Kia Cee'd Quiz
Heating, Ventilation, and Air Conditioning

Heater Core Repair Procedures

In this manual: Heating, Ventilation, and Air Conditioning
General Information — 15Maintenance — 7Engine Mechanical System — 84Engine Electrical System — 49Emission Control System — 22Fuel System — 95Clutch System — 28Manual Transmission — 21Dual Clutch Transmission (DCT) System — 47Drive Shaft and Axle — 20Suspension System — 36Steering — 23Restraints — 39Brake System — 54Body (Interior and Exterior) — 209Body Electrical System — 254Heating, Ventilation, and Air Conditioning — 56
5steps
~30min
2/5difficulty
Done 0 of 5

Replacement

  1. Disconnect the negative (-) battery terminal.
  2. Remove the heater and blower assembly. (Refer to Heater - "Heater")
  3. Remove the heater core cover (A) after loosening the mounting screws.
  4. Pull the heater core (A) out of the heater unit.
  5. Installation is the reverse of removal.
    • If installing a new evaporator, add refrigerant oil (PAG oil).
    • Replace the O-rings with new ones at each fitting and apply a thin coat of refrigerant oil before installation. Be sure to use the correct O-rings for R-134a or R-1234yf to prevent leaks.
    • Close the oil container cap immediately after use and seal it to prevent moisture absorption.
    • Do not spill refrigerant oil on the vehicle; it may damage the paint. If refrigerant oil gets on painted surfaces, wash it off immediately.
    • Apply sealant to the bushings.
    • Check that there is no air leakage.
    • Charge the system and check that it operates properly.
    • Do not interchange the heater inlet and outlet hoses, and make sure the hose is securely connected.
    • Fill the cooling system with engine coolant.

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