2003 Hyundai Coupe engine coolant

VEHICLE MAINTENANCE REQUIREMENTS 5-5
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EXPLANATION OF SCHEDULED MAIN- TENANCE ITEMS
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o 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 arerequired.
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o Drive Belts Inspect all drive belts for evidence of cuts,
cracks, excessive wear or oil saturation andreplace if necessary. Drive belts should bechecked periodically for proper tension andadjusted as necessary.
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o Fuel Filter
A clogged filter can limit the speed at which the
vehicle may be driven, damage the emissionsystem and cause hard starting. If an exces-sive amount of foreign matter accumulates inthe fuel tank, the filter may require replacementmore frequently.
After installing a new filter, run the engine for
several minutes, and check for leaks at theconnections. Fuel filters should be installed bytrained technicians. F060D01A-AAT
o Fuel Lines, Fuel Hoses and Connec-
tions
Check the fuel lines, fuel hoses and connec-
tions for leakage and damage. Have a trainedtechnician replace any damaged or leaking partsimmediately.
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o Timing Belt Inspect all parts related to the timing belt for
damage and deformation. Replace any dam-aged parts immediately.
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o Vapor Hose and Fuel Filler cap The vapor hose and fuel filler cap should be
inspected at those intervals specified in themaintenance schedule. Make sure that a newvapor hose or fuel filler cap is correctly re-placed.
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o Vacuum, Crankcase
Ventilation Hoses
Inspect the surface of hoses for evidence of
heat and/or mechanical damage. Hard and brit-tle rubber, cracking, tears, cuts, abrasions, andexcessive swelling indicate deterioration. Par-ticular attention should be paid to examiningthose hose surfaces nearest to high heat sourc-es, such as the exhaust manifold. Inspect the hose routing to assure that the
hoses do not come in contact with any heatsource, sharp edges or moving componentwhich might cause heat damage or mechanicalwear. Inspect all hose connections, such asclamps and couplings, to make sure they aresecure, and that no leaks are present. Hosesshould be replaced immediately if there is anyevidence of deterioration or damage.
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o Air Cleaner Filter
A Genuine Hyundai air cleaner filter is recom-
mended when the filter is replaced.
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o Spark Plugs Make sure to install new spark plugs of the
correct heat range.
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o Cooling System
Check the cooling system part, such as radia-
tor, coolant reservoir, hoses and connectionsfor leakage and damage. Replace any dam-aged parts. F060N02E-GAT
o Valve Clearance Inspect excessive valve noise and/or engine
vibration and adjust if necessary. A qualifiedtechnician should perform the operation.

VEHICLE MAINTENANCE REQUIREMENTS
5- 6 F070D01A-AAT
o Manual Transaxle Oil Inspect the manual transaxle oil according to
the maintenance schedule. NOTE: If the oil level is low, check for possible
leaks before adding oil. Do not overfill.
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o Automatic Transaxle Fluid
The fluid level should be in the "HOT" range of
the dipstick, after the engine and transaxle are at normal operating temperature. Check theautomatic transaxle fluid level with the enginerunning and the transaxle in neutral, with theparking brake properly applied. Use DIAMONDATF SP- III or SK ATF SP- III when adding or
changing fluid.
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o Brake Hoses and Lines
Visually check for proper installation, chafing,
cracks, deterioration and any leakage. Replaceany deteriorated or damaged parts immediate-ly. F070G02A-AAT
o Brake Fluid
Check brake fluid level in the brake fluid reser-
voir. The level should be between "MIN" and"MAX" marks on the side of the reservoir. Useonly hydraulic brake fluid conforming to DOT 3or DOT 4.
F070H01A-AAT
o Rear Brake Drums/Linings,
Parking Brake
Check the rear brake drums and linings for
scoring, burning, leaking fluid, broken parts,and excessive wear. Inspect the parking brakesystem including the parking brake lever andcables. For detailed service procedures, refer to the Shop Manual.
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o Brake Pads, Calipers and Rotors Check the pads for excessive wear, discs for run out and wear, and calipers for fluid leakage. F070K01A-AAT
o Exhaust Pipe and Muffler Visually inspect the exhaust pipes, muffler and hangers for cracks, deterioration, or damage.Start the engine and listen carefully for anyexhaust gas leakage. Tighten connections orreplace parts as necessary. F070L01A-AAT o Suspension Mounting Bolts Check the suspension connections for loose- ness or damage. Retighten to the specifiedtorque. F070M01A-AAT
o Steering Gear Box, Linkage & Boots/
Lower arm Ball Joint
With the vehicle stopped and engine off, check for excessive free-play in the steering wheel.Check the linkage for bends or damage. Checkthe dust boots and ball joints for deterioration,cracks, or damage. Replace any damaged parts. F070N01A-AAT
o Power Steering Pump, Belt and
Hoses
Check the power steering pump and hoses for leakage and damage. Replace any damaged orleaking parts immediately. Inspect the powersteering belt for evidence of cuts, cracks, ex-cessive wear, oiliness and proper tension. Re-place or adjust it if necessary. F070P01A-AAT
o Driveshafts and Boots Check the drive shafts, boots and clamps for cracks, deterioration, or damage. Replace anydamaged parts and, if necessary, repack thegrease.
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o Coolant
The coolant should be changed at the
intervals specified in the maintenance sched-ule.

