2003 Hyundai Sonata coolant

VEHICLE MAINTENANCE REQUIREMENTS 5- 5
Note :
*1. FOR CALIFORNIA, THIS MAINTENANCE IS RECOMMENDED, BUT NOT REQUIRED.
*2. FOR EVERY 12 MONTHS OR 12,000 MILES (20,000 KM), WHICHEVER OCCURS FIRST : "R"
F030C07Y-AAT
R : Replace I : Inspect and, after inspection, clean, adjust, repair or replace if necessary
GENERAL ITEMS
DRIVE BELT
COOLANT
TIMING BELT
MANUAL TRANSAXLE OIL
AUTOMATIC TRANSAXLE FLUID AND FILTER
BRAKE FLUID
BRAKE HOSES AND LINES
REAR BRAKE DRUMS/LININGS, PARKING BRAKE
BRAKE PADS, CALIPERS AND ROTORS
EXHAUST PIPE AND MUFFLER
SUSPENSION MOUNTING BOLTS
STEERING GEAR BOX, LINKAGE & BOOTS/LOWER ARM
BALL JOINT, UPPER ARM BALL JOINT
POWER STEERING PUMP AND HOSES
DRIVESHAFTS AND BOOTS
AIR CONDITIONING REFRIGERANT
AIR FILTER (For Evaporator and Blower unit) 1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16 No. DESCRIPTIONMILES X 1000
KILOMETERS X 1000
MONTHS
2.4DOHC (ALT, W/PUMP)
2.7V6 ( ALT, P/STR'G, A/CON)7.5
12
6
I15
24
12
I
I
I
I
I
I
I
I
I22.5
36
18
I30
48
24
I
I
R
I
I
I
I
I
I
I
I
I
I
I
I
I37.5
60
30
I45
72
36
I
I
I
I
I
I
I
I
I52.5
84
42
I60
96
48
R
I
R
R*¹
I
I
I
I
I
I
I
I
I
I
I
I67.5
108
54
I75
120
60
R
I
I
I
I
I
I
I
I82.5
132
66
I90
144
72
I
I
R
I
I
I
I
I
I
I
I
I
I
I
I
I97.5
156
78
I105
168
84
I
R
I
I
I
I
I
I
I112.5
180
90
I120
192
96
R
I
R
R*¹
I
I
I
I
I
I
I
I
I
I
I
I127.5
204
102
I135
216
108
I
I
I
I
I
I
I
I
I142.5
228
114
I150
240
120
I
R
R
I
I
I
I
I
I
I
I
I
I
I
I
I
See Note *
2

VEHICLE MAINTENANCE REQUIREMENTS 5- 7
F060G01A-AATo Vapor Hose and Fuel Filler Cap
The vapor hose and fuel filler cap should be
inspected at those intervals specified in the
maintenance schedule. Make sure that a new
vapor hose or fuel filler cap is correctly re-
placed.
F060D01A-AATo Fuel Lines, Fuel Hoses and Connec-
tions
Check the fuel lines, fuel hoses and connec-
tions for leakage and damage. Have a trained
technician replace any damaged or leaking
parts immediately.
F060A01A-AATEXPLANATION OF SCHEDULED MAIN-
TENANCE ITEMS
F060B02A-AATo 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 periodically for proper tension and
adjusted as necessary.
F060M01A-AATo Engine Oil and Filter
The engine oil and filter should be changed at the
intervals specified in the maintenance sched-
ule. If the car is being driven in severe condi-
tions, more frequent oil and filter changes are
required.
F060C01A-AATo Fuel Filter
A clogged filter can limit the speed at which the
vehicle may be driven, damage the emission
system and cause hard starting. If an exces-
sive amount of foreign matter accumulates in
the fuel tank, the filter may require replacement
more frequently.
After installing a new filter, run the engine for
several minutes, and check for leaks at the
connections. Fuel filters should be installed by
trained technicians.
F060F01A-AATo Vacuum, Crankcase
Ventilation Hoses
Inspect the surface of hoses for evidence of
heat and/or mechanical damage. Hard and
brittle rubber, cracking, tears, cuts, abrasions,
and excessive swelling indicate deterioration.
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 contact 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 present. Hoses
should be replaced immediately if there is any
evidence of deterioration or damage.
F070C01A-AATo Coolant
The coolant should be changed at the intervals
specified in the maintenance schedule.
F060E01A-AATo Timing belt
Inspect all parts related to the timing belt for
damage and deformation. Replace any dam-
aged parts immediately.
F060J01A-AAT
o Spark plugs
Make sure to install new spark plugs of the
correct heat range.
F060H01A-AATo Air cleaner filter
A Genuine Hyundai air cleaner filter is recom-
mended when filter is replaced.

6. Do-It-Yourself Maintenance
Engine compartment ........................................................................ 6-2
General checks ................................................................................ 6-4
Checking the engine oil .................................................................... 6-5
Changing the oil and filter ................................................................. 6-6
Checking and changing the engine coolant ...................................... 6-7
Spark plugs ...................................................................................... 6-9
Changing the air cleaner filter ......................................................... 6-11
Checking the transaxle oil (Manual) ............................................... 6-12
Checking the transaxle fluid (Automatic) ....................................... 6-13
Checking the brakes ...................................................................... 6-14
Air conditioning care ....................................................................... 6-15
Checking drive belts ...................................................................... 6-18
Checking and replacing fuses ........................................................ 6-18
Replacement of bulbs .................................................................... 6-21
Junction Box description ................................................................ 6-29
6

