2003 Hyundai Matrix Owner's Manual

DO-IT-YOURSELF MAINTENANCE
6-4
G020A01A-AAT
GENERAL 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
o Air filter condition
G020B01A-AAT
Vehicle Exterior The following should be checked monthly:
o Overall appearance and 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) G020C01A-AAT
Vehicle 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 incorrect-ly, inspect it carefully and seek assistance fromyour Hyundai dealer if service is needed. G030A01FC-GAT
CHECKING THE ENGINE OIL Gasoline EngineRecommended Oil
SSA6030B
20W-40 20W-50
10W-30 15W-40 15W-50
10W-40 10W-50
°C °F -25-13 2068 40104
-15
- 5 -10-14 0
32 1050
5W-40
5W-30
5W-20
Engine oil is essential to the performance and service of the engine. It is suggested that youcheck the oil level at least once a week innormal use and more often if you are on a tripor driving in severe conditions. SH, SG or SG/CD (API) multi-grade and fuel efficient oil is recommended. NOTE: SAE 5W-20 is not recommended for sus- tained high speed vehicle operation.

DO-IT-YOURSELF MAINTENANCE 6-5
G030C01FC-GAT
To Check the Oil Level
HFC5007
Before checking the oil, warm up the engine to
normal operating temperature and be sure your car is parked on level ground. Turn the engineoff. G030D02A-GAT
Adding Oil
HFC5009
G030B01A
G030B02FC-GAT
CHECKING THE ENGINE OIL Diesel EngineRecommended Oil
Engine oil is essential to the performance and
service of the engine. It is suggested that you check the oil level every 500km or before start-ing a long trip and more often if you are drivingin severe conditions.
The engine oil quality should meet the following
classification:
API class: CF-4 or ABOVEACEA class: B4 or ABOVE NOTE: SAE 0W-30 oil is for extra cold zone and to
be restricted by driving condition and deal- ing area. (Especially, not recommended forsustained high loaded and high speed op-eration.)
G030C02FC
Gasoline engine
Diesel engine Wait about five minutes (gasoline engine) /Wait
about two minutes (diesel engine), then remove the dipstick, wipe it off, fully reinsert the dipstickand withdraw it again. Then note the highestlevel the oil has reached on the dipstick. Itshould be between the upper ("FULL") andlower ("LOW") range.
G030D02FC
Gasoline engine
Diesel engine

DO-IT-YOURSELF MAINTENANCE
6-6 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 liter(Gasoline Engine)/1.2 liter(Diesel Engine) of oil.
G350A01A-GAT
ENGINE OIL CONSUMPTION Function of Engine Oil
Engine oil has the primary function of lubricat-
ing and cooling the inside of the engine.
Engine oil consumption It is normal that an engine should consume
some engine oil while normal driving. The cause of oil consumption in a normal engine are asfollows;
o Engine oil is used to lubricate pistons, piston rings and cylinders. A thin film of oil is left on the cylinder wall when a piston moves downwards in thecylinder. High negative pressure generated
during engine operation sucks some of theoil into the combustion chamber. This oil with some oil of the cylinder wall is burned by the high temperature combustion gases during the combustion process.
o The engine oil consumption is strongly ef- fected by the viscosity and quality of oil,engine rpm and driving condition etc. Theengine oil is more consumed under severedriving conditions such as high speeds and
frequent acceleration and deceleration thannormal driving condition.
G040A03FC-GAT
CHANGING THE OIL AND FILTER (GASOLINE ENGINE)
The engine oil and filter should be changed at
those intervals specified in the maintenance schedule in Section 5. If the car is being drivenin severe conditions, more frequent oil and filterchanges 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 itwarm up until the needle on the coolanttemperature gauge moves above the lowestmark. Turn the engine off and place the gearselector lever in "P" (automatic) or reversegear (manual transaxle).
2. Open the hood and remove the engine oil filler cap.
3. Slide underneath the car and loosen the oil pan drain plug by turning it counterclock-wise with a wrench of the proper size. Besure that a drain pan is in position to catchthe oil as it drains out, then remove the drainplug.
WARNING:Be very careful when draining the engine oilas it may be hot enough to burn you!
4. When the oil has stopped draining, replace the drain plug using a new washer andretighten by turning it clockwise. Oil pan drain plug tightening torque: 1.6DOHC (European Community only: 4.0 ~4.5
kgf.m, Except European Comunity: 3.5 ~4.5 kgf.m) 1.8DOHC: 4.0 ~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 willcome out when you remove the filter. So besure to have your drain pan in place under-neath it.
SSA6040A
Oil filler cap
Drain plug
Oil filter