DO-IT-YOURSELF MAINTENANCE 6-1
6. DO-IT-YOURSELF MAINTENANCE G010A01GK-GAT ENGINE COMPARTMENT (1.6 DOHC)
CAUTION: When inspecting or servicing the engine,
you should handle tools and other heavy objects carefully so that the plastic rockercover of the engine is not damaged.
6
1. Engine oil filler cap
2. Brake Booster
3. Brake fluid reservoir
4. Clutch fluid reservoir (If installed)
5. Relay box 6. Windshield washer fluid reservoir cap
7. Power steering fluid reservoir
8. Engine coolant reservoir
9. Engine oil level dipstick
10. Radiator cap
11. Automatic transaxle fluid level dipstick
(If installed)
12. Air cleaner
13. Battery HGK238
1
23 4 5
6 7 8 9 10 11 12 13

DO-IT-YOURSELF MAINTENANCE
6-2 G010A01GK-AAT ENGINE COMPARTMENT (2.0 DOHC CVVT)
1. Engine oil filler cap
2. Brake Booster
3. Brake fluid reservoir
4. Clutch fluid reservoir (If installed)
5. Relay box 6. Windshield washer fluid reservoir cap
7. Power steering fluid reservoir
8. Engine coolant reservoir
9. Engine oil level dipstick
10. Radiator cap
11. Automatic transaxle fluid level dipstick
(If installed)
12. Air cleaner
13. Battery
1
HGK059
2
6 34
5
78 9 1 0 11 1213 CAUTION: When inspecting or servicing the engine, you should handle tools and other heavyobjects carefully so that the plastic rockercover of the engine is not damaged.

DO-IT-YOURSELF MAINTENANCE 6-3
G010B01GK-GAT ENGINE COMPARTMENT (2.7 V6)1
HGK209
2
6 3
4
5
78 9 10 11 12
1. Power steering fluid reservoir
2. Brake Booster
3. Brake fluid reservoir
4. Air filter element 5. Relay box
6. Windshield washer fluid reservoir cap
7. Engine coolant reservoir
8. Engine oil level dipstick 9. Radiator cap
10. Engine oil filler cap
11. Automatic transaxle fluid level dipstick
(If installed)
12. Battery CAUTION:When inspecting or servicing the engine,
you should handle tools and other heavy objects carefully so that the plastic rockercover of the engine is not damaged.

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
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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. G030A01A-AAT
CHECKING THE ENGINE OIL
Engine oil is essential to the performance andservice 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. G030B02GK-GAT
Recommended Oil SH, SG or SG/CD (API) multi-grade and fuel efficient oil is recommended.
SSA6030B°C °F -25-13 20W-40 20W-50
15W-40 15W-50
10W-30
10W-40 10W-50
5W-40
5W-30
5W-2040
104
20 68
1050
032
-15 5 -10-14
1.6L (DOHC), 2.7 L (V6)

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
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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)
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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%
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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%