2010 Hyundai Equus cooling

75
Maintenance
OWNER MAINTENANCE
The following lists are vehicle checks and
inspections that should be performed by
the owner or an authorized HYUNDAIdealer at the frequencies indicated to
help ensure safe, dependable operation
of your vehicle.
Any adverse conditions should be
brought to the attention of your dealer as
soon as possible.
These Owner Maintenance Checks are
generally not covered by warranties and
you may be charged for labor, parts and
lubricants used. Owner maintenance schedule
When you stop for fuel:
Check the engine oil level.
Check coolant level in coolant reser-
voir.
Check the windshield washer fluid level.
Look for low or under-inflated tires.
WARNING - Maintenance
work
Performing maintenance work on a vehicle can be dangerous. You
can be seriously injured while
performing some maintenance
procedures. If you lack sufficient
knowledge and experience or the
proper tools and equipment to do
the work, have it done by an
authorized HYUNDAI dealer.
Working under the hood with the engine running is dangerous. It
becomes even more dangerous
when you wear jewelry or loose
clothing. These can become
entangled in moving parts and
result in injury. Therefore, if you
must run the engine while work-
ing under the hood, make certain
that you remove all jewelry (espe-
cially rings, bracelets, watches,
and necklaces) and all neckties,
scarves, and similar loose cloth-
ing before getting near theengine or cooling fans.
WARNING
Be careful when checking your
engine coolant level when the
engine is hot. Scalding hot coolant
and steam may blow out under
pressure. This could cause burns
or other serious injury.

79
Maintenance
NORMAL MAINTENANCE SCHEDULE (CONT.)
MAINTENANCEINTERVALS
MAINTENANCE ITEMNumber of months or driving distance, whichever comes first
Months 12 24 36 48 60 72 84 96
Miles×1,000 10 20 30 40 50 60 70 80
Km×1,000 15 30 45 60 75 90 105 120
Valve clearance (3.8L)* 5
Vapor hose and fuel filler cap II
Fuel tank air filter For Europe I
I
Except EuropeIRIR
Vacuum and crankcase ventilation hoses I I
Vacuum hose I I I I I I I I
Fuel filter* 7 For Europe I
I
Except EuropeIRIR
Fuel lines, hoses and connections II
Cooling system
Inspect every 90,000 km (60,000 miles) or 48 months * 6
Inspect “Coolant level and leak” every day
Inspect “Water pump” when replacing the drive belt or timing belt
I : Inspect and if necessary, adjust, correct, clean or replace.
R : Replace or change.* 5
: Inspect for excessive valve noise and/or engine vibration and adjust if necessary. An authorized HYUNDAI dealer should per-
form the operation.
* 6
: For your convenience, it can be replaced prior to it's interval when you do maintenance of other items.
* 7
: The fuel filter is considered to be maintenance free but periodic inspection is recommended for this maintenance schedule
depends on fuel quality. If there are some important safety matters like fuel flow restriction, surging, loss of power, hard sta rt-
ing problem etc, replace the fuel filter immediately regardless of maintenance schedule and consult an authorized HYUNDAI
dealer for details.

715
Maintenance
Vapor hose and fuel filler cap
The vapor hose and fuel filler cap should
be inspected at those intervals specified
in the maintenance schedule. Make sure
that a new vapor hose or fuel filler cap iscorrectly replaced.
Vacuum crankcase ventilation hoses (if equipped)
Inspect the surface of hoses for evidence
of heat and/or mechanical damage. Hard
and brittle rubber, cracking, tears, cuts,
abrasions, and excessive swelling indi-
cate deterioration. Particular attention
should be paid to examine those hose
surfaces nearest to high heat sources,
such as the exhaust manifold. Inspect the hose routing to assure that the hoses do not come in contact with
any heat source, sharp edges or movingcomponent which might cause heat dam-
age or mechanical wear. Inspect all hose
connections, such as clamps and cou-
plings, to make sure they are secure, and
that no leaks are present. Hoses should
be replaced immediately if there is any
evidence of deterioration or damage.Air cleaner filter
A Genuine HYUNDAI air cleaner filter is recommended when the filter isreplaced. Spark plugs
Make sure to install new spark plugs of
the correct heat range.
Valve clearance (3.8L)
Inspect excessive valve noise and/or
engine vibration and adjust if necessary.
An authorized HYUNDAI dealer should
perform the operation. Cooling system
Check cooling system components, such
as radiator, coolant reservoir, hoses and
connections for leakage and damage.
Replace any damaged parts.
Coolant The coolant should be changed at the
intervals specified in the maintenance
schedule. Brake hoses and lines
Visually check for proper installation,
chafing, cracks, deterioration and any
leakage. Replace any deteriorated 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 4specification.

