check engine HYUNDAI IX35 2015 Workshop Manual

Maintenance87
Engine compartment precautions
(Diesel engine)• The piezo injector operates at highvoltage (maximum 200v). Therefore,
the following accidents may occur.
- Direct contact with the injector orinjector wiring may cause electric
shock or damage your muscle or
nerve system.
- The electromagnetic wave from the operating injector may cause the arti-
ficial heart pacemaker to malfunction.
 Follow the safety tips provided below, when you are checking the engine
room whilst the engine is running.
- Do not touch the injector, injectorwirings, and the engine computer
whilst the engine is running.
- Do not remove the injector connector whilst the engine is running.
- People using pacemakers must not go near the engine whilst the engine
is starting or running.
WARNING
- Maintenance work
 Performing maintenance work on
a vehicle can be dangerous. You
can be seriously injured whilst
performing some maintenance
procedures. If you lack sufficient
knowledge and experience or the
proper tools and equipment to do
the work, we recommend that the
system be serviced by a
HYUNDAI authorised repairer.
 Working under the bonnet with the engine running is dangerous.
It becomes even more dangerous
when you wear jewellery or loose
clothing. These can become
entangled in moving parts and
result in injury. Therefore, if you
must run the engine whilst work-
ing under the bonnet, make cer-
tain that you remove all jewellery
(especially rings, bracelets,
watches, and necklaces) and all
neckties, scarves, and similar
loose clothing before getting
near the engine or cooling fans.
CAUTION
 Do not put heavy objects or apply excessive force on top of theengine cover (if equipped) or fuel related parts.
 When you inspect the fuel system (fuel lines and fuel injectiondevices), we recommend that you contact a HYUNDAI authorisedrepairer.
 Do not drive long time with the engine cover (if equipped)removed.
 When checking the engine room, do not go near fire.
Fuel, washer fluid, etc. are flam-mable oils that may cause fire.
 Before touching the battery, igni- tion cables and electrical wiring,you should disconnect the bat-tery "-" terminal. You may get an electric shock from the electriccurrent.
 When you remove the interior trim cover with a flat bed (-) driv-er, be careful not to damage thecover.
 Be careful when you replace and clean bulbs to avoid burns orelectrical shock.
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79
Maintenance
The following lists are vehicle checks and
inspections that should be performed at
the frequencies indicated to help ensure
safe, dependable operation of your vehi-
cle. If you have any question, we recom-
mend that you consult a HYUNDAI
authorised repairer.
These Owner Maintenance Checks are
generally not covered by warranties and
you may be charged for labour, 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 windscreen washer fluid level.
 Look for low or under-inflated tyres.
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.
WARNING
- Diesel Engine
Never work on injection system
with engine running or within 30
seconds after shutting off engine.
High-pressure pump, rail, injectors
and high-pressure pipes are sub-
ject to high pressure even after the
engine stopped. The fuel jet pro-
duced by fuel leaks may cause seri-
ous injury, if it touches the body.
People using pacemakers should
not move than 30cm closer to the
ECU or wiring harness within the
engine room whilst engine is run-
ning, since the high currents in the
electronic engine control system
produce considerable magnetic
fields.
OWNER MAINTENANCE
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Maintenance10
7Whilst 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 steering
effort or looseness in the steering
wheel, or change in its straight-ahead
position.
 Notice if your vehicle constantly turns slightly or “pulls” to one side when trav-
elling 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 oper- ation of your transaxle occurs, check
the transaxle fluid level.
 Check manual transaxle operation, including clutch operation.
 Check automatic transaxle P (Park) function.
 Check parking brake.
 Check for fluid leaks under your vehicle (water dripping from the air condition-
ing system during or after use is nor-
mal).
At least monthly: Check coolant level in the enginecoolant reservoir.
 Check the operation of all exterior lights, including the stoplights, turn sig-
nals and hazard warning flashers.
 Check the inflation pressures of all tyres including the spare.At least twice a year (i.e., every Spring and Fall) : Check radiator, heater and air condi- tioning hoses for leaks or damage.
 Check windscreen washer spray and wiper operation. Clean wiper blades
with clean cloth dampened with wash-
er fluid.
 Check headlight alignment.
 Check muffler, exhaust pipes, shields and clamps.
 Check the lap/shoulder belts for wear and function.
 Check for worn tyres and loose wheel lug nuts.
At least once a year : Clean body and door drain holes.
 Lubricate door hinges and checks, andbonnet hinges.
