The coolant temperature is too high, the control lamp flashes while driving
Too little coolant in the system
The expansion tank must be filled to the maximum mark. Add fluid if necessary. Check the tightness of the cooling system by contacting a workshop
The thermostat does not open. Coolant circulates only in the small circuit
Check if the hoses going to the radiator get hot. If not, remove and check the thermostat. Replace if necessary.
Radiator fins dirty
Blow out the radiator from the engine side with compressed air.
Radiator clogged with lime deposits or rust
Radiator hoses do not get hot
Replace radiator.
Radiator fan not working
Replace viscous fan belt.
Check the tightness of the thermoswitch and electric fan plugs.
Check the thermal switch of the electric fan, make sure it is receiving power (ignition on, thermal switch plug contacts bridged). If power is supplied, replace the electric fan.
Defective steam valve on the cover of the expansion tank
Check the pressure cooling system. Replace cover if necessary.
Faulty coolant temperature gauge
Check the coolant temperature gauge sensor and the gauge itself.
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