem, do not seal the bottom of
the vehicle and do not coat the
vehicle for corrosion control. It
may present a fire risk under
certain conditions.

7-84
Maintenance
The Gasoline (Petrol) Particulate
Filter (GPF) Lamp stops illuminating,
when the driving speed exceeds 50
mph (80 km/h), or when the engine
rpm is between 1,500 and 4,000 with
the gear in the 3rd position or above
for approximately 30 minutes.
When the GPF Lamp continuously
blinks or the warning message “Check
exhaust system” illuminates in the
above cases, we recommend that you
have the GPF system checked by a
HYUNDAI authorised repairer.
When the vehicle is continuously driv-
en with the GPF Lamp flashing for an
extended period of time, it may dam-
age the GPF system and lower the
fuel economy.
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 oxidises) 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 continu-
ally 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.
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 unspeci-
fied additives, they may damage
the DPF system and cause white
smoke emissions.
CAUTION
Gasoline (Petrol) Fuel
(if equipped with GPF)
We recommend you to use only
the regulated petrol fuels, when
your vehicle is equipped with
the GPF system.
When you use other petrol fuels
which contain unspecified addi-
tives, they may damage the GPF
system and cause exhaust
emission problems.
CAUTION

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7
Maintenance
The Diesel Particulate Filter (DPF)
Lamp stops illuminating, when the
driving speed exceeds 37 mph (60
km/h), 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 a
HYUNDAI authorised repairer.
When the vehicle is continuously driv-
en with the DPF Lamp flashing for an
extended period of time, it may dam-
age the DPF system and lower the
fuel economy.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 quali-
ty of the fuel, and it can degrade NOx
reduction performance. Please use
the regulated automotive diesel fuel.
Selective Catalytic Reduction
(if equipped)
The Selective Catalytic Reduction
(SCR) system is to catalytically con-
vert NOx to Nitrogen and Water by
using the reduction agent, the urea
solution.
Urea gauge (if equipped)
The urea solution gauge indicates
the approximate amount of remain-
ing urea solution inside the urea
solution tank.
❈The urea gauge image pops up,
whenever the ignition switch is
pressed to the ON position.
OTM048163L

7-86
Maintenance
The lack warning messages of Urea
appear below Urea 5.4 litre. When
the warning message "Low urea" is
displayed with SCR warning lamp
( ), the urea tank needs to be
refilled. If not refilled for a consider-
able mileage, visual warning system
will escalate the intensity by display-
ing the message "Refill urea" with
SCR warning lamp ( ).
In this case, the tank soon needs to
be refilled. The remaining urea in the
tank approaches to too low level the
warning message "Refill urea in
000km or vehicle will not start" with
SCR warning lamp ( ). "xxx mile
(km)" represents the remaining trav-
el distance allowed, so do not contin-
ue driving to the limit of the remain-
ing travel distance without refilling.
Otherwise, the vehicle can't be
restarted once the engine is turned
off by ignition key. Based on the driv-
ing pattern, environmental condition
and road profile, the deducted
remaining mileage may differ from
the actual travel distance.When "Low urea" or "Refill urea"
message is displayed, add at least 4
litres of urea. When "Refill urea in
000km or vehicle will not start" mes-
sage is displayed, fill up urea at least
6 litres. When "Refill urea tank
Otherwise vehicle will not start" mes-
sage is displayed with SCR warning
lamp ( ), the vehicle can't be
restarted once the engine is turned
off by ignition key. For the above
cases, full replenishment is always
recommended.
OTM078072R/OTM078075R/OTM078074L/OTM078073


7-87
7
Maintenance
Upon detecting a malfunctionDriving 50 km after detecting
a malfunction
Urea system failure
(= no fuel injection)
Incorrect urea detected
(= abnormal urea)
Abnormal urea-solution
consumption
(= post treatment failure)
Malfunction with the SCR system (if equipped)
SCR system has malfunction due to disconnected electrical components, incorrect urea and so on.
"xxx km(mile)" represents the remaining travel distance allowed, so do not continue driving to the limit of the remain-
ing travel distance without fixing the source of the malfunction. Otherwise, the vehicle can't be restarted once the
engine is turned off by ignition key. In this case, we recommend that the system be inspected by a HYUNDAI autho-
rised repairer.

7-88
Maintenance
Once the inducement system
reached to final status and disabled
the vehicle restart, it will only be
deactivated in case the urea tank is
replenished or the malfunctions have
been rectified. If the vehicle can't be
restarted with "Refill urea tank
Otherwise vehicle will not start" mes-
sage, refill more than 6 litres urea,
wait for minutes and try vehicle start-
ing again. If vehicle starting is not
possible regardless of urea level, we
recommend that the system be
inspected by a HYUNDAI authorised
repairer.
No restart
Low urea solution level
Urea system failure
(= no fuel injection)
Incorrect urea detected
(= abnormal urea)
Abnormal urea-solution consumption
(= post treatment failure)
Clearing the vehicle-restarting restriction (if equipped)

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7
Maintenance
Adding the urea solution
To refill the urea solution from
the refill hose
1. Press the ignition switch to the
OFF position.
2. Turn the urea solution tank cap in
a counterclockwise direction to
open it.
3. Fully insert the refill hose to add
the ISO 22241-specified urea
solution over 5 litres or above the
mark on the urea solution tank.
❈When "Refill Urea tank or vehicle
will not start" message is dis-
played, fill up urea at least 6 litres.❈Pay the great caution not to add
the urea solution into the fuel
tank. If not, it surely applies
adverse impact on the vehicle
performance, causing various
malfunctions.
❈Never use the urea solution mix-
ture with additives or water. It
may allow foreign substances to
enter the urea solution tank. If
so, it surely applies adverse
impact on the vehicle perform-
ance, causing various malfunc-
tions.
❈Use only the ISO 22241-speci-
fied urea solution. Any unautho-
rised urea solution surely
applies adverse impacts on the
vehicle performance, causing
various malfunctions.
4. Turn the urea solution tank cap in
a clockwise direction to securely
close it.
To refill the urea solution from
the refill bottle
1. Press the ignition switch to the
OFF position
2. Turn the urea solution tank cap in
a counterclockwise direction to
open it.
3. Add the ISO 22241-specified urea
solution over 5 litres or above the
mark on the urea solution tank.
❈Pay the great caution not to add
the urea solution into the fuel
tank. If not, it surely applies
adverse impact on the vehicle
performance, causing various
malfunctions.
❈Pay the great caution not to
over-fill the (completely) fulfilled
urea solution tank by force whilst
refilling the urea solution from
the refill bottle. The over-filled
urea solution tank will be
expanded when it becomes
frozen and this can cause a seri-
ous malfunction of the urea solu-
tion tank or urea solution sys-
tem.
OTM048419