2015 Hyundai Sonata Engine

7-3
7
Maintenance
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1. Engine oil filler cap
2. Engine oil dipstick
3. Brake fluid reservoir
4. Positive battery terminal
5. Negative battery terminal
6. Fuse box
7. Air cleaner
8. Radiator cap
9. Engine coolant reservoir
10. Windshield washer fluid reservoir
The actual engine compartment the vehicle
may differ from the illustration.
■ ■1.6 T-GDI
OLF014009N

7-4
Maintenance
■
■2.0 T-GDI1. Engine oil filler cap
2. Engine oil dipstick
3. Brake fluid reservoir
4. Positive battery terminal
5. Negative battery terminal
6. Fuse box
7. Air cleaner
8. Radiator cap
9. Engine coolant reservoir
10. Windshield washer fluid reservoir
The actual engine compartment the vehicle
may differ from the illustration.
OLF014008N

7
Maintenance
7-5
1. Engine coolant reservoir
2. Radiator cap
3. Brake fluid reservoir
4. Air cleaner
5. Engine oil dipstick
6. Engine oil filler cap
7. Windshield washer fluid reservoir
8. Fuse box
9. Battery
The actual engine compartment the vehi-
cle may differ from the illustration.
■ ■2.4 GDI
OLF014006

7-7
7
Maintenance
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The following lists are vehicle checks
and inspections that should be per-
formed by the owner or an authorized
HYUNDAI dealer at the frequencies
indicated to help ensure safe,
dependable operation of your vehicle.
Any adverse conditions should be
brought to the attention of your deal-
er as soon as possible.
These Owner Maintenance vehicle
checks are generally not covered by
warranties and you may be charged
for labor, parts and lubricants used.
Performing maintenance work
on a vehicle can be dangerous.
If you lack sufficient knowledge
and experience or the proper
tools and equipment to do the
work, have it done by an author-
ized HYUNDAI dealer. ALWAYS
follow these precautions for
performing maintenance work:
Park your vehicle on level
ground, move the shift lever
into the P (Park, for automatic
transmission vehicle) posi-
tion, apply the parking brake,
place the ignition switch in
the LOCK/OFF position.
Block the tires (front and back)
to prevent the vehicle from
moving.
Remove loose clothing or jew-
elry that can become entan-
gled in moving parts.
(Continued)
WARNING (Continued)
If you must run the engine
during maintenance, do so
out doors or in an area with
plenty of ventilation.
Keep flames, sparks, or smok-
ing materials away from the
battery and fuel-related parts.

7-8
Maintenance
Owner Maintenance Schedule
When you stop for fuel:
Check the engine oil level.
Check coolant level in the enginecoolant reservoir.
Check the windshield washer fluid level.
Check for low or under-inflated tires.
While operating your vehicle:
Note any changes in the sound ofthe 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 traveling on smooth, level
road.
When stopping, listen and check for unusual sounds, pulling to one
side, increased brake pedal travel
or “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 transmission /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).
At least monthly:
Check coolant level in the enginecoolant reservoir.
Check the operation of all exterior lights, including the stoplights, turn
signals and hazard warning flashers.
Check the inflation pressures of all tires including the spare for tires
that are worn, show uneven wear,
or are damaged.
Check for loose wheel lug nuts.
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

Maintenance
7-10
22,500 miles (36,000 km) or 18 months
❑Inspect air cleaner filter
❑Inspect vacuum hose
❑Inspect intercooler, in/out hose, air intake hose
- Turbo GDI (Every 6,200miles (10,000km))
❑Replace engine oil and filter (2.4 GDI) *3
(22,500 miles (36,000 km) or 36 months)
❑ Add fuel additive *4 (22,500 miles (36,000 km) or 36 months)
Normal Maintenance Schedule
The following maintenance services must be performed to ensure good emission control and performance.
Keep receipts for all vehicle emission services to protect your warranty. Where both mileage and time are shown, the
frequency of service is determined by whichever occurs first.
7,500 miles (12,000 km) or 6 months
❑Inspect air cleaner filter
❑Inspect vacuum hose
❑Inspect intercooler, in/out hose, air intake hose
- Turbo GDI (Every 6,200miles (10,000km))
❑Replace engine oil and filter (2.4 GDI) *3
(7,500 miles (12,000 km) or 12 months)
❑ Add fuel additive *4 (7,500 miles (12,000 km) or 12 months)
15,000 miles (24,000 km) or 12 months
❑Inspect air cleaner filter
❑Inspect vacuum hose
❑Inspect air conditioning refrigerant
❑Inspect brake hoses and lines
❑ Inspect drive shafts and boots
❑Inspect exhaust pipe and muffler
❑Inspect front brake disc/pads, calipers
❑Inspect rear brake disc/pads
❑Inspect steering gear box, linkage & boots/lower arm ball joint,
upper arm ball joint
❑ Inspect suspension mounting bolts
❑Inspect intercooler, in/out hose, air intake hose
- Turbo GDI (Every 6,200miles (10,000km))
(Continued)
*3Engine oil (1.6 TGDI/2.0 TGDI) At first, replace at 3,000 miles (5,000 km) or
6 months, after that, every 5,000 miles (8,000 km) or 6 months.
*
4If TOP TIER Detergent Gasoline is not available, one bottle of additive is rec-
ommended. Additives are available from your authorized HYUNDAI dealer
along with information on how to use them. Do not mix other additives.
❈ Inspect : Inspect and if necessary, adjust, correct, clean or replace.
(Continued)
❑Replace climate control air filter (for evaporator and blower unit)
❑Replace engine oil and filter (2.4 GDI) *3
(15,000 miles (24,000 km) or 24 months)
❑ Add fuel additive *4 (15,000 miles (24,000 km) or 24 months)

