2023 HYUNDAI I30 radiator cap

1-7
Your vehicle at a glance
1
1. Engine coolant reservoir ......................7-31
2. Radiator cap.........................................7-32
3. Brake/clutch fluid reservoir ..................7-34
4. Air cleaner ............................................7-36
5. Engine oil dipstick ................................7-28
6. Engine oil filler cap ..............................7-28
7. Windscreen washer fluid reservoir ......7-35
8. Fuse box ..............................................7-61
9. Battery..................................................7-43
OPD077002R/OPD077098R
The actual engine compartment in the vehicle may differ from the illustration.
■ ■Petrol Engine (2.0 GDI)
■
■Petrol Engine (1.6 T-GDI)
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1-8
Your vehicle at a glance
1. Engine coolant reservoir ......................7-31
2. Radiator cap.........................................7-32
3. Brake/clutch fluid reservoir ..................7-34
4. Air cleaner ............................................7-36
5. Engine oil dipstick ................................7-29
6. Engine oil filler cap ..............................7-30
7. Windscreen washer fluid reservoir ......7-35
8. Fuse box ..............................................7-61
9. Battery..................................................7-43
OPDE076003RThe actual engine compartment in the vehicle may differ from the illustration.
■ ■Diesel Engine (1.6 TCI)

3-38
Convenient features of your vehicle
Fuel filler door
Opening the fuel filler door
1. Turn the engine off.
2. Push the centre edge of the fuel
filler door when the driver’s door is
unlocked.3. Pull the fuel filler door (1) out to
fully open.
4. To remove the fuel tank cap (2),
turn it anticlockwise. You may hear
a hissing noise as the pressure
inside the tank equalises.
5. Place the cap on the fuel filler door.
Information
If the fuel filler door does not open
because ice has formed around it, tap
lightly or push on the door to break
the ice and release the door. Do not
pry on the door. If necessary, spray
around the door with an approved de-
icer fluid (do not use radiator anti-
freeze) or move the vehicle to a warm
place and allow the ice to melt.
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OPD047034N
OPD046033
Open
Close

3-44
Convenient features of your vehicle
Fuel gauge
This gauge indicates the approxi-
mate amount of fuel remaining in the
fuel tank.
Information
• The fuel tank capacity is given in
chapter 8.
• A low fuel level is also indicated by a
low fuel warning light, which will
illuminate when the fuel tank is
nearly empty.
• On inclines or curves, the fuel gauge
pointer may fluctuate or the low fuel
warning light may come on earlier
than usual due to the movement of
fuel in the tank.Avoid driving with an extremely
low fuel level. Running out of fuel
could cause the engine to misfire
damaging the catalytic converter.
NOTICE
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Never remove the radiator cap
when the engine is hot. The
engine coolant is under pressure
and could cause severe burns.
Wait until the engine is cool
before adding coolant to the
reservoir.
WARNING
Running out of fuel can expose
vehicle occupants to danger.
You must stop and obtain addi-
tional fuel as soon as possible
after the warning light comes
on or when the gauge indicator
comes close to the "E (Empty)"
level.
WARNING
OPD046107

6-7
What to do in an emergency
6
If your temperature gauge indicates
overheating, you experience a loss
of power, or hear loud pinging or
knocking, the engine may be over-
heating. If this happens, you should:
1. Pull off the road and stop as soon
as it is safe to do so.
2. Place the shift lever in P (Park, for
automatic transmission/dual clutch
transmission vehicle) or neutral (for
manual transmission/dual clutch
transmission vehicle) and set the
parking brake. If the air condition-
ing is ON, turn it OFF.
3. If engine coolant is running out
under the vehicle or steam is com-
ing out from the bonnet, stop the
engine. Do not open the bonnet
until the coolant has stopped run-
ning or the steaming has stopped.
If there is no visible loss of engine
coolant and no steam, leave the
engine running and check to be
sure the engine cooling fan is
operating. If the fan is not running,
turn the engine off.4. Check for coolant leaking from the
radiator, hoses or under the vehi-
cle. (If the air conditioning had been
in use, it is normal for cold water to
be draining from it when you stop.)
5. If engine coolant is leaking out, stop
the engine immediately and we rec-
ommend that you call an authorised
HYUNDAI dealer for assistance.
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Whilst the engine is
running, keep hands,
clothing and tools
away from the mov-
ing parts such as the
cooling fan and drive
belt to prevent seri-
ous injury.
WARNING
NEVER remove the
radiator cap or the
drain plug whilst the
engine and radiator
are hot. Hot coolant
and steam may blow out under
pressure, causing serious injury.
Turn the engine off and wait
until the engine cools down.
Use extreme care when remov-
ing the radiator cap. Wrap a
thick towel around it, and turn it
anticlockwise slowly to the first
stop. Step back whilst the pres-
sure is released from the cool-
ing system. When you are sure
all the pressure has been
released, press down on the
cap, using a thick towel, and
continue turning anticlockwise
to remove it.
WARNING

7-3
7
Maintenance
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1. Engine coolant reservoir
2. Radiator cap
3. Brake/clutch fluid reservoir
4. Air cleaner
5. Engine oil dipstick
6. Engine oil filler cap
7. Windscreen washer fluid reservoir
8. Fuse box
9. Battery
The actual engine compartment in
the vehicle may differ from the illus-
tration.
OPD077002R/OPD077098R ■ ■
Petrol Engine (1.6 T-GDI)
■ ■Petrol Engine (2.0 GDI)

7-4
Maintenance
1. Engine coolant reservoir
2. Radiator cap
3. Brake/clutch fluid reservoir
4. Air cleaner
5. Engine oil dipstick
6. Engine oil filler cap
7. Windscreen washer fluid reservoir
8. Fuse box
9. Battery
The actual engine compartment in the
vehicle may differ from the illustra-
tion.
OPDE076003R
■ ■Diesel Engine (1.6 TCI)

7-26
Maintenance
Air cleaner filter
We recommend that the air cleaner
filter be replaced by an authorised
HYUNDAI dealer.
Spark plugs
(for Petrol Engine)
Make sure to install new spark plugs
of the correct heat range.
Valve clearance
(for Petrol Engine)
Inspect excessive valve noise and/or
engine vibration and adjust if neces-
sary. We recommend that the system
be serviced by an authorised HYUNDAI
dealer.
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 mainte-
nance 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 an
authorised HYUNDAI dealer accord-
ing to the maintenance schedule.
Information
Automatic transmission fluid colour is
red when new.
As the vehicle is driven, the automatic
transmission fluid will begin to look
darker.
This is a normal condition. It does not
need to be replaced based on the colour
change.
The use of a non-specified fluid
could result in transmission mal-
function and failure.
Use only specified automatic
transmission fluid.
(Refer to “Recommended lubri-
cants and capacities” in chapter 8.)
Manual transmission fluid
(if equipped)
Inspect the manual transmission
fluid according to the maintenance
schedule.
NOTICE
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Do not disconnect and inspect
spark plugs when the engine is
hot. You may burn yourself.
WARNING