maintenance Hyundai Coupe 2003 Repair Manual

VEHICLE MAINTENANCE REQUIREMENTS 5-7
6ZF070Q1-A
o Air conditioning refrigerant Check the air conditioning lines and connections for leakage and damage. Check air conditioningperformance according to the relevant shopmanual if necessary.
6ZF070P1-A
o Driveshafts and bootsCheck the drive shafts, boots and clamps for cracks, deterioration, or damage. Replace anydamaged parts and, if necessary, repack thegrease.

OWNER MAINTENANCE 6-1
CAUTION: When inspecting or servicing the engine, youshould handle tools and other heavy objectscarefully so that the plastic rocker cover ofthe engine is not damaged.
SG000A1-E
6. OWNER MAINTENANCE
6
G010A01GK-EAT ENGINE COMPARTMENT (1.6 DOHC)
1. Clutch fluid reservoir (Not all models)
2. Engine oil filler cap
3. Brake Booster
4. Brake fluid reservoir
5. Relay box
6. Windscreen washer fluid reservoir cap
7. Power steering fluid reservoir
8. Engine coolant reservoir
9. Engine oil level dipstick
10. Radiator cap11. Automatic transaxle fluid level dipstick
(Not all models)
12. Air cleaner
13. Battery HGK238-D
1
2
345
6 7 8 9 10 11 12 13

OWNER MAINTENANCE
6-2
G010A01GK-EAT ENGINE COMPARTMENT (2.0 DOHC CVVT) HGK059-D
CAUTION: When inspecting or servicing the engine, youshould handle tools and other heavy objectscarefully so that the plastic rocker cover ofthe engine is not damaged.
1. Clutch fluid reservoir (Not all models)
2. Engine oil filler cap
3. Brake Booster
4. Brake fluid reservoir
5. Relay box 6. Windscreen washer fluid reservoir cap
7. Power steering fluid reservoir
8. Engine coolant reservoir
9. Engine oil level dipstick
10. Radiator cap11. Automatic transaxle fluid level dipstick
(Not all models)
12. Air cleaner
13. Battery
1 23
45
6 7 8 9 10 11 12 13

OWNER MAINTENANCE 6-3
G010B01GK-EAT ENGINE COMPARTMENT (2.7 V6) HGK209-D
1. Power steering fluid reservoir
2. Clutch fluid reservoir (Not all models)
3. Brake Booster
4. Brake fluid reservoir
5. Air filter element 6. Relay box
7. Windscreen washer fluid reservoir cap
8. Engine coolant reservoir
9. Engine oil level dipstick
10. Radiator cap11. Engine oil filler cap
12. Automatic transaxle fluid level dipstick
(Not all medels)
13. Battery
1 23 45
7 8 9 10 11 126
13CAUTION: When inspecting or servicing the engine, youshould handle tools and other heavy objectscarefully so that the plastic rocker cover ofthe engine is not damaged.

OWNER MAINTENANCE
6-4
SG020B1-E DAILY OPERATING CHECKSThe following items should be checked on a daily basis or whenever the vehicle is refuelled, which-ever occurs sooner.
o Engine oil level.
o Engine coolant level.
o Power steering fluid level.
o Brake fluid level.
o Windscreen washer fluid level.
o Battery condition.
o Tyre condition and pressures.
o Operation and cleanliness of all lighting equip-
ment.
o Windscreen wiper and washer operation.
o Horn operation.
o Warning lamp operation.
o Adjustment and cleanliness of mirrors.
o Seat and seat belt adjustment and operation.
o Fluid leakage. The vehicle must not be driven if the daily oper- ating checks indicate that any item of equipmentrelated to the safety or roadworthiness of thevehicle is not functioning correctly. SG030A1-E ENGINE OILThe correct engine oil level is of paramount importance. An excessively high or low oil levelmay result in irreparable damage being sus-tained by the engine. The engine oil level must bechecked on a daily basis or whenever the vehicleis refuelled, whichever occurs sooner.In addition, it is imperative that only an approvedgrade and specification of oil is used to avoid thepossibility of serious engine damage and prema-ture wear. The use of "budget price" oil is a falseeconomy that must be avoided if the maximumreliability and useful life is to be obtained from thevehicle.
SG030B02GK-E Recommended Oil A multi grade oil having a specification which meets A.P.I. specification of SH, SG or above isrecommended. The oil viscosity should be se-lected according to the operating environment ofthe engine by means of the table shown below.The engine oil recommendations are complete inthemselves and the use of additives is neitherrequired nor recommended. The use of engineoil additives may result in invalidation of thevehicle warranty.
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
1.6 DOHC 2.7 L V6

