2016 Hyundai Equus air condition

7-22
Maintenance
MAINTENANCE UNDER SEVERE USAGE CONDITIONS
The following maintenance procedures must be performed more frequently,
when driving under severe conditions. Refer to the below chart for the appro-
priate maintenance schedule.
R : Replace
I : Inspect, and, if necessary, clean, adjust, repair or replace.
SEVERE DRIVING CONDITIONS
A - Repeatedly driving a short distance of less than 5 miles (8 km) at a normal temperature or of lessthan 10 miles (16 km) at a freezing temperature
B - Extensively idling or slowly driving for a long distance
C - Driving on a rough, dusty, muddy, unpaved, graveled or salt-spread roads
D - Driving in areas where salt or other corrosive materials are abundant or at a freezing temperature
E - Driving in sandy areas
F - Driving in the heavy traffic area at a temperature over 90°F (32°C)
G- Driving on a slope or a mountainous area
H - Towing a trailer, or using a camper or roof rack
I - Driving as a patrol car, taxi, other commercial usages or vehicle towing
J - Driving at a speed over 106 mph (170 km/h)
K - Frequent stopping and starting
MAINTENANCE ITEMMAINTENANCE
OPERATIONMAINTENANCE INTERVALSDRIVING
CONDITION
ENGINE OIL AND FILTERREVERY 3,750 MILES
(6,000 KM) OR 6 MONTHSA, B, C, D, E,
F, G, H, I, J, K
AIR CLEANER FILTERIMORE FREQUENTLYC, E
SPARK PLUGSRMORE FREQUENTLYA, B, H, I, K
AUTOMATIC TRANSMISSION
FLUIDREVERY 60,000 MILES
(96,000 KM) A, C, D, E, F,
G, H, I
FRONT BRAKE DISC/PADS,
CALIPERSIMORE FREQUENTLYC, D, G, H
REAR BRAKE DISC/PADSIMORE FREQUENTLYC, D, G, H
PARKING BRAKEIMORE FREQUENTLYC, D, G, H
STEERING GEAR BOX,
LINKAGE & BOOTS/
LOWER ARM BALL JOINT,
UPPER ARM BALL JOINT
IMORE FREQUENTLYC, D, E, F, G,
H, I
DRIVE SHAFTS AND BOOTSIEVERY 7,500 MILES
(12,000 KM) OR 6 MONTHSC, D, E, F, G,
H, I, J
REAR DIFFERENTIAL OILREVERY 80,000 MILES
(128,000 KM)C, G, H, I, J
CLIMATE CONTROL
AIR FILTER (FOR EVAPORA-
TOR AND BLOWER UNIT)RMORE FREQUENTLYC, E
PROPELLER SHAFTIEVERY 7,500 MILES
(12,000 KM) OR 6 MONTHSC, E

7-23
Maintenance07
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Engine oil and filter
The engine oil and filter should be
changed at the interval, as specified
in the maintenance schedule. After
driving in severe conditions, you
should more frequently change oil
and filters.
Drive belts
Inspect all belts for any cut, crack,
excessive wear-out, or oil saturation.
If necessary, replace it.
Fuel filter
A clogged filter may limit the acceler-
ating function, damage the emission
system and cause other problems,
such as hard starting. When an
excessive amount of foreign sub-
stances accumulate in the fuel tank,
you should more frequently replace
the filter. After installing a new filter,
run the engine for several minutes,
and check for any leakage from the
connections. Fuel filters should be
installed by an authorized EQUUS
dealer.
Fuel lines, fuel hoses and con-
nections
Check the fuel lines, fuel hoses and
connections for any leakage and
damage. Immediately have an
authorized EQUUS dealer replace
any damaged or leaking parts.
Vapor hose and fuel filler cap
Check the fuel lines, fuel hoses and
connections for any leakage and
damage. Immediately have an
authorized EQUUS dealer replace
any damaged or leaking parts.
Air cleaner filter
An authorized HYUNDAI air cleaner
filter is recommended.
Spark plugs
Make sure to install new spark plugs
of the correct heat range.
Cooling system
Check the cooling system compo-
nents, such as radiator, coolant
reservoir, hoses and connections, for
any leakage and damage. If neces-
sary, replace any damaged parts.
Coolant
The coolant should be changed at
the interval, as specified in the main-
tenance schedule.
Automatic transmission fluid
You do not need to check the auto-
matic transmission fluid, when driv-
ing under normal conditions.
However, after driving in severe con-
ditions, the fluid should be changed
by an authorized EQUUS dealer in
accordance with the maintenance
schedule, as specified in the begin-
ning of this chapter.
Information
The original color of the automatic
transmission fluid is red. However, as
you drive the vehicle, the color will
become darker. This is normal, and
you do not need to change the fluid
due to the changed color.
i