6- 2 DO-IT-YOURSELF MAINTENANCE
1. Engine oil filler cap
2. Brake Booster
3. Brake fluid reservoir
4. Clutch fluid reservoir (If installed)
5. Under hood junction box 6. Windshield washer fluid reservoir
7. Power steering fluid reservoir
8. Engine oil level dipstick
9. Engine cover
G010A02Y-GATENGINE COMPARTMENT (2.4 DOHC)
10.Automatic transaxle fluid level dipstick
(If installed)
11.Radiator cap
12.Air cleaner
13.Coolant reservoir cap
14.Battery
HEF-064
12345
6 7 8 9 10 11 12 13 14

DO-IT-YOURSELF MAINTENANCE 6- 3
1. Air cleaner
2. Brake fluid reservoir
3. Brake booster
4. Windshield washer fluid reservoir
5. Power steering fluid reservoir6. Engine oil level dipstick
7. Engine cover
8. Engine oil filler cap
9. Automatic transaxle fluid level dipstick
(If installed)
G010B03Y-AATENGINE COMPARTMENT (2.7 V6 Delta)
10.Radiator cap
11.Battery
12.Coolant reservoir cap
13.Under hood junction box
G010B04Y
1
23
4 5 6 7 8 9 10 11 12
13

6- 4 DO-IT-YOURSELF MAINTENANCE
G020C01A-AATVehicle Interior
The following should be checked each time
when the vehicle is driven:
o Lights operation
o Windshield wiper operation
o Horn operation
o Defroster, heating system operation (and air
conditioning, if installed)
o Steering operation and condition
o Mirror condition and operation
o Turn signal operation
o Accelerator pedal operation
o Brake operation, including parking brake
o Manual transaxle operation, including clutch
operation
o Automatic transaxle operation, including
"Park" mechanism operation
o Seat control condition and operation
o Seat belt condition and operation
o Sunvisor operation
If you notice anything that does not operate
correctly or appears to be functioning incor-
rectly, inspect it carefully and seek assistance
from your Hyundai dealer if service is needed.
G020B01A-AATVehicle Exterior
The following should be checked monthly:
o Overall appearance and condition
o Air filter condition
o Wheel condition and wheel nut torque
o Exhaust system condition
o Light condition and operation
o Windshield glass condition
o Wiper blade condition
o Paint condition and body corrosion
o Fluid leaks
o Door and hood lock condition
o Tire pressure and condition (including spare
tire)
G020A01A-AATGENERAL CHECKS
Engine Compartment
The following should be checked regularly:
o Engine oil level and condition
o Transaxle fluid level and condition
o Brake fluid level
o Clutch fluid level
o Engine coolant level
o Windshield washer fluid level
o Accessory drive belt condition
o Engine Coolant hose condition
o Fluid leaks (on or below components)
o Power steering fluid level
o Battery condition

6- 6 DO-IT-YOURSELF MAINTENANCE
!WARNING:Be very careful when draining the engine oil
as it may be hot enough to burn you!
G040A02A-AATCHANGING THE OIL AND FILTERG030D01A-AATAdding Oil
If the oil level is close to or below the "L" mark,
add oil until it reaches the "F" mark. To add oil:
1. Remove the oil filler cap by turning it counter-
clockwise.
2. Add oil, then check the level again. Do not
overfill.
3. Replace the cap by turning it clockwise.
The distance between the "F" and "L" marks is
equal to about 1 quart of oil.The engine oil and filter should be changed at
those intervals specified in the maintenance
schedule in Section 5. If the car is being driven
in severe conditions, more frequent oil and filter
changes are required.
The procedure for changing the oil and filter is
as follows:
1. Park the car on level ground and set the
parking brake. Start the engine and let it
warm up until the needle on the coolant
temperature gauge moves above the lowest
mark. Turn the engine off and place the gear
selector lever in "P" (automatic) or reverse
gear (manual transaxle). Set the parking
brake.
2. Open the hood and remove the engine oil
filler cap.
3. Slide underneath the car and loosen the
drain plug by turning it counterclockwise with
a wrench of the proper size. Be sure that a
drain pan is in position to catch the oil as it
drains out, then remove the drain plug.
G030D01Y
HSM394
DOHC V6DOHC V6

DO-IT-YOURSELF MAINTENANCE 6- 7
!
!
4. When the oil has stopped draining, replace
the drain plug using a new washer and
retighten by turning it clockwise.
Tightening torque is: 3.5 ~ 4.5 kgf.m
5. Remove the oil filter by turning it counter-
clockwise with a oil filter wrench of the proper
size. A certain amount of oil will come out
when you remove the filter. So be sure to
have your drain pan in place underneath it.
6. Install a new oil filter in accordance with the
instructions on the carton or on the filter itself.
Do not over-tighten.
Tightening torque is: 1.2 ~ 1.6 kgf.m
Be sure that the mounting surface on the
engine is clean and that the old gasket is
removed completely. Lubricate the new
gasket on the filter with clean engine oil
before installation.
7. Refill the crankcase with the recommended
engine oil. Refer to the specification in chap-
ter 9 for engine oil capacity.
8. Start the engine and check to be sure no oil
is leaking from the drain plug or oil filter.
9. Shut off the engine and recheck the oil level.G050A01A-AATCHECKING AND CHANGING THE EN-
GINE COOLANT
WARNING:
Do not remove the radiator cap when the
engine is hot. When the engine is hot, the
engine coolant is under pressure and may
erupt through the opening if the cap is
removed. You could be seriously burned if
you do not observe this precaution. Do not
remove the radiator cap until the radiator is
cool to the touch.
NOTE:Always dispose of used engine oil in an
environmentally acceptable manner. It is
suggested that it be placed in a sealed
container and taken to a service station for
reclamation. Do not pour the oil on the
ground or put it into the household trash.
WARNING:Used motor oil may cause irritation or can-
cer of the skin if left in contact with the skin
for prolonged periods of time. Wash your
hands thoroughly with soap and warm
water as soon as possible after handling
used oil.