OWNER MAINTENANCE 6-5
See the lubrication chart on the page 9-3. NOTE:
o The use of a 5W-20 multi grade oil is not
recommended for sustained high speeduse.
o When replacing or adding the oil, below SAE 10W-30 is recommended.Using a high viscosity oil of SAE 15W-40and over makes malfunction of CVVT en-gine when the engine is cool. SG030D1-E ENGINE OIL REPLENISHMENT If the indicated oil level is at or below the lower mark of the dipstick, oil should be added until thelevel is at or below the upper mark.To add oil to the engine, remove the filler cap byrotating in an counterclockwise direction andpour engine oil into the engine. Before checkingthe level again, allow several minutes for the oilto drain into the sump. Replace the oil filler caprotating it in a clockwise direction until tight.The quantity of oil required to raise the level from theminimum to maximum level is approximately 1 litre.
SG030C1-E Engine Oil Level The engine oil level should be checked with the engine at normal operating temperature and thevehicle parked upon level ground.Prior to checking the level, the vehicle should beallowed to stand for several minutes after theengine has been switched off to allow the oil todrain back to the sump.Withdraw the dipstick and wipe it with a clean rag.Replace the dipstick fully and withdraw againwhen the oil level may be read from the stick.Normal oil level is indicated when the oil ispresent between the two marks on the stick. It isnot necessary to add oil if the level is above thelower mark and in any case, oil must not beadded to the degree that the level exceeds theupper mark. Replace the dipstick fully after check-ing the level.
HGK210HGK211
DOHC
DOHC V6
HGK259
2.0 L DOHC CVVT
V6

OWNER MAINTENANCE
6-6 WARNING: The oil being drained from the engine will behot. Care should be exercised to preventscalding.
4. When the oil has drained from the sump,
replace the drain plug using a new washer ensuring that the plug is not over tightened.
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 rotating counterclock- wise, using a proprietary oil filter removal toolif necessary. Note that the oil filter will containapproximately 0.5 litres of oil and this shouldbe collected in a suitable receptacle.
6. Install a new oil filter having smeared the sealing ring with clean oil and rotating clock-wise until the filter contacts the mounting andthen a further one half turn. Do not over-tighten. Tightening torque: 1.2 ~ 1.6 kgf.m.
7. Pour the specified quantity of the recom- mended oil into the engine and replace the filler cap. Start the engine and ensure that nooil leaks exist. Turn off the engine and after acouple minutes, recheck the oil level.
WARNING:Prolonged and repeated contact with usedengine oils may result in serious skin disor-ders including dermatitis and cancer. Avoidcontact with skin as far as possible and al-
G040A02GK-EAT ENGINE OIL AND FILTER REPLACEMENT The engine oil and filter must be changed at the time or mileage interval specified in the mainte-nance schedule. If the vehicle is operated undersevere or adverse conditions, the oil and filtermust be replaced more frequently.To replace the oil and filter, proceed as follows:
1. Ensure that the engine is at normal operating
temperature and park the vehicle on level ground with the parking brake securely ap-plied and the engine turned off.
2. Open the bonnet and remove the oil filler cap.
3. Prepare a suitable receptacle to collect the displaced oil and remove the drain plug fromthe sump.
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 normal driving. The cause of oilconsumption in a normal engine are as follows;
o Engine oil is used to lubricate pistons, piston
rings and cylinders. A thin film of oil is left on the cylinder wall whena piston moves downwards in the cylinder.High negative pressure generated during en-gine operation sucks some of the oil into thecombustion chamber.This oil with some oil of the cylinder wall isburned 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.More engine oil may be consumed undersevere driving conditions such as high speeds,frequent acceleration and deceleration, com-pared to normal driving.
G040A01GK
DOHC V6

OWNER MAINTENANCE 6-7
ways wash thoroughly after any contact. Keep used oils out of reach of children. It is illegalto pollute drains, water courses and soil. Useonly authorized waste collection facilitiesincluding civic amenity sites and garages forthe disposal of used oil and oil filters. If indoubt, contact the local authority for dis-posal instructions. SG050A1-E ENGINE COOLANT CHECKING AND REPLACING WARNING: Do not remove the radiator cap when the engine is hot, since the system is pressurizedand coolant may be ejected from the radiatorresulting in scalding. SG050B1-E Coolant recommendations
Only ethylene glycol based coolant with a corro- sion inhibitor suited to aluminium alloy enginecomponents should be used in the cooling sys-tem. No further additives or inhibitors should beused. The coolant specific gravity should bechecked as prescribed in the maintenance sched-ule to ensure adequate frost and corrosion pro-tection. In addition, the engine coolant must bereplaced at the specified interval since the corro-sion inhibitor properties deteriorate with time.It is important to note that whilst an increase in theconcentration of anti freeze gives an increase inthe level of frost protection, a solution which is inexcess of 65% anti freeze will result in reducedfrost protection and engine overheating. There-fore the recommended concentration of 50%should not be exceeded for general use.The use of methanol based anti freeze com-pounds may result in engine overheating and willinvalidate the vehicle warranty. NOTE: It is imperative that vehicles fitted with an airconditioning system have a coolant concen-tration of the recommended strength at alltimes. The use of the air conditioning systemwhen the cooling system is filled with wateronly will result in the heater matrix freezingand subsequently bursting.SG050C1-E Engine Coolant LevelThe engine coolant level may be observed through the side of the plastic coolant reservoir(expansion tank) when the engine is cold. If thelevel is below the "LOW" mark, add coolant of thecorrect concentration until the level is betweenthe "LOW" and "Full" marks. If the level fallsbelow the "LOW" mark on a regular basis despitebeing topped up, consult a Hyundai dealer. SG050D1-E To Change the Engine CoolantThe engine coolant should be changed at those intervals specified in the vehicle maintenanceschedule in Section 5. NOTE: Care should be taken to ensure that coolantis not allowed to spill onto the paintworksince the finish may become damaged. Ifcoolant spillage occurs, the affected areashould be rinsed thoroughly with water.
1. Park the vehicle on level ground and ensure
that the parking brake is firmly applied, and the engine allowed to cool.DO NOT ATTEMPT THIS OPERATIONWHILST THE ENGINE IS HOT SINCEBURN-ING OR SCALDING MAY RESULT.
2. Prepare a suitable receptacle to collect the displaced coolant and position this under theradiator drain tap.
HGK187

