Hyundai Equus 2010 Owner's Manual

Maintenance
20
7
Changing the coolant
Have coolant changed by an authorized
HYUNDAI dealer according to theMaintenance Schedule at the beginningof this section.
WARNING - Radiator cap
Do not remove the radiator cap when the engine and radiator are
hot. Scalding hot coolant and
steam may blow out under pres-
sure causing serious injury.
CAUTION
Put a thick cloth around the radiator cap before refilling the coolant in
order to prevent the coolant fromoverflowing into engine parts suchas the generator.
WARNING - Coolant
Do not use radiator coolant or antifreeze in the washer fluid
reservoir.
Radiator coolant can severely obscure visibility when sprayed
on the windshield and may cause
loss of vehicle control or damage
to paint and body trim.
OBH078005
OBH078005N
3.8L
4.6L

721
Maintenance
BRAKE FLUID
Checking the brake fluid level
Check the fluid level in the reservoir peri-
odically. The fluid level should be
between MAX and MIN marks on the
side of the reservoir. Before removing the reservoir cap and
adding brake fluid, clean the area around
the reservoir cap thoroughly to prevent
brake fluid contamination.
If the level is low, add fluid to the MAX
level. The level will fall with accumulated
mileage. This is a normal condition asso-
ciated with the wear of the brake linings.
If the fluid level is excessively low, have
the brake system checked by an author-
ized HYUNDAI dealer.
Use only the specified brake fluid. (Refer
to “Recommended lubricants or capaci- ties” in section 8.)
Never mix different types of fluid.
WARNING - Brake fluid
When changing and adding brake
fluid, handle it carefully. Do not let it
come in contact with your eyes. Ifbrake fluid should come in contact
with your eyes, immediately flush
them with a large quantity of fresh
tap water. Have your eyes examined
by a doctor as soon as possible.
WARNING - Loss of brake fluid
In the event the brake system
requires frequent additions of fluid,
the vehicle should be inspected by
an authorized HYUNDAI dealer.
CAUTION
Do not allow brake fluid to contact the vehicle's body paint, as paintdamage will result. Brake fluid, which has been exposed to open airfor an extended time should never
be used as its quality cannot be guaranteed. It should be disposedof properly. Don't put in the wrong kind of fluid. A few drops of miner-
al-based oil, such as engine oil, in your brake system can damagebrake system parts.
OBH078006L
OBH078006N
3.8L
4.6L

Maintenance
22
7
POWER STEERING FLUID
Checking the power steering fluid
level
With the vehicle on level ground, check
the fluid level in the power steering reser-
voir periodically. The fluid should be
between MAX and MIN marks on the
side of the gauge at the normal tempera-
ture. Before adding power steering fluid, thor-oughly clean the area around the reser-
voir cap to prevent power steering fluidcontamination.
If the level is low, add fluid to the MAX
level.
In the event the power steering system requires frequent addition of fluid, the
vehicle should be inspected by an
authorized HYUNDAI dealer.
Use only the specified power steering
fluid. (Refer to "Recommended lubricants
or capacities" in section 8.)
Checking the power steering hose
Check the connections for oil leaks, dam-
age and twists in the power steering
hose before driving.
CAUTION
To avoid damage to the power steering water pump unit, do not
operate the vehicle for prolonged periods with a low power steeringfluid level.
Never start the engine when the reservoir tank is empty.
When adding fluid, be careful that dirt does not get into the tank.
Too little fluid can result in increased steering effort and/ornoise from the power steering
system.
The use of the non-specified fluid could reduce the effectiveness ofthe power steering system andcause damage to it.
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723
Maintenance
Checking the washer fluid level
The reservoir is translucent so that you
can check the level with a quick visualinspection.
Check the fluid level in the washer fluid
reservoir and add fluid if necessary. Plain
water may be used if washer fluid is not
available. However, use washer solvent
with antifreeze characteristics in cold cli-
mates to prevent freezing.
WASHER FLUID
WARNING -Coolant
Do not use radiator coolant or antifreeze in the washer fluid
reservoir.
Radiator coolant can severely obscure visibility when sprayed
on the windshield and may cause
loss of vehicle control or damage
to paint and body trim.
Windshield Washer fluid agents contain some amounts of alcohol
and can be flammable under cer-
tain circumstances. Do not allowsparks or flame to contact thewasher fluid or the washer fluid
reservoir. Damage to the vehicle
or occupants could occur.
Windshield washer fluid is poi- sonous to humans and animals.
Do not drink and avoid contacting
windshield washer fluid. Serious
injury or death could occur.
OBH078008

Maintenance
24
7
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. 1. Push the top of the fastener to remove
the cover.
2. Loosen the air cleaner cover attachingclips and open the cover.
3. Wipe the inside of the air cleaner.
OBH078010L
OBH078010N
3.8L
4.6LOBH078011
OBH078011N
3.8L
4.6LOVI079117L

725
Maintenance
4. Replace the air cleaner filter.
5. Lock the cover with the cover attachingclips.
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.)
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 shouldbe 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.
OBH078013
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 dirtdoes 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.
CLIMATE CONTROL AIR FIL-
TER (IF EQUIPPED)

Maintenance
26
7
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. 3. Remove the climate control air filter
case pulling out both sides of the
cover.
OVI079015OBH078016OVI079016

727
Maintenance
4. Replace the climate control air filter.
5. Reassemble in the reverse order ofdisassembly.
✽✽ 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.
Blade inspection
✽✽ NOTICE
Commercial hot waxes applied by auto-
matic car washes have been known to
make the windshield difficult to clean.
Contamination of either the windshield or
the wiper blades with foreign matter can
reduce the effectiveness of the wind-
shield wipers. Common sources of con-
tamination are insects, tree sap, and hot
wax treatments used by some commer-
cial car washes. If the blades are not wip-
ing properly, clean both the window and
the blades with a good cleaner or mild
detergent, and rinse thoroughly with
clean water.
OBH078017 WIPER BLADESCAUTION
To prevent damage to the wiper
blades, do not use gasoline,kerosene, paint thinner, or other
solvents on or near them.
1JBA5122

Maintenance
28
7
Blade replacement When the wipers no longer clean ade-
quately, the blades may be worn or
cracked, and require replacement.
Front windshield wiper blade
For your convenience, move the wind-
shield wiper blades to the service posi-
tion as follows;
1. Turn the engine start/stop button off.
2. Within 20 seconds move the wiper
switch to the single wiping position
(MIST/ ) and hold the switch until the
wiper arm is in the fully up position. 3. Raise the wiper arm.
CAUTION
To prevent damage to the wiper
arms or other components, do notattempt to move the wipers manual-
ly.
CAUTION
The use of a non-specified wiperblade could result in wiper malfunc-tion and failure.
OVI079041OBH078042
CAUTION
Do not allow the wiper arm to fallagainst the windshield, since it may chip or crack the windshield.
/

729
Maintenance
4. Press the button and pull the bladeassembly forward. 5. Install the blade assembly in the
reverse order of removal.
6. Return the wiper arm on the wind- shield.
7. Turn the ignition switch to the ON posi- tion.
8. Move the wiper switch to any position and then to the OFF position.
OBH078043OBH078044