Maintenance
18
7
Changing the engine oil and filter
Have engine oil and filter changed by an
authorized HYUNDAI dealer according tothe Maintenance Schedule at the begin-ning of this section. The high-pressure cooling system has a
reservoir filled with year-round antifreeze
coolant. The reservoir is filled at the fac-
tory.
Check the antifreeze protection and
coolant level at least once a year, at thebeginning of the winter season, and
before traveling to a colder climate.
Checking the coolant level
WARNING
Used engine oil may cause irrita- tion 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 laboratory ani-
mals. Always protect your skin by
washing your hands thoroughlywith soap and warm water as soon
as possible after handling used oil.
ENGINE COOLANT
WARNING - Removing
radiator cap
Never attempt to remove the radi- ator cap while the engine is oper-
ating or hot. Doing so might leadto cooling system and engine
damage and could result in seri-
ous personal injury from escap-ing hot coolant or steam.
(Continued)
(Continued)
Turn the engine off and wait untilit 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. When you aresure 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 operat- ing, do not remove the radiatorcap 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.

719
Maintenance
Check the condition and connections of all cooling system hoses and heater
hoses. Replace any swollen or deterio-
rated hoses.
The coolant level should be filled
between F and L marks on the side of the
coolant reservoir when the engine iscool.If the coolant level is low, add enough
specified coolant to provide protection
against freezing and corrosion. Bring the
level to F, but do not overfill. If frequent
additions are required, see an authorized
HYUNDAI dealer for a cooling systeminspection.
Recommended engine coolant
Use only soft (de-mineralized) water in
the coolant mixture.
The engine in your vehicle has alu- minum engine parts and must be pro-
tected by an ethylene-glycol-based
coolant to prevent corrosion and freez-ing.
DO NOT USE alcohol or methanol coolant or mix them with the specifiedcoolant.
Do not use a solution that contains more than 60% antifreeze or less than
35% antifreeze, which would reduce
the effectiveness of the solution. For mixture percentage, refer to the fol-
lowing table.-15°C (5°F) 35 65
-25°C (-13°F) 40 60
-35°C (-31°F) 50 50
-45°C (-49°F) 60 40
Ambient
Temperature Mixture Percentage (volume)
Antifreeze Water
OBH078004
OBH078004N
3.8L
4.6L

751
Maintenance
Engine compartment fuse panel
Description Fuse rating Protected component
ALT 200A Alternator
I/P POWER(LH) 60A I/P Junction Box LH
I/P POWER(RH) 60A I/P Junction Box RH
COOLING FAN 60A Cooling Fan Relay
EHPS 80A EHPS Motor
ECS 40A ECS Compressor Relay
AMP-1 40A AV JBL AMP
AMP-2 30A AMP
ESCL(ACC) 30A ESCL (ACC) Relay
ESP-1 30A ESP Control Module, Multipurpose Check Connector
ESP-2 30A ESP Control Module
ESCL(IGN1) 30A ESCL (IGN1) Relay
ESCL(IGN2) 30A ESCL (IGN2) Relay
P/SEAT(FR-LH) 30A Driver Lumbar Support Valve, Driver IMS Control Module, Driver Lumbar Support Switch
H/LP WASHER 20A Head Lamp Washer Relay
P/OUTLET(FR) 25A Front Power Outlet Relay, Cigar Lighter
TRUNK OPEN 10A Trunk Lid Open Relay
IMS 10A IMS Relay
STOP LP 10A Stop Lamp Relay, Stop Lamp Switch, IPM, ESP Control Module, High Mounting Stop Lamp
B/UP LP-1 (G8BA) 10A Back Up Lamp Relay
B/UP LP-2 (G6DA) 10A Rear Combination Lamp LH/RH, Electro Chromic Mirror, Rear Curtain Module, Audio, AV Head Module

753
Maintenance
Description Fuse rating Protected component
INHIBITOR SW 15A Alternator (G8BA), Transmission Range Switch (G6DA)
H/LP(LO-LH) 15A Head Lamp LH
H/LP(LO-RH) 15A Head Lamp RH
ENG SNSR-3 15A ECM (G6DA), Injector #1~ 6 (G6DA), Fuel Pump Relay, Injector #1~ 8 (G8BA)
ENG SNSR-2 10A Canister Purge Control Solenoid Valve, Oil Control Valve #1~4, Variable Intake Manifold Valve, E/R Fuse & Relay Box (Cooling Fan Relay), ECM, Mass Air Flow Sensor (G8BA)
ENG SNSR-1 10A Mass Air Flow Sensor (G6DA), Oxygen Sensor #1 ~ 4, ECM, Camshaft Position Sensor (G8BA)
IGN COIL-2 15A Condenser #1, Condenser #2(G6DA), Ignition Coil #1/3/5, Ignition Coil #7(G8BA)
IGN COIL-1 15A Ignition Coil #2/4/6, Ignition Coil #8 (G8BA), Condenser #2 (G8BA)
ECU 30A Engine Control Relay