DO-IT-YOURSELF MAINTENANCE 6-7
G040C01FCEngine oil drain plug
Oil filter
G040B03FC-GAT
CHANGING THE OIL AND FILTER (DIESEL ENGINE)
The engine oil and filter should be changed at
those intervals specified in the maintenance schedule in Section 5. If the car is being drivenin severe conditions, more frequent oil and filterchanges 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 coolanttemperature gauge moves above the lowestmark. Turn the engine off and place the gearselector lever in "P" (automatic) or reversegear (manual transaxle).
2. Open the hood and remove the engine oil filler cap. 3. Slide underneath the car and loosen the oil
pan drain plug by turning it counterclockwiseoil pan with a wrench of the proper size. Besure that a drain pan is in position to catch theoil as it drains out, then remove the drain plug.
WARNING: Be very careful when draining the engine oil
as it may be hot enough to burn you!
4. When the oil has stopped draining, replace the drain plug using a new washer and retighten by turning it clockwise. Oil pan drain plug tightening torque: 3.5 ~ 4.5 kgf.m
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 : 1.2~1.6 kgf.mBe sure that the mounting surface on the engine is clean and that the old gasket isremoved completely. Lubricate the new gas-ket on the filter with clean engine oil beforeinstallation.
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.
NOTE: Always dispose of used engine oil in an
environmentally acceptable manner. It is sug- gested that it be placed in a sealed containerand taken to a service station for maybereclaimation. Do not pour the oil on theground or put it in with 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 yourhands thoroughly with soap and warm wa-ter as soon as possible after handling usedoil. 5. Loosen the oil filter drain plug by turning it
counterclockwise with a wrench of the propersize and drain out some oil in the oil filter. Be surethat a drain pan is in position to catch the oil.
G040B01FCOil filter drain plug O-ring
Oil filterelement
Washer
Upper cap
Lower case
Oil filler cap

DO-IT-YOURSELF MAINTENANCE
6-8
G050B01A-AAT
Recommended Engine Coolant
Use a high quality ethylene-glycol coolant in a 50/50 mix with water. The engine coolant shouldbe compatible with aluminum engine parts.Additional corrosion inhibitors or additives shouldnot be used. The cooling system must be main-tained with the correct concentration and typeof engine coolant to prevent freezing and corro-
G050B01FC
G050B02FC
Gasoline engine
Diesel engine
6. Loosen the oil filter upper cap with a proper tool from the lower case until an O-ring is seen. Then, drain the oil completely.
7. Pull out the oil filter upper cap with element from the lower case. Using a clean cloth, remove any dirt or oil accumulated around the lower case.
8. Install a new copper washer of the oil filter drain plug by the side of lower case andretighten by turning it clockwise.
Tightening torque : 0.8 ~ 1.0 kgf.m
9. After mounting a new oil filter element and new O-ring to upper cap, install the upper cap to lower case and retighten by turning itclockwise. Do not over-tighten.
Tightening torque : 2.3 ~ 2.5 kgf.m
10. Refill the crankcase with the recommended engine oil. Refer to the specification in chap- ter 9 for engine oil capacity.
11. Start the engine and check to be sure no oil is leaking from the drain plug or oil filter.
12. Shut off the engine and recheck the oil level.
NOTE: It is recommended that the engine oil and
filter should be changed by an authorized Hyundai dealer. G050A01A-AAT
CHECKING AND CHANGING THE ENGINE 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 mayerupt through the opening if the cap isremoved. You could be seriously burned ifyou do not observe this precaution. Do notremove the radiator cap until the radiator iscool to the touch. NOTE: Always dispose of used engine oil in an environmentally acceptable manner. It is sug-gested that it be placed in a sealed containerand taken to a service station for maybereclaimation. Do not pour the oil on theground or put it into the household trash. WARNING: Used motor oil may cause irritation or
cancer
of the skin if left in contact with the skin for prolonged periods of time. Wash your handsthoroughly with soap and warm water assoon as possible after handling used oil.