7
Maintenance
7-11
Normal Maintenance Schedule (CONT.)
37,500 miles (60,000 km) or 30 months
❑Inspect air cleaner filter
❑Inspect vacuum hose
❑Inspect intercooler, in/out hose, air intake hose
- Turbo GDI (Every 6,200miles (10,000km))
❑Inspect dual clutch transmission fluid (if equipped)
❑Replace engine oil and filter (2.4 GDI) *3
(37,500 miles (60,000 km) or 60 months)
❑ Add fuel additive *4 (37,500 miles (60,000 km) or 60 months)
*1Fuel filter & Fuel tank air filter are considered to be maintenance free\
but peri-
odic inspection is recommended for this maintenance schedule depends on
fuel quality. If there are some important safety matters like fuel flow restric-
tion, surging, loss of power, hard starting problem etc, replace the fuel filter
immediately regardless of maintenance schedule and consult an authorized
HYUNDAI dealer for details.
*
3Engine oil (1.6 TGDI/2.0 TGDI) At first, replace at 3,000 miles (5,000 km) or
6 months, after that, every 5,000 miles (8,000 km) or 6 months.
*
4If TOP TIER Detergent Gasoline is not available, one bottle of additive is rec-
ommended. Additives are available from your authorized HYUNDAI dealer
along with information on how to use them. Do not mix other additives.
❈ Inspect : Inspect and if necessary, adjust, correct, clean or replace.
30,000 miles (48,000 km) or 24 months
❑Inspect vacuum hose
❑Inspect air conditioning refrigerant
❑Inspect brake hoses and lines
❑Inspect drive shafts and boots
❑Inspect exhaust pipe and muffler
❑Inspect front brake disc/pads, calipers
❑Inspect rear brake disc/pads
❑Inspect steering gear box, linkage & boots/lower arm ball joint,
upper arm ball joint
❑Inspect suspension mounting bolts
❑Inspect brake fluid
❑Inspect fuel filter *1
❑Inspect fuel cap, fuel lines, fuel hoses and connections
❑Inspect fuel tank air filter (if equipped) *1
❑Inspect parking brake
❑Inspect vapor hose and fuel filler cap
❑Inspect intercooler, in/out hose, air intake hose
- Turbo GDI (Every 6,200miles (10,000km))
❑ Replace climate control air filter (for evaporator and blower unit)
❑Replace air cleaner filter
❑Replace engine oil and filter (2.4 GDI) *3
(30,000 miles (48,000 km) or 48 months)
❑ Add fuel additive *4 (30,000 miles (48,000 km) or 48 months)

Maintenance
7-12
45,000 miles (72,000 km) or 36 months
❑Inspect air cleaner filter
❑Inspect vacuum hose
❑Inspect air conditioning refrigerant
❑Inspect brake hoses and lines
❑Inspect drive shafts and boots
❑Inspect exhaust pipe and muffler
❑Inspect front brake disc/pads, calipers
❑Inspect rear brake disc/pads
❑Inspect steering gear box, linkage & boots/lower arm ball joint,
upper arm ball joint
❑ Inspect suspension mounting bolts
❑Inspect intercooler, in/out hose, air intake hose
- Turbo GDI (Every 6,200miles (10,000km))
❑ Replace climate control air filter (for evaporator and blower unit)
❑Replace engine oil and filter (2.4 GDI) *3
(45,000 miles (72,000 km) or 72 months)
❑Replace spark plugs (iridium coated), (1.6TGDI/2.0TGDI)
❑ Add fuel additive *4 (45,000 miles (72,000 km) or 72 months)
Normal Maintenance Schedule (CONT.)
52,500 miles (84,000 km) or 42 months
❑Inspect air cleaner filter
❑Inspect vacuum hose
❑Inspect intercooler, in/out hose, air intake hose
- Turbo GDI (Every 6,200miles (10,000km))
❑Replace engine oil and filter (2.4 GDI) *3
(52,500 miles (84,000 km) or 84 months)
❑ Add fuel additive *4 (52,500 miles (84,000 km) or 84 months)
*3Engine oil (1.6 TGDI/2.0 TGDI) At first, replace at 3,000 miles (5,000 km) or
6 months, after that, every 5,000 miles (8,000 km) or 6 months.
*
4If TOP TIER Detergent Gasoline is not available, one bottle of additive is rec-
ommended. Additives are available from your authorized HYUNDAI dealer
along with information on how to use them. Do not mix other additives.
❈ Inspect : Inspect and if necessary, adjust, correct, clean or replace.