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Rich, Technician
Category: Car
Satisfied Customers: 708
Experience:  ase certified, mitsubishi certified, kia certified and landrover certified technician
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R&R heater core kia rio 2003

Customer Question

R&R heater core kia rio 2003
Submitted: 8 years ago.
Category: Car
Expert:  Rich replied 8 years ago.

Hi J Beverding,

This repair requires a bit of work, removal of the dash board is required to access the heater box and replace the heater core. Here is the manuals instruction for this. Make sure you discharge the ac before disconnecting the lines for your safety.


Good Luck,




  1. Before servicing the vehicle, refer to the Precautions Section.
  2. Disconnect the negative battery cable. CAUTION After disconnecting the negative battery cable, wait for at least 10 minutes for the SRS module to deplete its stored energy.
  3. Recover the refrigerant.
  4. Drain the cooling system.
  5. Remove the expansion valve from the evaporator core and plug the lines.
  6. Disconnect the heater hoses from the heater unit.
  7. Remove the crash pad as follows:
    1. Remove the front seat.
    2. Tilt the steering column down and disconnect the trip sensor connector.
    3. Remove the gauge cluster facia panel.
    4. Disconnect the trim clips and remove the center facial panel.
    5. Remove the fuse box cover.
    6. Remove the lower crash pad panel mounting screws and remove the panel.
    7. Remove the center lower tray.
    8. Remove the lower center facia panel.
    9. Disconnect the heater control cables and remove the heater control unit.
    10. Disconnect the gauge cluster connector and remove the cluster.
    11. Remove the radio assembly mounting screws and disconnect the audio connectors.
    12. Remove the radio assembly.
    13. Disconnect the damper from the glove box and remove the glove box.
    14. Remove the left and right side crash pad side cover.
    15. Remove air vents using a suitable pry tool.
    16. Remove the A-pillar trim.
    17. Remove the cowl side trim.
    18. Remove the main crash pad assembly.
  8. Remove the cowl cross bar assembly.
  9. Disconnect the heater unit electrical connectors.
  10. Remove the heater unit.
  11. Remove the heater core cover.
  12. Remove the heater core. NOTE Take care not to bend the inlet and outlet pipes of the heater core during removal. Click image to see an enlarged viewCrash pad exploded view-Rio
  13. Installation is the reverse order of removal.
  14. Fill the cooling system to the correct level.
  15. Start the engine and check for leaks.

Here is a larger picture



Customer: replied 8 years ago.
excuse my tardiness, i've been busy.yes i accept pretty straight forward but boy what a mess -o-fun i have to look forward to, yahoo. thanks for the help. wish me luck.
Expert:  Rich replied 8 years ago.

Good luck,

It is a bit of work.




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