2015 Hyundai Equus check engine

77
Maintenance
OWNER MAINTENANCE
The following lists are vehicle checks
and inspections that should be per-
formed at the frequencies indicated
to help ensure safe, dependable
operation of your vehicle.
Any adverse conditions should be
brought to the attention of your deal-
er as soon as possible.
These Owner Maintenance Checks
are generally not covered by war-
ranties 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
reservoir.
• Check the windshield washer fluid
level.
• Look for low or under-inflated tires.
While operating your vehicle:
• Note any changes in the sound of
the exhaust or any smell of
exhaust fumes in the vehicle.
• Check for vibrations in the steering
wheel. Notice any increased steer-
ing effort or looseness in the steer-
ing wheel, or change in its straight-
ahead position.
• Notice if your vehicle constantly
turns slightly or “pulls” to one side
when traveling on smooth, level
road.
• When stopping, listen and check
for unusual sounds, pulling to one
side, increased brake pedal travel
or “hard-to-push” brake pedal.
• If any slipping or changes in the
operation of your transmission
occurs, check the transmission
fluid level.
• Check automatic transmission P
(Park) function.
• Check parking brake.
• Check for fluid leaks under your
vehicle (water dripping from the air
conditioning system during or after
use is normal).
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.

Maintenance
8 7
At least monthly:
• Check coolant level in the engine
coolant reservoir.
• Check the operation of all exterior
lights, including the stoplights, turn
signals and hazard warning flash-
ers.
• Check the inflation pressures of all
tires including the spare.
At least twice a year
(i.e., every Spring and Fall):
• Check radiator, heater and air con-
ditioning hoses for leaks or dam-
age.
• Check windshield washer spray
and wiper operation. Clean wiper
blades with clean cloth dampened
with washer fluid.
• Check headlight alignment.
• Check muffler, exhaust pipes,
shields and clamps.
• Check the lap/shoulder belts for
wear and function.
• Check for worn tires and loose
wheel lug nuts.
At least once a year:
• Clean body and door drain holes.
• Lubricate door hinges and checks,
and hood hinges.
• Lubricate door and hood locks and
latches.
• Lubricate door rubber weather-
strips.
• Check the air conditioning system.
• Check the power steering fluid
level.
• Inspect and lubricate automatic
transmission linkage and controls.
• Clean battery and terminals.
• Check the brake fluid level.

Maintenance
10 7
NORMAL MAINTENANCE SCHEDULE
I : Inspect and if necessary, adjust, correct, clean or replace.
R : Replace or change.
*
1: Inspect and if necessary correct or replace.
*2: Check the engine oil level and leak every 500 km (350 miles) or before starting a long trip.
*3: Driving in summer season temperature over 40°C (104°F - SAUDI, UAE, OMAN, KUWAIT, BAHRAIN, QATAR, IRAN,YEMEN
ETC) or driving over 170 km/h (106 mile/h) must conform the severe driving condition.
*
4: If good quality gasolines meet Europe Fuel standards (EN228) or equivalents including fuel additives is not available, one bot-
tle of additive is recommended. Additives are available from your authorized HYUNDAI dealer along with information on how to
use them. Do not mix other additives.
Number of months or driving distance, whichever comes first
Months1224364860728496
Miles×1,0001020304050607080
Km×1,000153045607590105120
Drive belts *1For EuropeII
Except EuropeIIII
Engine oil and
engine oil filter *2For Middle EastReplace every 10,000 km or 12 months *3
Except Middle EastRRRRRRRR
Add fuel additives *4For EuropeEvery 15,000 km or 12 months
Except EuropeEvery 5,000 km or 6 months
Air cleaner filter
For Middle East,
IndiaRRRRRRRR
Except Middle East,
IndiaIIRIIRII
MAINTENANCE
INTERVALS
MAINTENANCE
ITEM

