2023 HYUNDAI I20 check engine
[x] Cancel search: check enginePage 570 of 649
9-11
09
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 indicate 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
damage or mechanical wear. Inspect
all hose connections, such as clamps
and couplings, 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
We recommend that the air cleaner filter
be replaced by a HYUNDAI authorised
repairer.
Spark plugs
(for petrol engine)
Make sure to install new spark plugs of
the correct heat range.
When assembling parts, be sure to
wipe out foreign substances inside
and outside of the boot bottom of the
ignition coil and the insulator of the
spark plug with a soft cloth to prevent
contamination of the spark plug
insulator.
WARNING
Do not disconnect and inspect spark
plugs when the engine is hot. You may
burn yourself.
Cooling system
Check the cooling system parts, such
as radiator, coolant reservoir, hoses and
connections for leakage and damage.
Replace any damaged parts.
Engine coolant
The coolant should be changed at the
intervals specified in the maintenance
schedule.
Manual transmission fluid/iMT
system actuator fluid
(if equipped)
Inspect the Manual transmission fluid/
iMT system actuator fluid according to
the maintenance schedule.
Automatic transmission fluid
(if equipped)
Automatic transmission fluid should
not be checked under normal usage
conditions.
We recommend that the automatic
transmission fluid is changed by a
HYUNDAI authorised repairer according
to the maintenance schedule.
i Information
$ X W R P D W L F W U D Q V P L V V L R Q I O X L G F R O R X U L V U H G
Z K H Q Q H Z
$ V W K H Y H K L F O H L V G U L Y H Q W K H D X W R P D W L F
W U D Q V P L V V L R Q I O X L G Z L O O E H J L Q W R O R R N
G D U N H U
7 K L V L V D Q R U P D O F R Q G L W L R Q , W G R H V Q R W
Q H H G W R E H U H S O D F H G E D V H G R Q W K H F R O R X U
F K D Q J H
Page 571 of 649
9-12
Maintenance
Dual clutch transmission fluid
(if equipped)
Inspect the dual clutch transmission
fluid according to the maintenance
schedule.
% U D N H K R V H V D Q G O L Q H V
Visually check for proper installation,
chafing, cracks, deterioration and any
leakage. Replace any deteriorated or
damaged parts immediately.
% U D N H F O X W F K I O X L G L I H T X L S S H G
Check brake/clutch fluid level in the
brake fluid reservoir. The level should
be between “MIN” (Minimum) and
“MAX” (Maximum) marks on the side
of the reservoir. Use only hydraulic
brake/clutch fluid conforming to DOT 4
specification.
Parking brake
Inspect the parking brake system
including the parking brake lever and
cables.
Rear brake drums and linings
(if equipped)
Check the rear brake drums and linings
for scoring, burning, leaking fluid,
broken parts, and excessive wear.
% U D N H S D G V F D O L S H U V D Q G U R W R U V
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://service.hyundai-motor.com)
Suspension mounting bolts
Check the suspension connections for
looseness or damage. Retighten to the
specified torque.
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 damage.
Check the dust boots and ball joints
for deterioration, cracks, or damage.
Replace any damaged parts.
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/
compressor
Check the air conditioning lines and
connections for leakage and damage.
Page 572 of 649
9-13
09
ENGINE OIL
Engine oil is used for lubricating,
cooling, and operating various hydraulic
components in the engine. Engine oil
consumption whilst driving is normal,
and it is necessary to check and refill the
engine oil regularly. Also, check and refill
the oil level within the recommended
maintenance schedule to prevent
deterioration of oil performance.
Check the engine oil following the below
procedure.
Checking the engine oil level
„Smartstream G 1.0 T-GDi/ Smartstream G1.0 T-GDi (48V) MHEV
OBC3090008
„Smartstream G1.2
OBC3090009
„Petrol 1.4
OBC3090010
1. Follow all of the oil manufacturer’s
precautions.
2. Be sure the vehicle is on the level
ground in P (Park) with the parking
brake set and the wheels blocked.
3. Turn the engine on and warm
the engine up until the coolant
temperature reaches a constant
normal temperature.
4. Turn the engine off, remove the oil
filler cap and pull the dipstick out.
Wait for 15 minutes for the oil to
return to the oil pan.
5. Wipe the dipstick clean and re-insert
it fully.
6. Pull the dipstick out again and check
the level. The level should be between
the F-L line.
Page 574 of 649
9-15
09
Checking the engine oil and
filter
[ We recommend that the engine oil
and filter be replaced by a HYUNDAI
authorised repairer.
[ If the maintenance schedule to
replace engine oil is exceeded,
the engine oil performance may
deteriorate, and the engine condition
may be affected. Therefore, replace
the engine oil according to the
maintenance schedule.
[ To keep the engine in optimal
condition, use the recommended
engine oil and filter. If the
recommended engine oil and filter are
not used replace it according to the
maintenance schedule under severe
usage conditions.
[ The purpose of the maintenance
schedule for engine oil replacement
is to prevent oil deterioration and it is
irrelevant to oil consumption. Check
and refill engine oil regularly.
WARNING
Used engine oil may cause irritation 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
animals. Always protect your skin
by washing your hands thoroughly
with soap and warm water as soon as
possible after handling used oil.
i Information
: K H Q W K H R L O S U H V V X U H L V O R Z G X H W R
L Q V X I I L F L H Q W H Q J L Q H R L O W K H ( Q J L Q H 2 L O
3 U H V V X U H
Z D U Q L Q J O L J K W Z L O O
L O O X P L Q D W H , Q D G G L W L R Q W K H H Q K D Q F H G
H Q J L Q H S U R W H F W L R Q V \ V W H P Z K L F K O L P L W V
W K H H Q J L Q H
Page 575 of 649
9-16
Maintenance
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 concentration level at least once
a year, at the beginning of the winter
season, and before travelling to a colder
climate.
