2005 Hyundai Matrix Owner's Manual

6 DO-IT-YOURSELF MAINTENANCE
8
G350A01A-GAT
ENGINE OIL CONSUMPTION Function of Engine Oil
Engine oil has the primary function of
lubricating and cooling the inside of the engine. Engine oil consumption
It is normal that an engine should
consume some engine oil while nor- mal driving. The cause of oil con- sumption in a normal engine are asfollows;
o Engine oil is used to lubricate pis- tons, piston rings and cylinders. A thin film of oil is left on the cylinder wall when a piston moves downwards in the cylinder. High negative pressure generated dur-ing engine operation sucks some of the oil into the combustion cham- ber.This oil with some oil of the cylin-der wall is burned by the high tem-perature combustion gases during the combustion process. o The engine oil consumption is
strongly effected by the viscosity and quality of oil, engine rpm and driving condition etc. The engine oil is more consumed under severedriving conditions such as high speeds and frequent acceleration and deceleration than normal driv-ing condition.
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 clock- wise.
The distance between the "F" and "L"marks is equal to about 1 liter(GasolineEngine)/1.2 liter(Diesel Engine) of oil.

6
DO-IT-YOURSELF MAINTENANCE
9CHANGING THE OIL AND FILTER
!
G040A04FC-GAT
Gasoline engine
The engine oil and filter should be changed at those intervals specified in the maintenance schedule in Sec-tion 5. If the car is being driven in severe conditions, more frequent oil and filter changes are required. G040A03EThe 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 temperaturegauge moves above the lowest mark. Turn the engine off and place the gear selector lever in "P" (auto-matic) or reverse gear (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 itcounterclockwise with a wrench of the proper size. Be sure that adrain pan is in position to catch the oil 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 :
Oil filler cap
Drain plug
Oil filler F040A02TB
1.6 DOHC
1.8 DOHC
1.6 DOHC 1.8 DOHC 4.0 ~ 4.5 3.5 ~ 4.5
E.CExcept E.C
4.0 ~ 4.5 kgf.m
5. Remove the oil filter by turning it counterclockwise with a oil filter wrench of the proper size. A cer-tain amount of oil will come out when you remove the filter. So be sure to have your drain pan inplace underneath it.
6. Install a new oil filter in accordance with the instructions on the cartonor on the filter itself. Do not over- tighten. Oil filter tightening torque: 1.2~1.6kgf.m
Oil filler cap
Drain plug
Oil filler

6 DO-IT-YOURSELF MAINTENANCE
10
CAUTION:
Slowly pour the recommended oil using by a funnel. Do not overfillnot to damage engine.
!
NOTE: Always dispose of used engine oil in an environmentally acceptablemanner. It is suggested that it be placed in a sealed container and taken to a service station for maybereclaimation. Do not pour the oil on the ground or put it in with the household trash.
Be sure that the mounting surfaceon the engine is clean and that theold gasket is removed completely. Lubricate the new gasket on the filter with clean engine oil beforeinstallation.
7. Remove the engine oil level dip- stick.
8. Refill the crankcase with the rec-
ommended engine oil. Refer tothe specification in chapter 9 for engine oil capacity.
!
9. Start the engine and check to be sure no oil is leaking from the drain plug or oil filter.
10.Shut off the engine and recheck the oil level. WARNING:
Used motor oil may cause irrita-
tion or cancer of the skin if left in contact with the skin for prolongedperiods of time. Wash your hands thoroughly with soap and warm water as soon as possible afterhandling used oil. G040B04FC-GAT
Diesel Engine
Oil filter
G040B01FC
Oil filler cap
The engine oil and filter should be
changed at those intervals specified in the maintenance schedule in Sec- tion 5. If the car is being driven in severe conditions, more frequent oiland 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 lowestmark.

6
DO-IT-YOURSELF MAINTENANCE
11
!
Centerpipe O-ring
G040B02FC
Upper capO-ring
Oil filter element
Oil filter housing
Turn the engine off and place the gear selector lever in "P" (auto-matic) or reverse gear (manual transaxle).
2. Open the hood and remove the engine oil level dipstick.
3. Loosen the oil filter upper cap with a proper tool from the oil filter housing until an O-ring is seen.Then, drain the oil completely. 4. Remove the engine oil filler cap.
5. Slide underneath the car and
loosen the oil pan drain plug by turning it counterclockwise oil pan with a wrench of the proper size. Be sure that a drain pan is inposition to catch the oil 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!
6. When the oil has stopped drain- ing, replace the drain plug using a new gasket and retighten by turn- ing it clockwise.
Oil pan drain plug tightening torque : 3.5 ~ 4.5 kgf.m
7. Pull out the oil filter upper cap with element from the oil filter housing. Using a clean cloth, remove any dirt or oil accumulated around the oil filter housing. 8. After mounting a new centerpipe
O-ring, new oil filter element andnew O-ring to upper cap, install the upper cap to oil filter housing and retighten by turning it clock-wise. Do not over-tighten. Tightening torque : 2.5 kgf.m
CAUTION:
Don't use old oil filter upper cap O-ring and centerpipe O-ring
9. Refill the crankcase with the rec- ommended engine oil. Refer to the specification in chapter 9 for engine oil capacity.
CAUTION:
Slowly pour the recommended oilby using a funnel. Do not overfill not to damage the engine.
! CAUTION:
Slowly loosen the oil filter upper cap not to overflow the oil.
!
!