DO-IT-YOURSELF MAINTENANCE 6-9
35% 65%
40% 60%
50% 50%
60% 40%
Ambient
temperature °C ( °F)-15 (5)
-25 (-13) -35 (-31)-45 (-49)
Antifreeze solution Water
Engine coolant concentration G050C01A-GAT
To Check the Coolant Level
G050C01FC
The coolant level can be seen on the side of the
plastic coolant reservoir. The level of the cool- ant should be between the "LOW" and "FULL"lines on the reservoir when the engine is cold.If the level is below the "LOW" mark, addengine coolant to bring it up between "LOW"and "FULL". If the level is low, inspect for G050D02A-AAT
To Change the Coolant The coolant should be changed at those inter-
vals specified in the vehicle maintenance sched-ule in Section 5.
CAUTION: Engine coolant can damage the finish of
your car. If you spill engine coolant on the car, wash it off thoroughly with clean water.
1. Park the car on level ground, set the park- ing brake and remove the radiator cap when cool.
2. Be sure your drain receptacle is in place. Open the drain cock on the radiator. Allowall the engine coolant to drain from thecooling system, then securely close the draincock.
3. Check Section 9 for the capacity of the cooling system in your car. Then, followingthe manufacturer’s directions on the enginecoolant container, add the appropriate quan-tity of coolant to the radiator.
G050C02FC
Diesel engine
Gasoline engine
sion. Never allow the concentration of anti- freeze to exceed the 60% level or go below the35% level, or damage to the cooling systemmay result. For proper concentration when add-ing or replacing the engine coolant, refer to thefollowing table.
coolant leaks and recheck the fluid level fre-quently. If the level drops again, visit yourHyundai dealer for an inspection and diagnosisof the reason.

DO-IT-YOURSELF MAINTENANCE
6-10
CHAMPION NGK RC10YC BKR5ES
Unleaded
engine Leaded
engine
RC10YC4 BKR5ES-11
4. Turn the radiator cap counterclockwise with-
out pressing down on it, until it stops. This relieves any pressure remaining in the cool-ing system. And remove the radiator cap bypushing down and turning counterclockwise. Now fill the radiator with clean demineralized or distilled water. Continue to add clean deminer-alized or distilled water in small quantities untilthe fluid level stays up in the radiator neck. G060B02S-GAT
REPLACING THE SPARK PLUGS The spark plugs should be changed at theintervals specified in the vehicle maintenancesschedule in Section 5 or whenever engine per-formance indicates they should be changed.Symptoms that suggest poor spark plug perfor-mance include engine misfiring under load, lossof fuel economy, poor acceleration, etc. Whenspark plugs are replaced, always use sparkplugs recommended by Hyundai. The use ofother spark plugs can result in loss of perfor-mance, radio interference or engine damage. NOTE: When replacing the spark plugs, genuine Hyundai replacement parts are recom-mended. Recommended Spark Plugs:
SSA6060A
Unleaded: 1.0 ~ 1.1 mm (0.039 ~ 0.043 in.) Leaded: 0.7 ~ 0.8 mm (0.028 ~ 0.032 in.)
G050D01FC
5. Start the engine, top off the radiator with
water and then add engine coolant to the reservoir until the level is between "LOW"and "FULL".
6. Replace the radiator and reservoir caps and check to be sure the drain cocks are fullyclosed and not leaking.
WARNING: The cooling fan is controlled by engine cool- ant temperature and may sometimes oper-ate even when the engine is not running.Use extreme caution when working near theblades of the cooling fan so that you are notinjured by a rotating fan blade. As the en-gine coolant temperature decreases, the fanwill automatically shut off. This is a normalcondition.
G050D02FC

DO-IT-YOURSELF MAINTENANCE 6-11
NOTE: Spark plugs should be tightened firmly. Over- tightening can damage the threads in thealuminum cylinder head. Leaving them tooloose can cause the spark plugs to get veryhot and possibly result in damage to theengine.
7. Replace the cable by pushing the insulated connector directly down onto the electrode.Check to be sure it has snapped into placeand can't fall off.
SSA6061ASSA6062A
WARNING: It is recommended that the engine be cool
or cold when changing the spark plugs. If the engine is hot, you could burn yourself on the insulated connector, the spark plug or the engine itself.
4. When preparing to remove the old spark plug, guide the socket down over the spark plug, being careful not to damage the ce-ramic insulator.
5. To remove the spark plug, turn the wrench handle in a counterclockwise direction.
6. To install the new spark plug, guide the socket down over the spark plug, beingcareful not to damage the ceramic insulator.
G060C01S-GAT
Changing the Spark Plugs
You will find it easier to change spark plugs if
the engine is cold. Always change one sparkplug at a time. This helps avoid getting the wiresmixed up.
1. Remove the center cover on the engine rocker cover.
2. Using a clean cloth, remove any dirt that has accumulated around the spark plug so it cannot fall into the cylinder when the sparkplug is removed.
3. To remove the spark plug cable, pull straight up on the insulated connector, not the cable.Pulling on the cable may damage the carboncore conductor.
SSA6060B