7-24
Maintenance
The use of an unauthorized fluid
may result in transmission mal-
function and failure. Use only the
authorized automatic transmis-
sion fluid. (Refer to “Recommended
lubricants and capacities” in the
chapter 8.)
Brake hoses and lines
Confirm the proper installation, and
check for any frictions, cracks, dete-
rioration and leakage. If necessary,
immediately replace any deteriorated
or damaged parts.
Brake fluid
Check the brake fluid level. The level
should be between “MIN” and “MAX”
marks on the reservoir. Use only the
hydraulic brake fluid, which meet the
requirements of the DOT3/DOT4
specifications.
Brake discs, pads, calipers
and rotors
Check the pads and the disc for any
excessive wear-out, and inspect
calipers for any fluid leakage.
Exhaust pipe and muffler
Inspect the exhaust pipes, muffler
and hangers for any cracks, deterio-
rations, or damages. Start the
engine, and listen carefully for any
gas leaking noise. If necessary, tight-
en connections or replace the dam-
aged parts.
Suspension mounting bolts
Check the suspension connections
for any looseness or damage. If nec-
essary, retighten the bolt to the spec-
ified torque.
Steering gear box, linkage &
boots/lower arm ball joint
After stopping the vehicle and turn-
ing off the engine, confirm the steer-
ing locking (tightening).
Check the bends for any linkage or
damage. Check the dust boots and
ball joints for any deterioration,
cracks, or damage. If necessary,
replace the damaged parts.
Power steering pump, belt and
hoses
Check the power steering pump and
hoses for any leakage or damage. If
necessary, immediately replace any
damaged or leaking parts. Inspect
the power steering belt (or drive belt)
for any cuts, cracks, excessive wear-
out, oil saturation or looseness. If
necessary, replace or adjust the
damaged part.
Drive shafts and boots
Check the drive shafts, boots and
clamps for any cracks, deterioration,
or damage. If necessary, replace or
grease the damaged part.
Air conditioning refrigerant
Check the air conditioning lines and
connections for any leakage or dam-
age.
NOTICE

7-34
Maintenance
4. Replace the air cleaner filter.
5. Lock the cover with clips.
Chamber air cleaner
1. Loosen the clips and open the cover. 2. Pull up the locking tab (1) and
replace the air cleaner filter.
3. Lock the cover with the clips.
Replace the filter in accordance with
the Maintenance Schedule.
When the vehicle drives in extremely dusty or sandy areas, replace the fil-ter more often than the recommend-ed interval. (Refer to “Maintenanceunder severe usage conditions” inthis chapter.)
Do not drive without the air cleaner filter. This may exces-
sively wear out the engine.
When replacing the air cleaner filter, be careful that dust or dirt
does not enter the air intake.
Otherwise, this may damage the
vehicle.
Use only an authorized HYUNDAI genuine part. Use of
unauthorized parts may damage
the air flow sensor.
NOTICE
OVI075012N
OVI075013N
OVI075014N

7-50
Maintenance
4. Tire ply composition andmaterial
There are a number of layers or plies
of rubber-coated fabrics in the tire.
Tire manufacturers indicate the
materials on the tire, such as steel,
nylon and polyester. The letter "R"
means radial ply construction; the
letter "D" means diagonal or bias ply
construction; and the letter "B"
means belted-bias ply construction.
5. Maximum permissible infla-tion pressure
This number indicates the air pres-
sure limit of the tire. Do not inflate the
tire over the maximum pressure.
Refer to "Tire and Loading
Information Label" for the recom-
mended inflation pressure.
6. Maximum load rating
This number indicates the maximum
loading capacity in kilograms or in
pounds that a tire can carry. When
replacing the tires, always use the
tire of the same load rating as the
original one.
7. Uniform tire quality grading
Quality grades can be found where
applicable on the tire sidewall
between tread shoulder and maxi-
mum section width.
For example: TREAD wear 200
TRACTION AA
TEMPERATURE A
Tread wear
The tread wear grade is a compara-
tive rating based on a tire wear-out
rating, which is recorded while being
tested under a controlled condition
on a test course specified by a gov-
ernment. For example, a tire, of
which the tread wear grade is 150,
would wear out one-and-a half times
(1½) faster than a tire graded 100.
The actual tread wear rating
depends on the actual driving condi-
tions. In addition, the actual tread
wear rating may significantly vary
from the tread wear grade due to a
lot of variations, such as driving
habits, maintenance conditions, road
characteristics and climates.
These grades are written on the tire
side wall of a passenger vehicle. The
available tires with the standard or
optional equipment may vary with
respect to this grade.
Traction - AA, A, B & C
The traction grades, from the highest
to the lowest, are AA, A, B and C.
Those grades represent the stopping
performance level of a tire measured
on a wet test surface specified by the
government under a controlled con-
dition. A tire marked with the letter, C,
may have poor traction.
The traction grade of a tire is
based on a braking traction test,
while driving straight ahead. The
test does not include accelerat-
ing, cornering, hydroplaning, or
towing situations.
WARNING