OWNER MAINTENANCE
6-8 CAUTION: Sparking plugs must only be cleaned usingpurpose designed equipment. Wire brushingmay damage the centre electrode insulatorcausing mis-firing to occur. Only the correctgrade of sparking plug should be used. Useof an incorrect grade may result in seriousengine damage.
3. With the heater temperature control set to the
"HOT" position, remove the radiator cap andopen the radiator drain tap.
4. When the engine coolant has drained com- pletely, close the drain tap ensuring that thisis not over tightened.
5. Prepare a suitable quantity of new engine coolant (refer to section 9) and pour this intothe radiator.
6. Start the engine with the radiator cap still removed and continue to add coolant as thelevel decreases as air is expelled from thesystem. When the level remains constant,replace the radiator cap and replenish thecoolant reservoir.
7. When the engine is hot, check to ensure that no coolant leaks are present.
WARNING:The cooling fan is controlled by engine cool-ant temperature and may sometimes operateeven when the engine is not running. Useextreme caution when working near the bladesof the cooling fan so that you are not injuredby a rotating fan blade. As the engine coolanttemperature decreases, the fan will automati-cally shut off. This is a normal condition. G060B02GK-EAT SPARKING PLUG REPLACEMENT This operation should only be performed when the engine is cold.
1. Remove the engine rocker cover.NOTE: It is recommended that the spark plug forEngine 2.7L should be changed by an autho-rized Hyundai dealer.
2. Remove plug lead from the sparking plug to
be replaced, pulling the lead by the rubber cap. (Pulling the lead may damage the carbonconductor).
3. Clean around the base of the plug to be removed, and install the plug socket ensuringthat the ceramic insulator does not becomedamaged. Turn the socket counterclockwiseto remove the plug.
YN60100A0.039 ~ 0.043 in. (1.0 ~ 1.1 mm)
0.039 ~ 0.043 in. (1.0 ~ 1.1 mm)
DOHC V6
HGK256

OWNER MAINTENANCE 6-9
SG070A1-E AIR CLEANER ELEMENT REPLACE- MENT
Prior to installing a sparking plug, the gap be- tween the centre and outer electrodes must bechecked and adjusted as necessary.Adjustment is facilitated by bending the outerelectrode towards or away from the centre elec-trode. Under no circumstances should attemptsbe made to adjust the position of the centreelectrode.
4. Insert the sparking plug into the cylinder head and using a suitable plug socket, slowly ratate the sparking plug, until the plug contacts theseating area. Tighten the plug with the plugsocket by a further 1/2 to 3/4 of a turn only. 5. Replace the plug lead ensuring that the cap is
pushed firmly into place. Confirm that the capis correctly seated by lightly pulling upon it.
Recommended Spark Plugs To replace the air cleaner element, remove theair intake ducting from the air flow sensor bodyand unfasten the spring clips holding the air flowsensor top to the body. Lift out the air flow sensorfollowed by the air cleaner element. Replace-ment of the element is the reverse of the above. CAUTION:
o The air flow sensor is a precision engi-
neered electronic measuring device andtherefore care should be exercised that theair flow sensor is not damaged duringreplacement of the element.
o When removing the air cleaner element, be careful that dust or dirt does not enter theair intake. These may result in damage tothe air cleaner element.
NOTE: When replacing the spark plugs, genuine Hyundai replacement parts are recom-mended.
RC10YC4(CHAMPION) BKR5ES-11(NGK) RC10PYPB4(CHAMPION) PFR5N-11(NGK)1.6/2.0L
2.7L*
* Platinum coated.
HGK213
HGK258HGK257