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Replace a Spare part Heater Core (Heater Matrix) – a defective one or if the limit of use has been already reached. Find out useful information about Heater Core (Heater Matrix)

Heat exchanger fulfils the opposite function of the radiator of the cooling system as it heats the air that passes through it. To ensure maximum efficiency of the heat exchanger, it is set near the outlet of the heated coolant from the car engine. It is fixed with bolts on the side of the cylinder head, which ensures reliable operation of the engine even under extreme temperatures. As a rule, fuel is fed through a heat exchanger and depends on the position of the thermostat knob. When the coolant temperature is below 18 degrees, the fuel passes through the heat exchanger. When the temperature is above 18 and up to 30, mix mode goes on. When the temperature is above 30 degrees, the fuel does not go through the heat exchanger.

It is worth also to be said that radiators in modern cars are heat exchangers that remove heat. They are installed in front of the engine of the vehicle. When on service this car part very often fails. Usually, problems arise in the core of the heat exchanger tank. To avoid overheating of the engine it is necessary immediately to fix the problem. The correct solution in this case is to replace the heat exchanger. The main reasons for replacing the heat exchanger are long term operation of the radiator, mechanical damage and increased internal pressure. Moreover, the prolonged use of coolant in the radiator of a car leads to the formation of corrosion, which in its turn will lead to clogging of the cooling system and stop the process of maintaining the operating temperature.

There are other problems with heat exchanger, for example, when coolant gets into the transmission fluid because the heat exchanger is damaged. Replacement of the heat exchanger is not a complicated process, but along with the replacement of the condenser, radiator and other parts of the cooling system, it is better to replace it in the service station. You can save on other things if you purchase a new original spare part in our online store.

Heater Core (Heater Matrix) for SKODA OCTAVIA (1U2), PEUGEOT 206 Hatchback (2A/C), CHRYSLER VOYAGER III (GS)

Faults of heat exchanger
  • the destruction of the heat exchanger rings;
  • heat exchanger blockage;
  • violation of fuel supply and exhaust system;
  • thermostat failure;
  • damage to the cylinder head;
  • external leak.
Symptoms of heat exchanger faults
  • oil getting in antifreeze;
  • difficulties in changing gears;
  • reduction in heat elimination;
  • smell of burning oil;
  • darkening of the tank;
  • insufficient fluid flow volume.
Causes of the heat exchanger failure
  • clogging of the heat exchanger;
  • impact of low temperatures;
  • poor quality of the coolant;
  • deterioration of the valve;
  • reducing the area of ​​fins contact with air;
  • the accumulation of debris.

Fault diagnosis is performed by examining the outer surfaces of the heat exchanger for dirt. You can diagnose the failure of the heat exchanger by inspecting the tank. Its darkening indicates a failure. Examine hoses and tubes, they must not have bends, and other obstacles. For a more detailed diagnosis you will require a special stand.

Repair of heat exchanger
  • To replace the O-rings and gaskets you must removed the heat exchanger from the engine by removing the bolts to the block and flange. Then remove the cover and remove the inner tube. Replace the rings, the new ones should be oiled. To replace the gaskets you need to disassemble the heat exchanger. Then install the heat exchanger, and wash several times with water.
  • Cleaning the inside part requires equipment, which forces cleaning fluid through the heat exchanger. The apparatus pipes are connected instead of rubber hoses, pressurized fluid begins to flow into the heat exchanger and circulate. Drying is done by a compressor.
  • To clean the outside of the heat exchanger you will need professional equipment.
Replacing the heat exchanger

The heat exchanger service life is 150 thousand kilometers. To replace the heat exchanger it is necessary to remove the catalyst and manifold heat shield. Disconnect the sensor, then unscrew the bolts of the catalyst, it will open up access to the heat exchanger. Remove the heat exchanger from the engine by unscrewing the bolts. Remove the tubes and the cap from the tank, drain the coolant. Replace the part, set everything in reverse order, and then flush the system with water. You can then fill in new antifreeze.

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