2003 Hyundai Coupe cooling

DO-IT-YOURSELF MAINTENANCE
6-6 G040A02GK-GAT
CHANGING THE OIL AND FILTER
The engine oil and filter should be changed at those intervals specified in the maintenanceschedule 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.
G040A01GK 3. Slide underneath the car and loosen the
drain plug by turning it counterclockwise with a wrench of the proper size. Be surethat a drain pan is in position to catch the oilas 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. Tightening torque :
4.5 ~ 4.0 kgf.m (1.6/2.0L) 4.5 ~ 3.5 kgf.m (2.7L)
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.
6. Install a new oil filter in accordance with the instructions on the carton or on the filteritself. Do not over-tighten. Tightening torque: 1.2 ~ 1.6 kgf.m.Be 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.
DOHC
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.
o A thin film of oil is left on the cylinder wall when a piston moves downwards in the cylinder. High negative pressure generatedduring 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 combustiongases 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. Moreengine oil may be consumed under severedriving conditions such as high speeds, fre-quent acceleration and deceleration, com-pared to normal driving condition. V6

DO-IT-YOURSELF MAINTENANCE 6-7
-15 (5)
-25 (-13) -35 (-31)-45 (-49)
G050A01A-AAT
CHECKING 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 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. 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-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.
HGK187
35% 40%50%60%
G050C01A-AAT
To Check the Coolant Level 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 cool.If the level is below the "LOW" mark, addengine coolant to bring it up between "LOW"and "FULL". If the level is low, inspect forcoolant leaks and recheck the fluid level fre-quently. If the level drops again, visit yourHyundai dealer for an inspection and diagnosisof the reason.
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.
Ambient
temperature °C ( °F) Engine Coolant concentration
Antifreezesolution Water
65% 60%50%40%

DO-IT-YOURSELF MAINTENANCE
6-8 5. Replace the radiator and reservoir caps and
check to be sure the drain cocks are fully closed 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 coolant 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. G060A02Y-GAT
SPARK PLUGS
YN60100A
V6
Your engine was originally equipped with plati- num-tipped spark plugs. (For 2.7L only). Platinum-tipped spark plugs will last longer than conventional type spark plugs and can be iden-tified by blue lines on the ceramic shell. NOTE: Do not clean or regap platinum-tipped spark plugs.
G060B01GK-GAT
Replacing the Spark Plugs The spark plugs should be changed at the
intervals specified in the vehicle maintenanceschedule 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:
Type
RC10YC4(CHAMPION) BKR5ES-11(NGK) RC10PYPB4(CHAMPION) PFR5N-11(NGK) RC10YC(CHAMPION) BKR5ES(NGK) RC10YC(CHAMPION) BKR5ES(NGK) Remark
Unleaded
Leaded
1.6/2.0L 2.7L*
2.7L
1.6/2.0L
1.0~1.1 mm (0.039 ~ 0.043 in.)*0.7~0.8 mm (0.028 ~ 0.032 in.)*: leaded one
G050D02A-AAT
To Change the Engine Coolant
The engine coolant should be changed at those
intervals specified in the vehicle maintenance schedule in Section 5.
NOTE: 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 engine coolant to the radiator.
4. Turn the radiator cap counterclockwise with- out pressing down on it, until it stops. Thisrelieves any pressure remaining in the cool-ing system. And remove the radiator cap bypushing down and turning counterclockwise. Now fill the radiator with clean demineral- ized or distilled water. Continue to add cleandemineralized or distilled water in small quan-tities until the fluid level stays up in theradiator neck. DOHC1.0~1.1 mm (0.039 ~ 0.043 in.)
*0.7~0.8 mm (0.028 ~ 0.032 in.)
* Platinum coated.

DO-IT-YOURSELF MAINTENANCE
6-12 While the engine is idling, apply the brakes and move the gear selector lever from "P" to eachof its other positions — "R", "N", "D" — andthen return to "N" or "P". With the engine stillidling:
1. Open the hood, being careful to keep hands, long hair and clothing clear of any movingparts.
2. Remove the transaxle dipstick, wipe it clean, reinsert the dipstick as far as it will go, thenremove it again. Now check the fluid level onthe dipstick. It should be in the "HOT" rangeon the dipstick.
3. If the transaxle fluid level is low, use a funnel to add transaxle fluid through the dipsticktube until the level reaches the "HOT" range.Do not overfill. 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.Fluid level should be within this range
HGK249
ÎÎ
DOHC V6
HGK212
G110D02Y-AAT
To Check the Transaxle Fluid Level
HGK174
Park the car on level ground with the parking
brake engaged. When the transaxle fluid level is checked, the transaxle fluid should be atnormal operating temperature and the engineidling.
G110C02Y-GAT
Transaxle Fluid Capacity
The fluid capacity of the automatic transaxle is
7.8 liters (8.2 U.S. quarts).
WARNING: The transaxle fluid level should be checked
when the engine is at normal operating tem- perature. This means that the engine, radia-tor, exhaust system etc., are very hot. Exer-cise great care not to burn yourself duringthis procedure.

