2020 Hyundai Tucson fuel filter

7-16
Maintenance
Normal Maintenance Schedule (Petrol Engine [2.0 GDI])
Months1224364860728496
Km x 1,000153045607590105120
Drive belts *1IIII
Engine oil and engine oil filter *2 *3RRRRRRRR
Fuel additives *4Add every 15,000 km or 12 months
Air cleaner filterIIRIIRII
Spark plugs *5Replace every 150,000 km or 120 months
Vapour hose and fuel filler capII
Fuel tank air filter (if equipped)II
Vaccum hose (if equipped)IIIIIIII
Fuel filter *6RR
I : Inspect and if necessary, adjust, correct, clean or replace.
R : Replace or change.
*
1: Inspect drive belt tensioner, idler and alternator pulley and if necessary correct or replace.
*2: Check the engine oil level for leaks every 500 km or before starting a long trip.
*3: The engine oil level should be checked regularly and maintained properly. Operating with an insufficient amount of oil can dam-
age the engine, and such damage is not covered by warranty.
*
4: If good quality petrols meeting Europe Fuel standards (EN228) or equivalent are not available, using one bottle of additive is
recommended. Additives are available from your authorised HYUNDAI dealer along with information on how to use them. Do
not mix other additives.
*
5: For your convenience, it can be replaced prior to it's interval when you do maintenance of other items.
*6: The fuel filter is considered to be maintenance free but periodic inspection is recommended for this maintenance schedule
depending on fuel quality. If there are some important matters like fuel flow restriction, surging, loss of power, or hard starting
problems etc, we recommend replacing the fuel filter immediately regardless of maintenance schedule and consulting with an
authorised HYUNDAI dealer for details.
MAINTENANCE
INTERVALS
MAINTENANCE
ITEM

7-22
Maintenance
Normal Maintenance Schedule (Diesel Engine [2.0 TCI])
Months1224364860728496
Km x 1,000153045607590105120
Drive belts *1At first, inspect at 90,000 km or 48 months,
after that, every 30,000 km or 24 months
Engine oil and engine oil filter *2 *3RRRRRRRR
Vapour hose and fuel filler capII
Air cleaner filter IIRIIRII
Fuel lines, hoses and connectionsIIII
Fuel filter cartridge *4RR
Cooling system
Inspect coolant level and for leaks every day
At first, inspect 60,000 km or 48 months
after that, inspect every 30,000 km or 24 months
I : Inspect and if necessary, adjust, correct, clean or replace.
R : Replace or change.
*
1: Inspect drive belt tensioner, idler and alternator pulley and if necessary correct or replace.
*2: Check the engine oil level for leaks every 500 km or before starting a long trip.
*3 : The engine oil level should be checked regularly and maintained properly. Operating with an insufficient amount of oil can dam-
age the engine, and such damage is not covered by warranty.
*
4: This maintenance schedule depends on fuel quality. It is applicable only when using a qualified fuel <"EN590 or equivalent">.
If the diesel fuel specifications don't meet the EN590, it must be replaced more frequently. If there are some important matters
like fuel flow restriction, surging, loss of power, hard starting problem etc., replace the fuel filter immediately regardless of main-
tenance schedule. We recommend that you consult an authorised HYUNDAI dealer for details.
MAINTENANCE
INTERVALS
MAINTENANCE
ITEM