7-86
Maintenance
Corrosion protection
Protecting your vehicle from corro-
sion
HYUNDAI produces a vehicle of the
highest quality by using the most
advanced design and construction
practices to combat corrosion.
However, this is only one part of anti-
corrosion resistance practices. To
achieve a long-term corrosion resist-
ance of your vehicle, your coopera-
tion and assistance are required.
Common causes of corrosion
The followings are the most common
causes of corrosion:
accumulate across the vehicle
underbody.
to corrosion due to the removal of
paint or protective coat, possibly by
a stone, gravel, abrasion, minor
scrape, or dent.
High-corrosion areas
In an area, where your vehicle is reg-
ularly exposed to corrosive materi-
als, an anti-corrosion measure is
particularly important. Some of the
common causes of instant vehicle
corrosion are road salts, dust, chem-
icals, salty air and industrial pollu-
tants.
Moisture breeds corrosion
Moisture creates a condition in which
corrosion is most likely to occur. For
example, a corrosion process is
accelerated by high humidity, partic-
ularly when a temperature is just
above the freezing point. In such
condition, the vehicle surface is kept
in contact with moisture that is slow
to evaporate.
Mud is particularly corrosive
because it is slow to dry and holds
moisture in contact with the vehicle.
Although the mud appears to be dry,
it may still retain some moisture
inside and promote corrosion.
A high temperature also accelerates
a corrosion process, when the air is
unventilated, and when the moisture
pervades. For all these reasons, it is
particularly important to keep your
vehicle clean, and remove mud or
any other accumulated substances.
This applies not only to the visible
surfaces but particularly to the vehi-
cle underbody.
To help prevent corrosion
You can prevent corrosion from the
start by following the below precau-
tions.

7-90
Maintenance
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 to prevent
the evaporated fuel from getting into
the engine. After warming up the
engine in a normal driving condition,
the PCSV opens to introduce evapo-
rated fuel to the engine.
3. Exhaust emission control system
The Exhaust Emission Control
System is highly effective in control-
ling exhaust emissions, while main-
taining good vehicle performance.
Vehicle modifications
This vehicle should not be modi-
fied. Modification of your vehicle
may affect its driving performance,
safety or durability. This even may
violate safety and emissions regu-
lations of the government.
In addition, damage or perform-
ance problems, which is resulted in
due to any modification, may not
be covered by a warranty.
Use of unauthorized electric devices may cause abnormal vehi-
cle operation, wire damage, bat-
tery discharge and a fire.
Be careful not to damage your
vehicle by using an unauthorized
electric device.
Engine exhaust gas precautions (carbon monoxide)
Carbon monoxide is present in
exhaust fumes. Therefore, when
you smell exhaust fumes of any
kinds, inside your vehicle, immedi-
ately have it inspected and
repaired. When you suspect
exhaust fume emission into your
vehicle, drive the vehicle only when
all windows are fully opened.
Immediately have your vehicle
checked and repaired immediately.
- Exhaust
Engine exhaust gases contain
carbon monoxide (CO). Though
colorless and odorless, it is
dangerous and is lethal, if
inhaled. Follow the instructions
on this page to avoid CO poi-
soning.
WARNING
Engine exhaust and a wide vari-
ety of automobile components
and parts, including compo-
nents found in the interior fur-
nishings in a vehicle, contain or
emit chemicals known to the
State of California to cause can-
cer and birth defects and repro-
ductive harm. In addition, cer-
tain fluids contained in vehicles
and certain products of compo-
nent wear contain or emit chem-
icals known to the State of
California to cause cancer and
birth defects or other reproduc-
tive harm.
CALIFORNIA PROPOSI- TION 65 WARNING

7-91
Maintenance07
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, with the engine running,
for more than a short period of time,
adjust the ventilation system (as
needed) to draw the outside air into
the vehicle.
Never sit inside a parked or stopped vehicle for any extended period of
time, while the engine is running.
When the engine stalls or fails to start, excessive attempts to restart
the engine may damage the emis-
sion control system.
Operating precautions for cat-alytic converters (if equipped)
Your vehicle is equipped with a cat-
alytic converter emission control
device.
Therefore, you must observe the fol-
lowing precautions:
Use only the UNLEADED FUEL for
gasoline engines.
Do not drive the vehicle when there are signs of engine malfunction,
such as misfiring or noticeable
under-performing.
Do not misuse or abuse the engine. Examples of the engine
misusage are coasting and
descending on a steep slope with
the ignition in the OFF position.
Do not idle the engine at a high speed for an extended period of
time (5 minutes or more).
Do not modify any part of the engine or the emission control sys-
tem. All inspections and adjust-
ments must be done by an author-
ized EQUUS dealer.
Avoid driving with a low level of fuels. When your vehicle runs out
of gasoline, it may misfire the
engine or result in excessive load-
ing of the catalytic converter.
Failure to observe these precautions
may damage the catalytic converter
as well as your vehicle. Additionally,
such actions may void your war-
ranties.
- Fire
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 grass, vegetation, paper,
leaves, etc.
The exhaust system and cat- alytic system are very hot
while the engine is running or
immediately after the engine
is turned off. Keep away from
the exhaust system and cat-
alytic; you may get burned.
Also, do not remove the heat
sink around the exhaust sys-
tem, do not seal the bottom of
the vehicle or do not coat the
vehicle for corrosion control.
It may present a fire risk under
certain conditions.
WARNING