DO-IT-YOURSELF MAINTENANCE
6-14
G140D01S-GAT
Checking the Compressor Drive Belt
When the air conditioning is being used regular- ly, the compressor drive belt tension should bechecked at least once a month. To check the drive belt tension, press down on the belt halfway between the engine crankshaftand compressor pulleys. Pressing with yourfinger, you should not be able to deflect this beltanymore than 8.0 mm. If you have the instru-ments to check it with a force of 98N (22 lb.),the deflection should be approx. 8.0 mm (0.315inches). If the belt is too loose, have it adjustedby your Hyundai dealer. A/C
CRANK PULLEY
TENSION PULLEY 8mm (0.315 in.)
G140D01GK
V6
DOHC
Auto tensioner
Eng.pulley COMP
G140B01A-AAT
Checking the Air Conditioning Opera- tion
1. Start the engine and let it run at fast idle for
several minutes with the air conditioning set at the maximum cold setting.
2. If the air coming out of the in-dash vents is not cold, have the air conditioning systeminspected by your Hyundai dealer.
CAUTION: Running the air conditioning system for extended periods of time with a low refriger-ant level may damage the compressor. G140C01A-AAT
Lubrication To lubricate the compressor and the seals in the system, the air conditioning should be runfor at least 10 minutes each week. This isparticularly important during cool weather whenthe air conditioning system is not otherwise inuse.
G130B02A-AAT
To Replace the Fluid
Recommended brake fluid conforming to DOT
3 or DOT 4 specification should be used. Thereservoir cap must be fully tightened to avoidcontamination from foreign matter or moisture.
NOTE: Do not allow any other liquids to contami-
nate the brake fluid. Seal damage will result.
WARNING:Use caution when handling brake fluid. It
can damage your vision if you get it in your eyes. It will also damage your vehicle's paintif spilled on it and not removed immediately.
G140A01A-AAT
AIR CONDITIONING CARE Keeping the Condenser Clean
The air conditioning condenser (and engine
radiator) should be checked periodically for accumulation of dirt, dead insects, leaves, etc.These can interfere with maximum cooling effi-ciency. When removing such accumulations,brush or hose them away carefully to avoidbending the cooling fans.

DO-IT-YOURSELF MAINTENANCE 6-19
G240A01A-AAT
POWER STEERING HOSES It is suggested that you check the power steer-
ing hose connections for fluid leakage daily. The power steering hoses should be replaced ifthere is severe surface cracking, pulling, scuff-ing or worn spots. Deterioration of the hosecould cause premature failure. G250A01A-AAT
FOR MORE INFORMATION ABOUT YOUR HYUNDAI
If you desire additional information about main- taining and servicing your Hyundai, you maypurchase a factory Shop Manual at your Hyundaidealer's parts department. This is the samemanual used by dealership technicians andwhile it is highly technical it can be useful inobtaining a better understanding of your carand how it works.
G230A03A-GAT
POWER STEERING FLUID LEVEL
The power steering fluid level should be checked
regularly.
To check the power steering fluid level, be sure
the ignition is "OFF", then check to make cer-tain that the power steering fluid level is be-tween the "MAX" and "MIN" level markings onthe fluid reservoir.
NOTE: Grinding noise from the power steering
pump may be heard immediately after the engine is started in extremely cold condi-tions (below - 20°F). If the noise stops dur-
HGK214
G220C01A-AAT
Checking Condenser Cooling Fan
The condenser coolant fan should come on
automatically whenever the air conditioning is in operation. ing warm up, there is no abnormal functionin the system. It is due to a power steeringfluid characteristic in extremely cold condi-tions. Recommended Fluid Use PSF-3 type fluid NOTE: Do not start the engine when the power steering oil reservoir is empty.
G210B01A-AAT
Checking the Battery Keep the battery clean. Any evidence of corro-
sion around the battery posts or terminals shouldbe removed using a solution of household bak-ing soda and warm water. After the batteryterminals are dry, cover them with a light coat-ing of grease.
G220A01A-AAT
CHECKING ELECTRIC COOLING FANS 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 coolant fan, so that you are notinjured by a rotating fan blade. As the cool-ant temperature decreases the fan will auto-matically shut off. This is a normal condi-tion.
G220B01A-AAT
Checking Engine Cooling Fan The engine coolant fan should come on auto-
matically if the engine coolant temperature ishigh.
o Charge batteries only in a well ventilated
area.
o Do not permit flames, sparks or smoking in the area.
o Keep children away from the area.