7-27
7
Maintenance
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Engine oil and filter
The engine oil and filter should be
changed at the intervals specified in
the maintenance schedule. If the
vehicle is being driven in severe con-
ditions, more frequent oil and filter
changes are required.
Drive belts
Inspect all drive belts for evidence of
cuts, cracks, excessive wear or oil
saturation and replace if necessary.
Drive belts should be checked peri-
odically for proper tension and
adjusted as necessary.
Fuel filter (cartridge)
A clogged-up fuel filter may limit the
vehicle driving speed, damage the
emission system, and cause hard
starting. When a considerable
amount of foreign substances are
accumulate in the fuel tank, the fuel
filter should be replaced.
Upon installing a new fuel filter, oper-
ate the diesel engine for several min-
utes, and check the connections for
any leakages. We recommend that
you have the fuel filter replaced by an
authorised HYUNDAI dealer.
Fuel lines, fuel hoses and con-
nections
Check the fuel lines, fuel hoses and
connections for leakage and dam-
age. We recommend that the fuel
lines, fuel hoses and connections be
replaced by an authorised HYUNDAI
dealer. When you are inspecting the
drive belt, place the ignition
switch to the LOCK/OFF or ACC
position.
CAUTION
Diesel Only
Never manipulate or modify the
injection system whilst running
the diesel engine or within 30
seconds after turning the diesel
engine OFF. The high-pressure
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 artificial
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
common rail system produce a
considerable amount of mag-
netic fields.
WARNING

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

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Draining water from fuel filter
The fuel filter in the diesel engine
operates the critical function of sepa-
rating water from the fuels and accu-
mulating the water in its bottom.
When enough water is accumulated
inside the fuel filter, the warning light
illuminates with the ignition switch in
the ON position.
In this case, we recommend you to
have the system checked by an
authorised HYUNDAI dealer.
Fuel filter cartridge replace-
ment
Information
When replacing the fuel filter car-
tridge, we recommend that you use
parts for replacement from an autho-
rised HYUNDAI dealer.
i
7-42
Maintenance
When the accumulated water is
not drained at a proper timing,
water may permeate in the fuel
filter, damaging the major vehi-
cle components, such as the
fuel system.
CAUTIONOTL075014

7-77
7
Maintenance
Engine compartment main fuse panel
Relay NameSymbolType
R LY. 1Cooling Fan High RelayMINI
R LY. 2Rear Defogger RelayMICRO
R LY. 3A/C RelayMICRO
R LY. 4PTC Heater Relay #3MICRO
R LY. 5PTC Heater Relay #2MICRO
R LY. 6PTC Heater Relay #1MICRO
R LY. 7B/A Horn RelayMICRO
R LY. 8Front Deicer RelayMICRO
R LY. 9Cooling Fan Low RelayMICRO
R LY. 1 0Fuel Filter Heater RelayMICRO
R LY. 1 1Start RelayMICRO
R LY. 1 3Blower RelayMICRO
R LY. 1 4Fuel Pump RelayMICRO

7-79
7
Maintenance
Fuse Name SymbolFuse ratingCircuit Protected
FUSE
BLOWER 40A E/R Junction Block (RLY. 13)
T/GATE OPEN 40A Power Tailgate Module
FUEL FILTER
HEATER 30A [D4HA] E/R Junction Block (RLY. 10)
REAR
HEATED 40A E/R Junction Block (RLY. 2)
MULTI
FUSE-2
(D4HA)
GLOW 80A Glow Relay Unit
PTC
HEATER 1 50A E/R Junction Block (RLY. 6)
PTC
HEATER 2 50A E/R Junction Block (RLY. 5)
PTC
HEATER 3 50A E/R Junction Block (RLY. 4)

7-81
7
Maintenance
Fuse Name SymbolFuse ratingCircuit Protected
FUSE
ECU 220A [G4NA] Ignition Coil #1/#2/#3/#4, Condenser
[G4FJ] Ignition Coil #1/#2/#3/#4
[D4HA] ECM
ECU 515A [G4FJ] ECM
[D4HA] TCM
ECU 415A [G4FJ] PCM/ECM
[G4NA/D4HA] ECM
SENSOR 310A [G4NA] Injector #1/#2/#3/#4
[G4FJ] ECM
[D4HA] Mass Air Flow Sensor, Oil Pump Solenoid Valve
DEICER15A E/R Junction Block (RLY. 8 - Front Deicer Relay)
FUEL PUMP 120A E/R Junction Block (RLY. 14)
MODULE 17.5A [D4HA] Glow Relay Unit, Fuel Filter Warning Sensor
B/A HORN10A E/R Junction Block (RLY. 7 - B/A Horn Relay)
ABS 310A ESC Control Module