engine Hyundai Equus 2013 Owner's Manual

Maintenance
18 7
Brake hoses and lines
Visually check for proper installation,
chafing, cracks, deterioration and
any leakage. Replace any deteriorat-
ed or damaged parts immediately.
Brake fluid
Check brake fluid level in the brake
fluid reservoir. The level should be
between “MIN” and “MAX” marks on
the side of the reservoir. Use only
hydraulic brake fluid conforming to
DOT 3 or DOT 4 specification.
Steering gear box, linkage &
boots/lower arm ball joint
With the vehicle stopped and engine
off, check for excessive free-play in
the steering wheel.
Check the linkage for bends or dam-
age. Check the dust boots and ball
joints for deterioration, cracks, or
damage. Replace any damaged
parts.
Power steering pump, belt and
hoses
Check the power steering pump and
hoses for leakage and damage.
Replace any damaged or leaking
parts immediately. Inspect the power
steering belt (or drive belt) for evi-
dence of cuts, cracks, excessive
wear, oiliness and proper tension.
Replace or adjust it if necessary.
Drive shafts and boots
Check the drive shafts, boots and
clamps for cracks, deterioration, or
damage. Replace any damaged
parts and, if necessary, repack the
grease.
Air conditioning refrigerant
(if equipped)
Check the air conditioning lines and
connections for leakage and dam-
age.
Brake discs, pads, calipers
and rotors
Check the pads for excessive wear,
discs for run out and wear, and
calipers for fluid leakage.
For more information on checking
the pads or lining wear limit, refer to
the Hyundai web site.
(http://brakeman
ual.hmc.co.kr)
Suspension mounting bolts
Check the suspension connections
for looseness or damage. Retighten
to the specified torque.

719
Maintenance
ENGINE OIL
Checking the engine oil level
1.Be sure the vehicle is on level
ground.
2.Start the engine and allow it to
reach normal operating tempera-
ture.3.Turn the engine off and wait for a
few minutes (about 5 minutes) for
the oil to return to the oil pan.
4.Pull the dipstick out, wipe it clean,
and re-insert it fully.
5.Pull the dipstick out again and
check the level. The level should be
between F and L.
WARNING- Radiator
hose
Be very careful not to touch the
radiator hose when checking or
adding the engine oil as it may
be hot enough to burn you.
OBH071002
OBH071002N
3.8L
5.0L
CAUTION
• Do not overfill with engine oil.
Engine damage may result.
• Do not spill engine oil, when
adding or changing engine oil.
If you drop the engine oil on
the engine room, wipe it off
immediately.
• When you wipe the oil level
gauge, you should wipe it with
a clean cloth. When mixed
with debris, it can cause
engine damage.

Maintenance
20 7
If it is near or at L, add enough oil to
bring the level to F.Do not overfill.
Use a funnel to help prevent oil from
being spilled on engine components.
Use only the specified engine oil. (Refer
to “Recommended lubricants and
capacities” in section 8.)
Changing the engine oil and
filter
We recommend that the engine oil
and filter be replaced by an author-
ized HYUNDAI dealer.
WARNING
Used engine oil may cause irri-
tation or cancer of the skin if
left in contact with the skin for
prolonged periods of time. Used
engine oil contains chemicals
that have caused cancer in lab-
oratory animals. Always protect
your skin by washing your
hands thoroughly with soap
and warm water as soon as pos-
sible after handling used oil.
OBH071003
OBH071003N
3.8L
5.0L

721
Maintenance
ENGINE COOLANT
The high-pressure cooling system
has a reservoir filled with year-round
antifreeze coolant. The reservoir is
filled at the factory.
Check the antifreeze protection and
coolant level at least once a year, at
the beginning of the winter season,
and before traveling to a colder cli-
mate.Checking the coolant level
WARNING
Removing radiator
cap
• Never attempt to remove the
radiator cap while the engine
is operating or hot. Doing so
might lead to cooling system
and engine damage and could
result in serious personal
injury from escaping hot
coolant or steam.
• Turn the engine off and wait
until it cools down. Use
extreme care when removing
the radiator cap. Wrap a thick
towel around it, and turn it
counterclockwise slowly to
the first stop. Step back while
the pressure is released from
the cooling system.
(Continued)
(Continued)
When you are sure all the
pressure has been released,
press down on the cap, using
a thick towel, and continue
turning counterclockwise to
remove it.
• Even if the engine is not oper-
ating, do not remove the radi-
ator cap or the drain plug
while the engine and radiator
are hot. Hot coolant and
steam may still blow out
under pressure, causing seri-
ous injury.
CAUTION
• When the engine overheats
from low engine coolant, sud-
denly adding engine coolant
may cause cracks in the
engine. To prevent damage,
add engine coolant slowly in
small quantities.
• Do not drive with no engine
coolant. It may cause water
pump failure and engine
seizure, etc.

