heater Hyundai Coupe 2007 User Guide

6
OWNER MAINTENANCE
9
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ENGINE COOLANT CHECKING AND REPLACING
SG050A1-E
WARNING:
Do not remove the radiator cap
when the engine is hot, since the system is pressurised and coolant may be ejected from the radiator resulting in scalding. NOTE: It is imperative that vehicles fitted with an air conditioning systemhave 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.
SG050B1-E
Coolant recommendations
Only ethylene glycol based coolantwith 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.

6OWNER MAINTENANCE
10
HGK4006
SG050C1-E Engine Coolant Level
The engine coolant level may be
observed through the side of the plas- tic coolant reservoir (expansion tank) when the engine is cold. If the level is below the "L" mark, add coolant ofthe correct concentration until the level is between the "L" and "F" marks. If the level falls below the "L" mark on aregular basis despite being topped up, consult a Hyundai authorised re- pairer. SG050D1-E To Change the Engine Coolant The engine coolant should be changed at those intervals specified in the ve- hicle maintenance schedule in Sec- tion 5.
3. With the heater temperature controlset to the "HOT" position, removethe radiator cap and open the radia- tor drain tap.
4. When the engine coolant has drained completely, close the drain tap en- suring that this is not over tight-ened. G050D03E
CAUTION:
Care should be taken to ensure that
coolant is not allowed to spill ontothe paintwork since the finish maybecome damaged. If coolant spill- age occurs, the affected area should be rinsed thoroughly with water.
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1. Park the vehicle on level ground and ensure that the parking brake is firmly applied, and the engine al- lowed to cool. DO NOT ATTEMPT THIS OPERA- TION WHILST THE ENGINE IS HOT SINCE BURNING OR SCALD-ING MAY RESULT.
2. Prepare a suitable receptacle to
collect the displaced coolant andposition this under the radiator drain tap.