radiator cap Hyundai Tucson 2020 Owner's Manual - RHD (UK, Australia)

1-6
Your vehicle at a glance
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1. Engine coolant reservoir/
Radiator cap .....................................7-35
2. Brake/clutch fluid reservoir ...............7-39
3. Air cleaner.........................................7-43
4. Engine oil dipstick .............................7-31
5. Engine oil filler cap ...........................7-32
6. Windscreen washer fluid reservoir ...7-40
7. Fuse box ...........................................7-67
8. Battery ..............................................7-49
OTLE075002RThe actual engine compartment in the vehicle may differ from the illustration.
■ ■Petrol Engine (Gamma 1.6 T-GDI)

1-7
Your vehicle at a glance
1
1. Engine coolant reservoir/
Radiator cap .....................................7-35
2. Brake/clutch fluid reservoir ...............7-39
3. Air cleaner.........................................7-43
4. Engine oil dipstick .............................7-31
5. Engine oil filler cap ...........................7-32
6. Windscreen washer fluid reservoir ...7-40
7. Fuse box ...........................................7-67
8. Battery ..............................................7-49
OTL077001R/OTL075103R
■ ■Petrol Engine (Nu 2.0 GDI)

1. Engine coolant reservoir/
Radiator cap .....................................7-35
2. Brake/clutch fluid reservoir ...............7-39
3. Air cleaner ........................................7-43
4. Engine oil dipstick ............................7-32
5. Engine oil filler cap ...........................7-33
6. Windscreen washer fluid reservoir ...7-40
7. Fuse box ...........................................7-67
8. Battery ..............................................7-49
9. Fuel filter ...........................................7-42
OTLE078001R
The actual engine compartment in the vehicle may differ from the illustration.
■ ■Diesel Engine (R 2.0 TCI)
Your vehicle at a glance
1-8

3-44
Convenient features of your vehicle
Fuel filler door
Opening the fuel filler door
1. Turn off the engine.
2. The vehicle may be unlocked by
any of the following methods:
- Press the door unlock button on
the remote key or smart key.
- Press the central door unlock but-
ton of driver’s door side.
- Pull the inside door handle of dri-
ver’s door.
3. To open the fuel filler door, press
the centre edge of the fuel filler
door.
Information
If the driver's side door lock is not
released, the fuel cover is not open
4. Pull the fuel filler door (1) out to
fully open.
5. To remove the fuel tank cap (2),
turn it anticlockwise. You may hear
a hissing noise as the pressure
inside the tank equalizes.
6. 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.
ii
OTLE048031
OTLE048035

3-62
Convenient features of your vehicle
Tachometer
The tachometer indicates the
approximate number of engine revo-
lutions per minute (rpm).
Use the tachometer to select the cor-
rect shift points and to prevent lug-
ging and/or over-revving the engine.
Do not operate the engine within
the tachometer's RED ZONE. This
may cause severe engine damage.
Engine Coolant Temperature
gauge
This gauge indicates the tempera-
ture of the engine coolant when the
ignition switch or Engine Start/Stop
button is in the ON position.If the gauge pointer moves
beyond the normal range area
toward the "130 or H" position, it
indicates overheating that may
damage the engine.
Do not continue driving with an
overheated engine. If your vehicle
overheats, refer to "If the Engine
Overheats" in chapter 6.
NOTICE
NOTICE
OTLE047107/OTLE045104
■Diesel engine ■Petrol engine
OTLE045105
■Type A■Type B
Never remove the radiator cap
when the engine is hot. The
engine coolant is under pres-
sure and could severe burns.
Wait until the engine is cool
before adding coolant to the
reservoir.
WARNING

6-9
What to do in an emergency
6
6. If you cannot find the cause of the
overheating, wait until the engine
temperature has returned to nor-
mal. Then, if coolant has been
lost, carefully add coolant to the
reservoir bringing the fluid level in
the reservoir up to the halfway
mark.
7. Proceed with caution, keeping
alert for further signs of overheat-
ing. If overheating happens again,
we recommend that you call an
authorised HYUNDAI dealer for
assistance.Serious loss of coolant indi-
cates a leak in the cooling
system and we recommend
the system be checked by an
authorised HYUNDAI dealer.
When the engine overheats
from low engine coolant, sud-
denly adding engine coolant
may cause cracks in the
engine. To prevent damage,
add engine coolant slowly in
small quantities.CAUTION
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/Radiator cap
2. Brake/clutch* fluid reservoir
3. Air cleaner
4. Engine oil dipstick
5. Engine oil filler cap
6. Windscreen washer fluid reservoir
7. Fuse box
8. Battery
OTLE075002R/OTL077001R
■ ■Petrol Engine (Nu 2.0 GDI)
The actual engine compartment in the vehicle may differ from the illustration.
■ ■Petrol Engine (Gamma 1.6 T-GDI)

7-4
Maintenance
1. Engine coolant reservoir/Radiator cap
2. Brake/clutch* fluid reservoir
3. Air cleaner
4. Engine oil dipstick
5. Engine oil filler cap
6. Windscreen washer fluid reservoir
7. Fuse box
8. Battery
9. Fuel filter
* : if equipped
OTLE078001RThe actual engine compartment in the vehicle may differ from the illustration.
■ ■Diesel Engine (R 2.0 TCI)

7-28
Maintenance
Vapour hose and fuel filler cap
The vapour hose and fuel filler cap
should be inspected at those inter-
vals specified in the maintenance
schedule. Make sure that a new
vapour hose or fuel filler cap is cor-
rectly 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.
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.
Coolant
The coolant should be changed at
the intervals specified in the mainte-
nance schedule.
Do not disconnect and inspect
spark plugs when the engine is
hot. You may burn yourself.
WARNING

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.
6. The level should be in the C range.
If the level is in the D range, add
enough engine oil to bring the
level up to the C range.If it is near or within D range, add
enough oil to bring the level into the
C range.Do not overfill.
Use only the specified engine oil.
(Refer to “Recommended lubricants
and capacities” in chapter 8.)
7-33
7
Maintenance
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.
WARNING
Do not spill engine oil, when
adding or changing engine
oil. If you drop the engine oil
on the engine compartment,
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.
CAUTIONOTLE078005
■2.0 TCI