2016 Hyundai Equus Owner's Manual

7-28
Maintenance
Check all the cooling system hoses
and heater hoses. If necessary,
replace any swollen or deteriorated
one. The coolant level should
be between F and L marks
on the coolant reservoir,
when the engine is cool.
When the coolant level is low, add
distilled (deionized) water. Bring up
the level to F, but do not overfill.
When frequent additions are
required, have an authorized
EQUUS dealer inspect your cooling
system.
Recommended engine coolant
When adding coolant, use the deionized water, distilled water or
soft water. Never add hard water in
the coolant. An improper coolant
mixture may result in serious mal-
function or engine damage.
The engine parts are made of alu- minum and must be protected by
an ethyleneglycol-based coolant
from any corrosion and freezing.
DO NOT USE alcohol or methanol coolant, nor mix them with the
authorized coolant. Do not use the solution of which
the antifreeze portion is above
60% or below 35%. This may
reduce the solution effects.
Mix the water and antifreeze in the half-and-half ratio. This solution will
work in most situations.
For the proper mixture ratio, refer to
the following table.
Information
The half-and-half ratio solution of
water and antifreeze is effective at a
temperature of -31°F (-35°C) and
higher.
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OVI075004N
5°F (-15°C) 35 65
-13°F (-25°C) 40 60
-31°F (-35°C) 50 50
-49°F (-45°C) 60 40
Ambient
Temperature Mixture Percentage (volume)
Antifreeze Water

7-29
Maintenance07
Changing the coolant
Have coolant changed by an author-
ized EQUUS dealer in accordance
with the Maintenance Schedule, as
specified in the beginning of this
chapter.
Cover a thick cloth around the
radiator cap, before refilling the
coolant, in order to prevent the
coolant spillage over the engine
parts, such as the generator.
NOTICE
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Radiator cap
Do not remove the radiator cap,
when the engine and radiator
are hot. Hot coolant and steam
may blow out under pressure
and burn your skin, causing a
serious injury.
WARNING
- Coolant
Do not fill the radiator coolant or antifreeze in the washer
fluid reservoir.
Radiator coolant may obscure your visibility, when sprayed
on the windshield. This may
cause loss of vehicle control,
or damage the paint and body
trim.
WARNING

7-30
Maintenance
Checking the brake fluid level
Check the fluid level in the reservoir
on a regular basis. The fluid level
should be between MAX and MIN
marks on the reservoir.
Before opening the reservoir cap to
add brake fluid, clean the area
around the reservoir cap to prevent
brake fluid from being contaminated.
When the level is low, add fluid near
to the MAX level. The level decreas-
es, as the vehicle drives. This is a
normal, associated with the wear-out
of the brake linings. When the fluid
level is excessively low, have the
brake system checked by an author-
ized EQUUS dealer.
Use only the authorized brake fluid.(Refer to “Recommended lubricantsor capacities” in the chapter 8.)
Never mix different types of fluid.
Do not spill the brake fluid over
the body paint. This may damage
the paint. The brake fluid, which is
exposed in the air for an extended
period of time, should not be
used, as its quality cannot be
guaranteed. It should be disposed
in a proper manner. Do not add
unauthorized fluid. A few drops of
mineral-based oil, such as engine
oil, in your brake system may
damage brake system parts.
NOTICE
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- Loss of brake fluid
When the brake system
requires frequent fluid addition,
the vehicle should be inspected
by an authorized EQUUS dealer.
WARNING
- Brake fluid
When changing and adding
brake fluid, pay special atten-
tion to it. Before washing your
hands, do not touch your eyes.
When the brake fluid should
come in contact with your eyes,
immediately wash them with
fresh tap water. Immediately
have your eyes examined by a
doctor.
WARNING
OVI075006N

7-31
Maintenance07
Checking the power steering
fluid level
Check the fluid level in the power
steering reservoir on a regular basis,
after parking on a level ground. The
fluid level should be between MAX
and MIN marks on the gauge at a
normal temperature.
Before adding power steering fluid,
clean the area around the reservoir
cap to prevent power steering fluid
contamination.
When the level is low, add the fluid
near to the MAX level.
When the power steering system
requires frequent fluid addition, have
the vehicle inspected by an author-
ized EQUUS dealer. To avoid damage to the power
steering pump, do not operate
the vehicle for a prolonged peri-
od of time, when the power
steering fluid level is low.
Never start the engine when the reservoir tank is empty.
Pay special attention while adding the fluid. So, any dirt
does not get into the tank.
Low level of the fluid may increase the steering effort and
noise from the power steering
system.
The use of the unauthorized fluid may reduce the effects of
the power steering system and
damage it.
Use only the authorized power steer-ing fluid. (Refer to "Recommendedlubricants or capacities" in the chap-ter 8.)
Checking the power steering
hose
Check the connections for any oil
leakage, damages and twists, before
driving.
NOTICE
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F
F L
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7-32
Maintenance
Checking the washer fluid
level
The washer fluid reservoir is trans-
parent, so that you can visually
check the washer fluid level.
If necessary, add the washer fluid.
Plain water may be used, when the
washer fluid is unavailable. However,
you may add antifreezing solvents to
the fluid to prevent it from freezing,
before driving at a cold temperature.
W WA
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F
F L
LU
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- Coolant
Do not add the radiator
coolant or the antifreeze in
the washer fluid reservoir.
obscures your visibility, when
sprayed on the windshield.
This may cause loss of vehi-
cle control, or damage the
paint and body trim.
(Continued)
(Continued)
The washer fluid containsome amounts of alcohol.
Thus, it is flammable under
certain circumstances. Keep
the washer fluid or the reser-
voir away from any sparks or
flames. This may damage the
vehicle, or injure the occu-
pants.
to humans and animals. Do
not drink and avoid contact-
ing with the washer fluid. This
may cause a serious injury or
death.
WARNING

7-33
Maintenance07
Filter replacement
It must be replaced, if necessary,
and should not be washed.
After checking the air cleaner ele-
ment, clean the filter.
Clean the filter by blowing the com-
pressed air.
Main air cleaner
1. Press the top of the fastener toremove the cover.
2. Loosen the clips and open the cover.
3. Clean the inside of the air cleaner.
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■ Main air cleaner
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■ Chamber air cleaner
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OVI075011N

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
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OVI075013N
OVI075014N

7-35
Maintenance07
Filter inspection
The climate control air filter should
be replaced every 15,000 miles
(24,000 km). When the vehicle drives
in severely air-polluted cities or on
dusty rough roads for a long period
of time, more frequent filter inspec-
tion and replacement should be
done. When replacing the climate
control air filter, follow the proce-
dures, and be careful not to damage
other components.
Filter replacement
1. Open the glove box, and removethe stoppers on both sides of the
glove box to partially loosen it from
the hinges.
2. Remove the cylinder in the left side of the glove box. 3. Remove the climate control air fil-
ter case by pulling out the both
sides.
4. Replace the climate control air fil- ter.
5. Reassemble the parts in the reverse order.
Information
Install a new climate control air filter
in the correct direction with the arrow
symbol ( ↓ ↓) facing downwards.
Otherwise, the climate control effects
may decrease, possibly with a noise.
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OVI075015N
OVI075016N
OVI075017N
OVI075200K