engine overheat Hyundai Coupe 2004 Owner's Guide

6OWNER MAINTENANCE
10
SG050B1-E
Coolant recommendations
Only ethylene glycol based coolant with a corrosion inhibitor suited to aluminium alloy engine components should be used in the cooling system.No further additives or inhibitors should be used. The coolant specific gravity should be checked as pre-scribed in the maintenance schedule to ensure adequate frost and corro- sion protection. In addition, the en-gine coolant must be replaced at the specified interval since the corrosion inhibitor properties deteriorate withtime.It is important to note that whilst anincrease in the concentration of anti freeze gives an increase in the level of frost protection, a solution which isin excess of 65% anti freeze will result in reduced frost protection and engine overheating. Therefore therecommended concentration of 50% should not be exceeded for general use. The use of methanol based anti freeze compounds may result in engine over- heating and will invalidate the vehiclewarranty.
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ENGINE COOLANT CHECK- ING AND REPLACING
SG050A1-E
WARNING:
Do not remove the radiator cap
when the engine is hot, since the system is pressurized and coolant may be ejected from the radiator resulting in scalding. NOTE: It is imperative that vehicles fitted
with an air conditioning system have a coolant concentration of the recommended strength at all times. The use of the air condition-ing system when the cooling sys- tem is filled with water only will result in the heater matrix freezingand subsequently bursting.

10
INDEX
3
F Folding rear seat ....................................................... 1-17
Front ashtray ............................................................. 1-57
Front door edge warning lamp ................................. 1-65
Front fog light switch ................................................ 1-54
Front seat adjustment ............................................... 1-12
Fuel economy ............................................................. 2-5
Fuel gauge ................................................................ 1-44
Fuel recommendations ................................................ 1-2
Fuse panel description .............................................. 6-41
Fusible links .............................................................. 6-28
GGlove box .................................................................. 1-62
H Hatchback door ......................................................... 1-67
Rear window wiper and washer ............................... 1-53
Hazard warning system ............................................ 1-55
Headlight aiming adjustment..................................... 6-31
Headlight leveling device syst em .............................1-58
Head restraint adjustment .................... ..................... 1-13
Heated rear window.................................................. 1-55
Heating and cooling control ...................................... 1-75
Rotary type ................................................ 1-76 ~ 1-83
Automatic type ........................................... 1-84 ~ 1-91
Height adjustable front seat shoulder belt ................1-20
Horn .......................................................................... 1-69I
If the engine cannot be cranked
................................ 3-2
If the engine overheats ............................................... 3-4
If the engine will not start ........................................... 3-2
If your vehicle must be towed ..................................3-12
Immobilizer system ..................................................... 1-4
Individual circuit fuses ............................................... 6-28
Instrument cluster and indicatorlight......................... 1-38
Instrument panel illumination control ........................1-37
In the event of a puncture .......................................... 3-6 J
Jump starting .............................................................. 3-3
K Key positions ............................................................... 2-3
Keys ............................................................................ 1-4 L Lighting switch .......................................................... 1-50
Luggage net .............................................................. 1-70
Lumbar support adj ustment...................................... 1-14
M Maintenance and servicing requirements ...................5-2
Maintenance under severe usage conditions ............. 5-6
Manual transaxle lubricant .......... .............................. 6-18
Manual transaxle ......................................................... 2-6