2015 Hyundai Equus engine

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

Maintenance
36 7
Battery capacity label
❈The actual battery label in the vehicle may
differ from the illustration.
1. CMF60L-BCI : The HYUNDAI
model name of battery
2. 12V : The nominal voltage
3. 60Ah (20HR) :The nominal
capacity (in
Ampere hours)
4. 92RC :The nominal reserve
capacity (in min.)
5. 550CCA : The cold-test current in
amperes by SAE
6. 440A :The cold-test current in
amperes by EN
(Continued)
• When lifting a plastic-cased
battery, excessive pressure
on the case may cause battery
acid to leak, resulting in per-
sonal injury. Lift with a battery
carrier or with your hands on
opposite corners.
• Never attempt to recharge the
battery when the battery
cables are connected.
• The electrical ignition system
works with high voltage.
Never touch these compo-
nents with the engine running
or the ignition switched on.
Failure to follow the above
warnings can result in serious
bodily injury or death.CAUTION
• When you don’t use the vehi-
cle for a long time in the low
temperature area, separate
the battery and keep it
indoors.
The power trunk is not closed
completely when the battery is
separated. When you separate
the battery from the vehicle,
refer to "Power trunk" in sec-
tion 4.
• Always charge the battery
fully to prevent the battery
case damaged in low tempera-
ture area.
• If you connect unauthorized
electronic devices to the bat-
tery, the battery may be dis-
charged. Never use unautho-
rized devices.
WARNING
We recommend that the system
be serviced by an authorized
HYUNDAI dealer.
OJD072039 ■Example

Maintenance
38 7
Reset items
Items should be reset after the bat-
tery has been discharged or the bat-
tery has been disconnected.
• Power trunk (See section 4)
• Sunroof (See section 4)
• Trip computer (See section 4)
• Climate control system
(See section 4)
• Clock (See DIS manual)
• Audio (See DIS manual)
• Auto up/down window
(See section 4)
• Driver position memory system
(See section 4)
• Rear door window curtains
(See section 4)
CAUTION
• Keep the battery away from
water or any liquid.
• The battery is in the trunk, so
you should be careful when
you load a container filled with
liquid into the trunk.
• For your safety, use the
authenticity by approved
authorized HYUNDAI dealer,
when you replace the battery.
WARNING
• Before performing mainte-
nance or recharging the bat-
tery, turn off all accessories
and stop the engine.
• The negative battery cable
must be removed first and
installed last when the battery
is disconnected.
• Operation related to the bat-
tery should be done in an
authorized HYUNDAI dealer.