engine overheat Hyundai Matrix 2006 Owner's Guide

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IN CASE OF EMERGENCY
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!WARNING:
Whilst the engine is running, keep hands and clothing away from mov- ing parts such as the fan and drive belts to prevent injury. 5. If the water pump drive belt is broken
or coolant is leaking out, stop theengine immediately and call the near- est Hyundai authorised repairer for assistance.
WARNING (Diesel only):
Never work on injection system with engine running or within 30 seconds after shutting off engine. High pres-sure pump, rail, injectors and high pressure pipes are subject to high pressure even after the enginestopped. The fuel jet produced by fuel leaks may cause serious injury, if it touch the body. People usingpacemakers should ensure that they keep a distance of 30cm from the ECU or wiring harness within theengine room whilst engine is run- ning, since the high currents in the Common Rail system produce con-siderable magnetic fields.!
WARNING:
Do not remove the radiator cap when the engine is hot since steam and boiling water may be ejected fromthe radiator resulting in burns or scalding.
6. If the cause of the overheating can- not be found, wait until the engine temperature has returned to normal. Then, if coolant has been lost, care-fully remove the radiator cap and add water to bring the fluid level in the reservoir up to the base of the radia-tor fill opening. Fill the coolant ex- pansion tank to the halfway mark.
7. Proceed with caution until it is estab- lished that the engine is operatingnormally. If the engine overheats repeatedly, the advice of a Hyundaiauthorised repairer should be sought. CAUTION:
Serious loss of coolant indicatesthere is a leak in the cooling system and this should be checked as soon as possible by a Hyundai authorisedrepairer.

6 OWNER MAINTENANCE
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ENGINE COOLANT CHECK- ING AND REPLACING
SG050B1-E Coolant recommended G050B01FC
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 resultingin scalding.
G050B02FC
Petrol engine Diesel engine
Only ethylene glycol based coolantwith a corrosion inhibitor suited to alu- minium alloy engine components should be used in the cooling system. No further additives or inhibitors should be used. The coolant specific gravityshould be checked as prescribed in the maintenance schedule to ensure adequate frost and corrosion protec-tion. In addition, the engine coolant must be replaced at the specified in- terval since the corrosion inhibitor prop-erties deteriorate with time. It is important to note that whilst an
increase in the concentration of antifreeze gives an increase in the level of frost protection, a solution which is in excess of 65% anti freeze will result inreduced frost protection and engine overheating. Therefore the recom- mended concentration of 50% shouldnot be exceeded for general use. The use of methanol based anti freeze
compounds may result in engine over-heating and will invalidate the vehicle warranty.
NOTE: It is imperative that vehicles fitted
with an air conditioning system have a coolant concentration of the rec-ommended strength at all times. The use of the air conditioning sys- tem when the cooling system isfilled with water only will result in the heater matrix freezing and sub- sequently bursting.