711
Maintenance
NORMAL MAINTENANCE SCHEDULE (CONT.)
I : Inspect and if necessary, adjust, correct, clean or replace.
R : Replace or change.
*
5: For your convenience, it can be replaced prior to it's interval when you do maintenance of other items.
*6: Inspect for excessive valve noise and/or engine vibration and adjust if necessary.We recommend that the system be
checked by an authorized HYUNDAI dealer.
*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 starting problem etc, replace the fuel filter immediately regardless of maintenance schedule and we
recommend that you consult an authorized HYUNDAI dealer for details.
Number of months or driving distance, whichever comes first
Months1224364860728496
Miles×1,0001020304050607080
Km×1,000153045607590105120
Spark plugsReplace every 165,000 km (110,000 miles) or 120 months *5
Valve clearance (3.8L) *5 *6I
Vapor hose and fuel filler capII
Fuel tank air filterFor EuropeII
Except EuropeIRIR
Vacuum hoseIIIIIIII
Fuel filter*7For EuropeII
Except EuropeIRIR
Fuel lines, hoses and connectionsII
Cooling systemInspect “Coolant level and leak” every day
Inspect “Water pump” when replacing the drive belt or timing belt
MAINTENANCE
INTERVALS
MAINTENANCE
ITEM

Maintenance
16 7
EXPLANATION OF SCHEDULED MAINTENANCE ITEMS
Engine oil and filter
The engine oil and filter should be
changed at the intervals specified in
the maintenance schedule. If the car
is being driven in severe conditions,
more frequent oil and filter changes
are required.
Drive belts
Inspect all drive belts for evidence of
cuts, cracks, excessive wear or oil
saturation and replace if necessary.
Fuel filter
A clogged filter can limit the speed at
which the vehicle may be driven,
damage the emission system and
cause multiple issues such as hard
starting. If an excessive amount of
foreign matter accumulates in the
fuel tank, the filter may require
replacement more frequently.
After installing a new filter, run the
engine for several minutes, and
check for leaks at the connections.
We recommend that the fuel filter be
replaced by an authorized HYUNDAI
dealer.
Fuel lines, fuel hoses and con-
nections
Check the fuel lines, fuel hoses and
connections for leakage and dam-
age. We recommend that the fuel
lines, fuel hoses and connections be
replaced by an authorized HYUNDAI
dealer.
Vapor hose and fuel filler cap
The vapor hose and fuel filler cap
should be inspected at those intervals
specified in the maintenance sched-
ule. Make sure that a new vapor hose
or fuel filler cap is correctly replaced.
Vacuum crankcase ventilation
hoses (if equipped)
Inspect the surface of hoses for evi-
dence of heat and/or mechanical
damage. Hard and brittle rubber,
cracking, tears, cuts, abrasions, and
excessive swelling indicate deterio-
ration. 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 con-
tact with any heat source, sharp
edges or moving component which
might cause heat damage or
mechanical wear. Inspect all hose
connections, such as clamps and
couplings, to make sure they are
secure, and that no leaks are pres-
ent. Hoses should be replaced
immediately if there is any evidence
of deterioration or damage.
CAUTION
When you are inspecting the
belt, press the engine start/stop
button to the OFF or ACC posi-
tion.

717
Maintenance
Air cleaner filter
We recommend that the air cleaner
filter be replaced by an authorized
HYUNDAI dealer.
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 neces-
sary.
We recommend that the system be
serviced by an authorized HYUNDAI
dealer.
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 mainte-
nance schedule.
Automatic transmission fluid
Automatic transmission fluid should
not be checked under normal usage
conditions.
We recommend that the automatic
transmission fluid be replaced by an
authorized HYUNDAI dealer accord-
ing to the maintenance schedule.
✽NOTICE
Automatic transmission fluid color
is basically red.
As the vehicle is driven, the auto-
matic transmission fluid will begin
to look darker.
It is normal condition and you
should not judge the need to replace
the fluid based upon the changed
color.
CAUTION
The use of a non-specified fluid
could result in transmission
malfunction and failure.
Use only specified automatic
transmission fluid. (Refer to
“Recommended lubricants and
capacities” in section 8.)
WARNING
Do not disconnect and inspect
spark plugs when the engine is
hot. You may burn yourself.

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.