Maintenance
22 7
Check the condition and connections
of all cooling system hoses and
heater hoses. Replace any swollen
or deteriorated hoses.
The coolant level should
be filled between F and L
marks on the side of the
coolant reservoir when
the engine is cool.
If the coolant level is low, add enough
distilled (deionized) water. Bring the
level to F, but do not overfill. If fre-
quent additions are required, we rec-
ommend that the system be inspect-
ed by an authorized HYUNDAI deal-
er.
Recommended engine coolant
• When adding coolant, use only
deionized water or soft water for
your vehicle and never mix hard
water in the coolant filled at the fac-
tory. An improper coolant mixture
can result in serious malfunction or
engine damage.
• The engine in your vehicle has alu-
minum engine parts and must be
protected by an ethylene-glycol-
based coolant to prevent corrosion
and freezing.
• DO NOT USE alcohol or methanol
coolant or mix them with the spec-
ified coolant.
• Do not use a solution that contains
more than 60% antifreeze or less
than 35% antifreeze, which would
reduce the effectiveness of the
solution.
OBH071004
WARNING
The electric motor
(cooling fan) is con-
trolled by engine
coolant temperature,
refrigerant pressure
and vehicle speed. It may some-
times operate even when the
engine is not running. Use
extreme caution when working
near the blades of the cooling
fan so that you are not injured
by a rotating fan blades. As the
engine coolant temperature
decreases, the electric motor
will automatically shut off. This
is a normal condition.
If your vehicle is equipped with
GDI, the electric motor (cooling
fan) may operate until you dis-
connect the negative battery
cable.

723
Maintenance
For mixture percentage, refer to the
following table.Changing the coolant
We recommend that the coolant be
replaced by an authorized HYUNDAI
dealer.
OBH072005L
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
pressure causing serious
injury.
CAUTION
Put a thick cloth around the
radiator cap before refilling the
coolant in order to prevent the
coolant from overflowing into
engine parts such as the gener-
ator.
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.
Ambient
TemperatureMixture Percentage
(volume)
Antifreeze Water
-15°C (5°F) 35 65
-25°C (-13°F) 40 60
-35°C (-31°F) 50 50
-45°C (-49°F) 60 40

Maintenance
24 7
BRAKE FLUID
Checking the brake fluid level
Check the fluid level in the reservoir
periodically. 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 thor-
oughly to prevent brake fluid contam-
ination.
If the level is low, add fluid to the
MAX level. The level will fall with
accumulated mileage. This is a nor-
mal condition associated with the
wear of the brake linings.If the fluid level is excessively low, we
recommend that the system be
checked by an authorized HYUNDAI
dealer.
Use only the specified brake fluid.
(Refer to “Recommended lubricants
or capacities” in section 8.)
Never mix different types of fluid.
✽NOTICE
Before removing the brake filler
cap, read the warning on the cap.
WARNING - Brake fluid
When changing and adding
brake fluid, handle it carefully.
Do not let it come in contact
with your eyes. If brake 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, we recommend that the
system be inspected by an
authorized HYUNDAI dealer.
CAUTION
Do not allow brake fluid to con-
tact the vehicle's body paint, as
paint damage will result. Brake
fluid, which has been exposed
to open air for an extended time
should never be used as its
quality cannot be guaranteed. It
should be disposed of properly.
Don't put in the wrong kind of
fluid. A few drops of mineral-
based oil, such as engine oil, in
your brake system can damage
brake system parts.
OBH071006
WARNING
Clean filler cap before remov-
ing. Use only DOT3 or DOT4
brake fluid from a sealed con-
tainer.

725
Maintenance
POWER STEERING FLUID
Checking the power steering
fluid level
With the vehicle on level ground,
check the fluid level in the power
steering reservoir periodically. The
fluid should be between MAX and
MIN marks on the side of the gauge
at the normal temperature.Before adding power steering fluid,
thoroughly clean the area around the
reservoir cap to prevent power steer-
ing fluid contamination.
If the level is low, add fluid to the
MAX level.
In the event the power steering sys-
tem requires frequent addition of
fluid, we recommend that the system
be inspected by an authorized
HYUNDAI dealer.
Use only the specified power steer-
ing fluid. (Refer to "Recommended
lubricants or capacities" in section
8.)
CAUTION
• To avoid damage to the power
steering water pump unit, do
not operate the vehicle for
prolonged periods with a low
power steering fluid 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/or noise from the power
steering system.
• The use of the non-specified
fluid could reduce the effective-
ness of the power steering sys-
tem and cause damage to it.
OBH078022

Maintenance
28 7
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.Replace the filter according to the
Maintenance Schedule.
If the vehicle is operated in extreme-
ly dusty or sandy areas, replace the
element more often than the usual
recommended intervals. (Refer to
“Maintenance under severe usage
conditions” in this section.)
OBH071051
OVI072052
CAUTION
• Do not drive with the air clean-
er removed; this will result in
excessive engine wear.
• When removing the air cleaner
filter, be careful that dust or
dirt does not enter the air
intake, or damage may result.
• We recommend that you use
parts for replacement from an
authorized HYUNDAI dealer.
• When you clean the filter, use
the compressed air and blow
the air from the clean side to
the dirty side.

Maintenance
32 7
Front windshield wiper blade
For your convenience, move the
windshield wiper blades to the serv-
ice position as follows;
Turn the engine start/stop button off.
Move the wiper switch to the single
wiping (MIST/ ) position within 20
seconds and hold the switch until the
wiper blade is in the fully up position.
Ty p e A
1. Raise the wiper arm.2. Open the cover of the blade. Press
the clip behind the wiper arm and
remove the blade assembly down-
ward.
OHM078059
CAUTION
Do not allow the wiper arm to
fall against the windshield,
since it may chip or crack the
windshield.
OHM078060