2011 Hyundai Equus Air filter

Maintenance
16 7
Air cleaner filter
A Genuine HYUNDAI air cleaner filter is
recommended when the filter is
replaced.
Spark plugs
Make sure to install new spark plugs of
the correct heat range.
Valve clearance (3.8L)
Inspect excessive valve noise and/or
engine vibration and adjust if necessary.
An authorized HYUNDAI dealer should
perform the operation.
Cooling system
Check cooling system components, such
as radiator, coolant reservoir, hoses and
connections for leakage and damage.
Replace any damaged parts.
Coolant
The coolant should be changed at the
intervals specified in the maintenance
schedule.
Automatic transmission fluid
Automatic transmission fluid should not
be checked under normal usage condi-
tions.
But in severe conditions, the fluid should
be changed at an authorized HYUNDAI
dealer in accordance to the scheduled
maintenance at the beginning of this
chapter.
✽NOTICE
Automatic transmission fluid color is
basically red.
As the vehicle is driven, the automatic
transmission fluid will begin to look
darker.
It is normal condition and you should
not judge the need to replace the fluid
based upon the changed color.
CAUTION
The use of a non-specified fluid
could result in transmission mal-
function and failure.
Use only specified automatic trans-
mission fluid. (Refer to
“Recommended lubricants and
capacities” in section 8.)

725
Maintenance
AIR CLEANER
Filter replacement
It must be replaced when necessary, and
should not be washed.
You can clean the filter when inspecting
the air cleaner element.
Clean the filter by using compressed air.
Main air cleaner
1. Push the top of the fastener to remove
the cover.
2. Loosen the air cleaner cover attaching
clips and open the cover.
3. Wipe the inside of the air cleaner.
OBH078010L
OBH078010N
3.8L
4.6L/5.0LOBH078011
OBH078011N
3.8L
4.6L/5.0LOVI079117L

Maintenance
26 7
4. Replace the air cleaner filter.
5. Lock the cover with the cover attaching
clips.Chamber air cleaner (if equipped)
1. Loosen the air cleaner cover attaching
clips and open the cover.2. Replace the air cleaner filter after
pulling up the locking tab (1).
3. Lock the cover with the cover attaching
clips.
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727
Maintenance
Replace the filter according to the
Maintenance Schedule.
If the vehicle is operated in extremely
dusty or sandy areas, replace the
element more often than the usual
recommended intervals. (Refer to
“Maintenance under severe usage condi-
tions” in this section.)
CAUTION
• Do not drive with the air cleaner
removed; this will result in exces-
sive engine wear.
• When removing the air cleaner fil-
ter, be careful that dust or dirt
does not enter the air intake, or
damage may result.
• Use a HYUNDAI genuine part. Use
of non-genuine parts could dam-
age the air flow sensor.
• When you clean the filter, use the
compressed air and blow the air
from the clean side to the dirty
side.

Maintenance
28 7
CLIMATE CONTROL AIR FILTER (IF EQUIPPED)
Filter inspection
The climate control air filter should be
replaced according to the Maintenance
Schedule. If the vehicle is operated in
severely air-polluted cities or on dusty
rough roads for a long period, it should
be inspected more frequently and
replaced earlier. When you replace the
climate control air filter, replace it per-
forming the following procedure, and be
careful to avoid damaging other compo-
nents.
Filter replacement
1. With the glove box open, remove the
stoppers on both sides to allow the
glove box to hang freely on the hinges.2. Remove the cylinder at the left of the
glove box.
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729
Maintenance
3. Remove the climate control air filter
case pulling out both sides of the
cover.4. Replace the climate control air filter.
5. Reassemble in the reverse order of
disassembly.
✽NOTICE
When replacing the climate control air
filter, install it properly. Otherwise, the
system may produce noise and the effec-
tiveness of the filter may be reduced.
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773
Maintenance
EMISSION CONTROL SYSTEM (IF EQUIPPED)
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 rec-
ommended that you have your car
inspected and maintained by an author-
ized HYUNDAI dealer in accordance with
the maintenance schedule in this manu-
al.Caution for the Inspection and
Maintenance Test (With Electronic
Stability Program (ESP) system)
• To prevent the vehicle from misfir-
ing during dynamometer testing,
turn the Electronic Stability
Program (ESP) system off by press-
ing the ESP switch.
• After dynamometer testing is com-
pleted, turn the ESP system back on
by pressing the ESP switch again.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.
2. Evaporative emission control
system
The Evaporative Emission Control
System is designed to prevent fuel
vapors from escaping into the atmos-
phere.