Maintenance
74 7
EMISSION CONTROL SYSTEM (IF EQUIPPED)
G270000AEN
The emission control system of your
vehicle is covered by a written limited
warranty. Please see the warranty infor-
mation contained in the Service Passport
in your vehicle.
Your vehicle is equipped with an emis-
sion control system to meet all applicable
emission regulations.
There are three emission control sys-
tems, as follows.
(1) Crankcase emission control system
(2) Evaporative emission control system
(3) Exhaust emission control system
In order to assure the proper function of
the emission control systems, it is recom-
mended that you have your car inspected
and maintained by an authorized
HYUNDAI dealer in accordance with the
maintenance schedule in this manual.Caution for the Inspection and
Maintenance Test (With Electronic
Stability Control (ESC) system)
• To prevent the vehicle from misfiring
during dynamometer testing, turn
the Electronic Stability Control
(ESC) system off by pressing the
ESC switch.
• After dynamometer testing is com-
pleted, turn the ESC system back on
by pressing the ESC switch again.
G270100AUN
1. Crankcase emission control
system
The positive crankcase ventilation sys-
tem is employed to prevent air pollution
caused by blow-by gases being emitted
from the crankcase. This system supplies
fresh filtered air to the crankcase through
the air intake hose. Inside the crankcase,
the fresh air mixes with blow-by gases,
which then pass through the PCV valve
into the induction system.
G270200AEN
2. Evaporative emission control
system
The Evaporative Emission Control System
is designed to prevent fuel vapors from
escaping into the atmosphere.
G270201AUN
Canister
Fuel vapors generated inside the fuel
tank are absorbed and stored in the
onboard canister. When the engine is
running, the fuel vapors absorbed in the
canister are drawn into the surge tank
through the purge control solenoid valve.
G270202AUN
Purge Control Solenoid Valve (PCSV)
The purge control solenoid valve is con-
trolled by the Engine Control Module
(ECM); when the engine coolant temper-
ature is low during idling, the PCSV clos-
es so that evaporated 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.
Maintenance
84 7
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 an
authorized HYUNDAI dealer.
• 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. while main-
taining the vehicle). Its purity cannot be
guaranteed. Always add the new urea
solution.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.WARNING
• When opening the urea solution
tank cap at high outside tempera-
tures, ammonia vapors may
escape. Ammonia vapors 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 vapors. 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 ven-
tilation. When the bottle of urea
solution container is opened, pun-
gent smelling fumes may escape.
(Continued)