 Lubricate door and bonnet locks and latches.
 Lubricate door rubber weatherstrips.
 Check the air conditioning system.
 Check the power steering fluid level.
 Inspect and lubricate automatic transaxle linkage and controls.
 Clean battery and terminals.
 Check the brake (and clutch) fluid level.
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Maintenance12
7EXPLANATION OF SCHEDULED MAINTENANCE ITEMSEngine oil and filterThe 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 fre-
quent oil and filter changes are required.Drive beltsInspect all drive belts for evidence of
cuts, cracks, excessive wear or oil satu-
ration and replace if necessary. Drive
belts should be checked periodically for
proper tension and adjusted as neces-
sary.
Fuel filter (cartridge)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 exces-
sive amount of foreign matter accumu-
lates 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 a HYUNDAI
authorised repairer.
Fuel lines, fuel hoses and con-
nectionsCheck the fuel lines, fuel hoses and con-
nections for leakage and damage. We
recommend that the fuel lines, fuel hoses
and connections be replaced by a
HYUNDAI authorised repairer.
WARNING -
Diesel only
Never work on injection system
with engine running or within 30
seconds after shutting off engine.
High pressure pump, rail, injectors
and high pressure pipes are sub-
ject to high pressure even after the
engine stopped. The fuel jet pro-
duced by fuel leaks may cause seri-
ous injury, if it touch the body.
People using pacemakers should
not move than 30cm closer to the
ECU or wiring harness within the
engine room whilst engine is run-
ning, since the high currents in the
Common Rail system produce con-
siderable magnetic fields.
CAUTION
When you are inspecting the belt,
place the ignition switch in theLOCK/OFF or ACC position.
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713
Maintenance
Vapour hose and fuel filler capThe vapour hose and fuel filler cap
should be inspected at those intervals
specified in the maintenance schedule.
Make sure that a new vapour hose or fuel
filler cap is correctly 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 moving
component 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 filterWe recommend that you use air cleaner
filter for replacement from a HYUNDAI
authorised repairer.Spark plugs (for petrol engine)Make sure to install new spark plugs of
the correct heat range.Cooling systemCheck the cooling system parts, such as
radiator, coolant reservoir, hoses and
connections for leakage and damage.
Replace any damaged parts.CoolantThe coolant should be changed at the
intervals specified in the maintenance
schedule.
Manual transaxle fluid
(if equipped)Inspect the manual transaxle fluid
according to the maintenance schedule.Automatic transaxle fluid
(if equipped)Automatic transaxle fluid should not be
checked under normal usage conditions.
But in severe conditions, we recommend
that the fluid be changed by a HYUNDAI
authorised repairer in accordance to the
scheduled maintenance at the beginning
of this chapter.✽ ✽NOTICEAutomatic transaxle fluid colour is basi-
cally red.
As the vehicle is driven, the automatic
transaxle 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 colour.
WARNING
Do not disconnect and inspect
spark plugs when the engine is hot.
You may burn yourself.
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Maintenance14
7Brake hoses and linesVisually check for proper installation,
chafing, cracks, deterioration and any
leakage. Replace any deteriorated or
damaged parts immediately.Brake fluidCheck 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.
Parking brakeInspect the parking brake system includ-
ing the parking brake lever and cables.Brake pads, calipers and rotorsCheck 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 boltsCheck the suspension connections for
looseness or damage. Retighten to the
specified torque.
Steering gear box, linkage &
boots/lower arm ball jointWith the vehicle stopped and engine off,
check for excessive free-play in the
steering wheel.
Check the linkage for bends or damage.
Check the dust boots and ball joints for
deterioration, cracks, or damage.
Replace any damaged parts.Drive shafts and bootsCheck the drive shafts, boots and clamps
for cracks, deterioration, or damage.
Replace any damaged parts and, if nec-
essary, repack the grease.Air conditioning refrigerant/
compressor (if equipped)Check the air conditioning lines and con-
nections for leakage and damage.
CAUTION
The use of a non-specified fluid
could result in transaxle malfunc- tion and failure.
Use only specified automatictransaxle fluid. (Refer to“Recommended lubricants andcapacities” in section 8.)
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715
Maintenance
ENGINE OILChecking the engine oil level 1. Be sure the vehicle is on level ground.
2. Start the engine and allow it to reachnormal operating temperature.
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.
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 capaci-ties” in section 8.)
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.
