2020 Hyundai Tucson checking oil

3-151
Convenient features of your vehicle
3
The symbols and specifications on
the air conditioning refrigerant label
describe the:
1. Classification of refrigerant
2. Amount of refrigerant
3. Classification of Compressor lubri-
cant
You can find out which air condition-
ing refrigerant is applied to your vehi-
cle on the label located inside of the
bonnet. Refer to chapter 8 for the
location of the air conditioning refrig-
erant label.Checking the amount of air
conditioner refrigerant and
compressor lubricant
When the amount of refrigerant is
low, the performance of the air con-
ditioning is reduced. Overfilling also
reduces the performance of the air
conditioning system.
Therefore, if abnormal operation is
found, we recommend that the sys-
tem be inspected by an authorised
HYUNDAI dealer.
We recommend the air conditioning
system be serviced by an authorised
HYUNDAI dealer. Vehicles equipped with R-134a
Because the refriger-
ant is at very high
pressure, the air con-
ditioning system
should only be serv-
iced by trained and certified
technicians. It is important that
the correct type and amount of
oil and refrigerant are used.
Otherwise, it may cause dam-
age to the vehicle and personal
injury.
WARNING
Vehicles equipped with
R-1234yf
Because the refriger-
ant is mildly inflam-
mable at very high
pressure, the air con-
ditioning system
should only be serv-
iced by trained and
certified technicians.
It is important that the
correct type and amount of oil
and refrigerant are used.
Otherwise, it may cause dam-
age to the vehicle and personal
injury.
WARNING

3-165
Convenient features of your vehicle
Checking the amount of air
conditioner refrigerant and
compressor lubricant
When the amount of refrigerant is
low, the performance of the air con-
ditioning is reduced. Overfilling also
reduces the performance of the air
conditioning system.
Therefore, if abnormal operation is
found, we recommend that the sys-
tem be inspected by an authorised
HYUNDAI dealer.
We recommend the air conditioning
system be serviced by an authorised
HYUNDAI dealer.
3
Vehicles equipped with R-134a
Because the refriger-
ant is at very high
pressure, the air con-
ditioning system
should only be serv-
iced by trained and certified
technicians. It is important that
the correct type and amount of
oil and refrigerant are used.
Otherwise, it may cause dam-
age to the vehicle and personal
injury.
WARNING
Vehicles equipped with
R-1234yf
Because the refriger-
ant is mildly inflam-
mable at very high
pressure, the air con-
ditioning system
should only be serv-
iced by trained and
certified technicians.
It is important that the
correct type and amount of oil
and refrigerant are used.
Otherwise, it may cause dam-
age to the vehicle and personal
injury.
WARNING

7
Maintenance
7
Maintenance
Engine compartment .............................................7-3
Maintenance services ...........................................7-5
Owner's responsibility ......................................................7-5
Owner maintenance precautions ..................................7-5
Owner maintenance ...............................................7-6
Owner maintenance schedule ........................................7-7
Scheduled maintenance services.........................7-9
Normal Maintenance Schedule
(Petrol Engine [1.6 T-GDI]) .........................................7-10
Maintenance Under Severe Usage
and Low Mileage Conditions
(Petrol Engine [1.6 T-GDI]) ..........................................7-14
Normal Maintenance Schedule
(Petrol Engine [2.0 GDI]) .............................................7-16
Maintenance Under Severe Usage
and Low Mileage Conditions
(Petrol Engine [2.0 GDI]) .............................................7-20
Normal Maintenance Schedule
(Diesel Engine [2.0 TCI]) ..............................................7-22
Maintenance Under Severe Usage
and Low Mileage Conditions
(Diesel Engine [2.0 TCI]) ...............................................7-25
Explanation of scheduled maintenance items .7-27Engine oil ..............................................................7-31
Checking the engine oil level (Petrol engine) ..........7-31
Checking the engine oil level (Diesel engine) ..........7-32
Checking the engine oil and filter ..............................7-34
Engine coolant......................................................7-35
Checking the coolant level ...........................................7-35
Changing the coolant .....................................................7-38
Brake/clutch fluid ................................................7-39
Checking the brake/clutch fluid level ........................7-39
Washer fluid .........................................................7-40
Checking the washer fluid level ..................................7-40
Parking brake .......................................................7-41
Checking the parking brake .........................................7-41
Fuel filter (for diesel) .........................................7-42
Draining water from fuel filter ....................................7-42
Fuel filter cartridge replacement ................................7-42
Air cleaner ............................................................7-43
Filter replacement ...........................................................7-43
Climate control air filter .....................................7-45
Filter inspection ...............................................................7-45
Filter replacement ...........................................................7-45
Wiper blades .........................................................7-46
Blade inspection ..............................................................7-46
Blade replacement ..........................................................7-46
7