6 DO-IT-YOURSELF MAINTENANCE
12
!
!
CHECKING AND CHANGING THE ENGINE COOLANT
G050B01A-AAT
Recommended Engine Coolant
G050B01FC
G050A01A-AAT
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 eruptthrough the opening if the cap is removed. You could be seriously burned if you do not observe thisprecaution. Do not remove the radiator cap until the radiator is cool to the touch.
G050B02FC
Gasoline engine
Diesel engine
Use a high quality ethylene-glycol
coolant in a 50/50 mix with water.
10.Start the engine and check to be
sure no oil is leaking from thedrain plug or oil filter.
11.Shut off the engine and recheck
the oil level.
NOTE:
o It is recommended that the en- gine oil and filter should be changed by an authorized Hyundai dealer.
o Always dispose of used engine oil in an environmentally accept-able manner. It is suggested that it be placed in a sealed container and taken to a service station formaybe reclaimation. Do not pour the oil on the ground or put it into the household trash.
WARNING:
Used motor oil may cause irrita- tion or cancer of the skin if left in contact with the skin for prolongedperiods of time. Wash your hands thoroughly with soap and warm water as soon as possible afterhandling used oil.

6
DO-IT-YOURSELF MAINTENANCE
13
Water
65% 60%50%40%
35%40%50%60%
The engine coolant should be com- patible with aluminum engine parts.Additional corrosion inhibitors or addi- tives should not be used. The cooling system must be maintained with thecorrect concentration and type of en- gine coolant to prevent freezing and corrosion. Never allow the concentra-tion of antifreeze to exceed the 60% level or go below the 35% level, or damage to the cooling system mayresult. For proper concentration when adding or replacing the engine cool- ant, refer to the following table. G050C01A-GAT
To Check the Coolant Level The level of the coolant should bebetween the "L" and "F" lines on thereservoir when the engine is cold. If the level is below the "L" mark, add engine coolant to bring it up between"L" and "F". If the level is low, inspect for coolant leaks and recheck the fluid level frequently. If the level dropsagain, visit your Hyundai dealer for an inspection and diagnosis of the rea- son.
G050C01FC
G050C02FC
Gasoline engine
Diesel engine
Ambient
temperature °C ( °F)-15 (5)
-25 (-13) -35 (-31)-45 (-49) Engine coolant concentration
Antifreezesolution
The coolant level can be seen on the
side of the plastic coolant reservoir.

6 DO-IT-YOURSELF MAINTENANCE
14
4. Turn the radiator cap counterclock-
wise without pressing down on it, until it stops. This relieves any pres- sure remaining in the cooling sys-tem. And remove the radiator cap by pushing down and turning coun- terclockwise.Fill the radiator with clean deminer-alized or distilled water. Continueto add clean demineralized or dis- tilled water in small quantities until the fluid level stays up in the radia-tor neck. G050D01FC
G050D02FC
5. Start the engine, top off the radia- tor with water and then add engine coolant to the reservoir until the level is between "L" and "F".
6. Replace the radiator and reservoir caps and check to be sure thedrain cocks are fully closed and not leaking.
G050D02A-AAT
To Change the Coolant
The coolant should be changed at
those intervals specified in the ve-hicle maintenance schedule in Sec- tion 5.
! CAUTION:
Engine coolant can damage the
finish of your car. If you spill en- gine 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 theradiator. Allow all the engine cool- ant to drain from the cooling sys- tem, then securely close the draincock.
3. Check Section 9 for the capacity of the cooling system in your car.Then, following the manufacturer's directions on the engine coolant container, add the appropriatequantity of coolant to the radiator.

6
DO-IT-YOURSELF MAINTENANCE
15
!
SPARK PLUGS
WARNING:
The cooling fan is controlled by engine coolant temperature and may sometimes operate even when the engine is not running. Useextreme caution when working near the blades of the cooling fan so that you are not injured by arotating fan blade. As the engine coolant temperature decreases, the fan will automatically shut off. Thisis a normal condition. G060A01L
G060B02S-GAT
REPLACING THE SPARK PLUGS (Gasoline Engine)
The spark plugs should be changed
at the intervals specified in the ve- hicle maintenances schedule in Sec- tion 5 or whenever engine perfor-mance indicates they should be changed. Symptoms that suggest poor spark plug performance include en-gine misfiring under load, loss of fuel economy, poor acceleration, etc. When spark plugs are replaced, al-ways use spark plugs recommended by Hyundai. The use of other spark plugs can result in loss of perfor-mance, radio interference or engine damage.
Unleaded: 1.0 ~ 1.1 mm (0.039 ~ 0.043 in.) Leaded: 0.7 ~ 0.8 mm (0.028 ~ 0.032 in.)
NOTE: When replacing the spark plugs, genuine Hyundai replacement partsare recommended.
Recommended Spark Plugs:
CHAMPION NGK Leaded
engine
RC10YCBKR5ES
Unleaded
engine
RC10YC4BKR5ES-11