CAUTION -
Diesel engine
Overfilling the engine oil may causesevere dieseling due to churningeffect. It may lead to engine damage accompanied with abrupt enginespeed increment, combustion noise and white smoke emission.
CAUTION
 Do not overfill with engine oil. Engine damage may result.
 Do not spill engine oil, when adding or changing engine oil. Ifyou drop the engine oil on the engine room, wipe it off immedi-ately.
 When you wipe the oil level gauge, you should wipe it with aclean cloth. When mixed withdebris, it can cause engine dam-age.
OLM073003
OLM073004
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Maintenance16
7
ENGINE COOLANT
Changing the engine oil and filterWe recommend that the engine oil and
filter be replaced by a HYUNDAI autho-
rised repairer. 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 concentration level at least once
a year, at the beginning of the winter sea-
son, and before travelling to a colder cli-
mate.
WARNING
Prolonged and repeated contact
with used engine oils may result in
serious skin disorders including
dermatitis and cancer. Avoid con-
tact with skin as far as possible and
always wash thoroughly after any
contact. Keep used oils out of
reach of children. It is illegal to pol-
lute drains, water courses and soil.
Use only authorised waste collec-
tion facilities including civic ameni-
ty sites and garages for the dispos-
al of used oil and oil filters. If in
doubt, contact the local authority
for disposal instructions.
CAUTION
 When the engine overheats from
low engine coolant, suddenlyadding engine coolant may causecracks in the engine. To prevent damage, add engine coolantslowly in small quantities.
 Do not drive with no engine coolant. It may cause water pumpfailure and engine seizure, etc.
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717
Maintenance
Checking the coolant level
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 (MAX) and L (MIN) marks on
the side of the coolant reservoir when the
engine is cool.
If the coolant level is low, add enough
specified coolant to provide protection
against freezing and corrosion. Bring the
level to F (MAX), but do not overfill. If fre-
quent coolant refill is required, we rec-
ommend that the system be inspected by
a HYUNDAI authorised repairer.
OLM079006
(Continued)
 Even if the engine is not operat-ing, do not remove the radiator
cap or the drain plug whilst the
engine and radiator are hot. Hot
coolant and steam may still blow
out under pressure, causing seri-
ous injury.
WARNING
The electric motor (cool-
ing fan) is controlled by
engine coolant tempera-
ture, refrigerant pres-
sure and vehicle speed.
It may sometimes 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 disconnect
the nagative battery cable.
WARNING
Removing radiator
cap
 Never attempt to remove the radi- ator cap whilst 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 whilst the pressure is released from the cooling sys-
tem. 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.
(Continued)
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719
Maintenance
BRAKE/CLUTCH FLUID (IF EQUIPPED)Checking the brake/clutch fluid
level Check the fluid level in the reservoir peri-
odically. The fluid level should be
between MAX (Maximum) and MIN
(Minimum) marks on the side of the
reservoir.
Before removing the reservoir cap and
adding brake/clutch fluid, clean the area
around the reservoir cap thoroughly to
prevent brake/clutch fluid contamination.
If the level is low, add fluid to the MAX
(Maximum) level. The level will fall with
accumulated mileage. This is a normal
condition associated with the wear of the
brake linings and/or clutch disc (if
equipped).If the fluid level is excessively low, we
recommend that the brake system be
checked by a HYUNDAI authorised
repairer.
Use only the specified brake/clutch fluid.
(Refer to “Recommended lubricants or capacities” in section 8.)
Never mix different types of fluid.✽ ✽ NOTICEBefore removing the brake/clutch filler
cap, read the warning on the cap.
WARNING -
Loss of brake
fluid
In the event the brake system
requires frequent additions of fluid,
we recommend that the system be
inspected by a HYUNDAI autho-
rised repairer.
OLM079008R
WARNING
Clean filler cap before removing.
Use only DOT3 or DOT4 brake/
clutch fluid from a sealed container.
WARNING -
Brake/clutch
fluid
When changing and adding
brake/clutch fluid, handle it careful-
ly. Do not let it come in contact with
your eyes. If brake/clutch fluid
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.
CAUTION
Do not allow brake/clutch fluid to
contact the vehicle's body paint, aspaint damage will result.
Brake/clutch fluid, which has beenexposed to open air for an extended time should never be used as itsquality cannot be guaranteed. Itshould be properly disposed. Don't put in the wrong kind of fluid. A fewdrops of mineral-based oil, such asengine oil, in your brake/clutch sys- tem can damage brake/clutch sys-tem parts.
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