INDEX10-1
Catalytic Converter
.................................................................... 7-1 ~ 7-2
CD Auto changer (H250, H260) .............................................. 1-70, 1-77
Child Restraint system ........................................................... 1-14 ~ 1-19
Child Seat Restraint Suitability For Seat Position ............................1-18
Cigarette Lighter ................................................................................ 1-37
Clock ................................................................................................ 1-36
Clutch Checking fluid ............................................................................... 6-13
Pedal free play ............................................................................. 6-16
Combination Light Daytime running lights .................................................................. 1-34
Headlight flasher ........................................................................... 1-34
Headlight switch ........................................................................... 1-33
High-beam switch ......................................................................... 1-34
Lane change signal ...................................................................... 1-33
Turn signal operation .................................................................... 1-33
Compact Disk Player Operation (H260) ........................................... 1-75
Cooling Fans ..................................................................................... 6-19
Corrosion Protection Cleaning the interior ....................................................................... 4-3
Protecting your Hyundai from corrosion ................ ......................... 4-1
Washing and waxing ...................................................................... 4-2
Cruise Control ................................................................................... 1-47
D Defrosting/Defogging ......................................................................... 1-54
Door
Central door lock ............................................................................ 1-5
Door locks ...................................................................................... 1-3 Locking and unlocking front door with a key ................................. 1-4
Drink Holder ...................................................................................... 1-38
Drive Belts ........................................................................................ 6-17
ZK000A1-G 10. INDEX A
Air bag ....................................................................................
1-20 ~ 1-24
Air cleaner filter ................................................................................. 6-10
Air Conditioning Care .............................................................................................. 6-14
Operation ...................................................................................... 6-14
Switch ........................................................................................... 1-55
Air filter .............................................................................................. 1-62
Antenna ............................................................................................. 1-87
Ashtray .............................................................................................. 1-37
Audio Fault Code .............................................................................. 1-79
Automatic Transaxle ........................................................................... 2-6 B Battery ...................................................................................... 2-11, 6-18
Brake Anti-lock system ............................................................................. 2-9
Checking the brakes .................................................................... 6-13
Fluid .............................................................................................. 6-13
Pedal clearance ............................................................................ 6-16
Pedal free play ............................................................................. 6-16
Practices ......................................................................................... 2-8
Breaking-In your new Hyundai ........................................................... 1-1
C Care of Cassette tapes .......................................................... 1-85 ~ 1-86
Care of Disk ...................................................................................... 1-85
Cassette Tape Player Operation (H250) ..........................................1-68
10

INDEX
10-2
Driving
Economical driving ....................................................................... 2-11
Smooth cornering ......................................................................... 2-11
Winter driving ................................................................................ 2-11
E Emissions Control Systems ................................................................ 7-1
Engine Before starting the engine .............................................................. 2-2
Changing the oil and filter .............................................................. 6-6
Compartment .................................................................................. 6-1
Coolant ........................................................................................... 6-7
Coolant temperature gauge .......................................................... 1-29
If the engine overheats ................................................................... 3-2
Number ........................................................................................... 8-1
Oil .................................................................................................. 6-4 Oil consumption .............................................................................. 6-6
Starting ........................................................................................... 2-3
Engine Exhaust Can Be Dangerous ................................................... 2-1
FFog Li ght ........................................................................................... 1-43
Front Seats Adjustable front seats ..................................................................... 1-8
Adjustable headrests ...................................................................... 1-8Adjusting seat forward and rearward ............................................. 1-8
Adjusting seatback angle ...................... ......................................... 1-8
Lumbar support control ............... ................................................... 1-9
Seat cushion height adjustment ..................................................... 1-9
Seat warm er ................................................................................... 1-9
Fuel
Capacity .......................................................................................... 9-1
Gauge ........................................................................................... 1-28
Recommendations .......................................................................... 1-1 Fuel Filler Lid
Remote release ............................................................................ 1-45
Fuse Panel Description .......................................................... 6-23 ~ 6-24
Fuses ................................................................................................ 6-17
GGeneral Everyday Checks .................................................................. 6-4
Glove box .......................................................................................... 1-41
HHazard Warn ing System ................................................................... 1-36
Headlight Bulb ................................................................................... 6-20
Headlight Leveling Device System ................................................... 1-38
Heating and Cooling Control Rotary type ........................................................................ 1-51 ~ 1-56
Automatic type ................................................................... 1-57 ~ 1-62
High-mounted rear stoplight .............................................................. 1-44
Hood Release ................................................................................... 1-44
Horn ................................................................................................ 1-47
IIgnition Switch ..................................................................................... 2-2
Immobilizer System ............................................................................. 1-2
Infinity Sound System (B260) ........................................................... 1-80
Anti-Theft Device .......................................................................... 1-81
General operation ......................................................................... 1-81
Radio operation ............................................................................ 1-82
CD operation ................................................................................ 1-83
Instrument Cluster and Indicator ....................................................... 1-26
Instrument Panel Light Control (Rheostat) .......................................1-37
Instruments and Controls .................................................................. 1-25
Intermittent Wiper .............................................................................. 1-35