7-7
7
Maintenance
Owner maintenance schedule
When you stop for fuel:
Check the engine oil level.
Check coolant level in the engine
coolant reservoir.
Check the windscreen washer fluid
level.
Check for low or under-inflated
tyres.
Whilst 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 if there is any
increased steering effort or loose-
ness in the steering wheel, or
change in its straight-ahead posi-
tion.
Notice if your vehicle constantly
turns slightly or “pulls” to one side
when travelling on a smooth, level
road.
When stopping, listen and check
for unusual sounds, pulling to one
side, increased brake pedal travel
or a “hard-to-push” brake pedal.
If any slipping or changes in the
operation of your transmission
occurs, check the transmission
fluid level.
Check the automatic transmis-
sion/dual clutch transmission
P (Park) function.
Check the parking brake.
Check for fluid leaks under your
vehicle (water dripping from the air
conditioning system during or after
use is normal). Be careful when checking your
engine coolant level when the
engine is hot. This may result in
coolant being blown out of the
opening and cause serious
burns and other injuries.
WARNING
Diesel Engine
Never manipulate or modify the
injection system whilst running
the diesel engine or within 30
seconds after turning OFF the
diesel engine. The high-pres-
sure pump, high-pressure
pipes, rail, and injectors are still
subject to the high pressure
right after stopping the diesel
engine. When the fuel leakage
vents out, it may cause serious
body injury. Any people, who
are implemented with the artifi-
cial cardiac pacemaker, should
remain away from the ECU or
the wiring harness by at least 30
cm, whilst running the diesel
engine. The high currents of the
electric engine control system
produce a considerable amount
of magnetic fields.
WARNING

7-31
7
Maintenance
E EN
NG
GI
IN
NE
E
O
OI
IL
L
Checking the engine oil level
(Petrol engine)
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.
OTLE075007
■1.6 T-GDI
OTLA075003
■2.0 GDIRadiator 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 overfill the engine oil.
It may damage the engine.
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.
CAUTION

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 com-
ponents.
Use only the specified engine oil.
(Refer to “Recommended lubricants
and capacities” in chapter 8.)Checking the engine oil level
(Diesel engine)
7-32
Maintenance
OTLE075006
■1.6 T-GDI
OTLA075006
■2.0 GDI
OTLE078004
■2.0 TCI
FigureRequired action
Range
(A)Recommend to contact an autho-
rised HYUNDAI dealer.
Range
(B)Do not refill engine oil.
Range
(C)Normal.
You may add engine oil as long as
the oil level does not go above the
C range.
Range
(D)You must add oil and make sure
that the oil level is in the C Range.

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

7-34
Maintenance
Checking the engine oil and
filter
We recommend that the engine oil
and filter be replaced by an autho-
rised HYUNDAI dealer.
Used engine oil may cause irri-
tation 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 lab-
oratory animals. Always protect
your skin by washing your
hands thoroughly with soap
and warm water as soon as pos-
sible after handling used oil.
WARNING