NOTICE
[ : K H Q W K H H Q J L Q H R Y H U K H D W V I U R P
low engine coolant, suddenly adding
engine coolant may cause cracks
in the engine. To prevent damage,
add engine coolant slowly in small
quantities.
[ ' R Q R W G U L Y H Z L W K Q R H Q J L Q H F R R O D Q W
It may cause water pump failure and
engine seizure, etc.
Checking the coolant level
OBC3090014
„Type A
„Type B
OBC3090061
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 (Full)] and [L (Low)] marked
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(Full)], but do
not overfill. If frequent additions are
required, we recommend that the
system be inspected by a HYUNDAI
authorised repairer.
ENGINE COOLANT
Page 577 of 649
9-18
Maintenance
WARNING
OBC3090015
1. Check if the radiator cap label is
straight In front.
2. Make sure that the tiny protrusions
inside the radiator cap should be
securely interlocked.
Recommended engine coolant
[ When adding coolant, use only
distilled (deionized) water for your
vehicle and never mix hard water in
the coolant filled at the factory. An
incorrect coolant mixture can result
in serious malfunction or engine
damage.
[ The engine in your vehicle has
aluminium engine parts and must be
protected by an phosphate based
ethylene-glycol coolant to prevent
corrosion and freezing.
[ DO NOT USE alcohol or methanol
coolant or mix them with the specified
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.
For mixture percentage, refer to the
following table.
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
i Information
, I L Q G R X E W D E R X W W K H P L [ U D W L R D
Z D W H U D Q G D Q W L I U H H ] H P L [ L V W K H
H D V L H V W W R P L [ W R J H W K H U D V L W Z L O O E H W K H
V D P H T X D Q W L W \ R I H D F K , W L V V X L W D E O H W R
X V H I R U P R V W W H P S H U D W X U H U D Q J H V R I
Page 582 of 649
9-23
09
Checking the washer fluid level
OBC3090017
Check the fluid level in the washer fluid
reservoir and add fluid if necessary.
Plain water may be used if washer fluid
is not available.
However, use washer solvent with
antifreeze characteristics in cold
climates to prevent freezing.
WARNING
To prevent serious injury or death, take
the following safety precautions when
using washer fluid:
[ ' R Q R W X V H H Q J L Q H F R R O D Q W R U
antifreeze in the washer fluid
reservoir. Engine coolant can
severely obscure visibility when
sprayed on the windscreen and may
cause loss of vehicle control resulting
in an accident or damage to paint
and body trim.
[ ' R Q R W D O O R Z V S D U N V R U I O D P H V W R
contact the washer fluid or the
washer fluid reservoir. Washer fluid
may contain alcohol and can be
flammable.
[ ' R Q R W G U L Q N Z D V K H U I O X L G D Q G D Y R L G
contact with skin. Washer fluid is
poisonous to humans and animals.
[ . H H S Z D V K H U I O X L G D Z D \ I U R P F K L O G U H Q
and animals.
Checking the parking brake
OBC3060005
Check the stroke of the parking brake by
counting the number of “clicks’’ heard
whilst fully applying it from the released
position.
Also, the parking brake alone should
securely hold the vehicle on a fairly
steep grade. If the stroke is more or
less than specified, we recommend that
the system be inspected by a HYUNDAI
authorised repairer.
Stroke : 5~7 “clicks’’ at a force of 20 kg
(44 lbs, 196 N).
WASHER FLUID PARKING BRAKE
Page 590 of 649
9-31
09
% D W W H U \ F D S D F L W \ O D E H O
OBC3090062
„ Example
❈ The actual battery label in the vehicle
may differ from the illustration.
1. AGM50L-DIN : The HYUNDAI model
name of battery
2. 12V : The nominal voltage
3. 50Ah (20HR) : The nominal capacity
(in Ampere hours)
4. RC 80 : The nominal reserve capacity
(in min.)
5. CCA 560A : Cold-test current in
amperes by SAE/EN
% D W W H U \ U H F K D U J L Q J
Your vehicle has a maintenance-free,
calcium-based battery.
[ , I W K H E D W W H U \ E H F R P H V G L V F K D U J H G
over a short time (for example, the
headlights or interior lights were on
whilst the vehicle was not in use),
recharge it by slow charging (trickle)
for 10 hours.
[ , I W K H E D W W H U \ J U D G X D O O \ G L V F K D U J H V
because of high electrical load whilst
the vehicle is being used, recharge it
at 20-30A for two hours.
WARNING
When recharging the battery, observe
the following precautions:
[ % H I R U H S H U I R U P L Q J P D L Q W H Q D Q F H R U
recharging the battery, turn off all
accessories and stop the engine.
[ Do not allow cigarettes, sparks, or
flame near the battery.
[ Wear eye protection when checking
the battery during charging.
[ The battery must be removed from
the vehicle and placed in an area with
good ventilation.
[ Watch the battery during charging,
and stop or reduce the charging
rate if the battery cells begin
gassing (boiling) violently or if the
temperature of the electrolyte of any
cell exceeds 49°C (120°F).
[ The negative battery cable must be
removed first and installed last when
the battery is disconnected.
[ Disconnect the battery charger in the
following order.
1. Turn off the main battery charger
switch.
2. Unhook the negative clamp from
the negative battery terminal.
3. Unhook the positive clamp from
the positive battery terminal.