Hyundai Kona Quiz
Heating, Ventilation, and Air Conditioning

Repair Procedures

In this manual: Heating, Ventilation, and Air Conditioning
General Information — 17Engine Mechanical System — 85Engine Electrical System — 50Emission Control System — 26Engine Control System/Fuel System — 152DCT (Dual Clutch Transmission) System — 50Four-Wheel Drive (4WD) System — 21Propeller Shaft and Axle (2WD-FF) — 28Suspension System (without ECS) — 32Steering — 21Restraints — 38Brake System — 64Body (Interior and Exterior) — 205Body Electrical System — 1Heating, Ventilation, and Air Conditioning — 66
24steps
~144min
5/5difficulty
Done 0 of 24

Refrigerant System Service Basics (R-134a)

Refrigerant Recovery: Use only service equipment listed by UL and certified to meet SAE J2210 requirements for removing HFC-134a (R-134a) from the air conditioning system.In the event of an accidental system discharge, ventilate the work area before resuming service. Additional health and safety information may be obtained from refrigerant and lubricant manufacturers.
  1. Connect the R-134a refrigerant recovery/recycling/charging system to the high-pressure service port (B) and the low-pressure service port (A) as shown, following the equipment manufacturer's instructions.
  2. Measure the amount of refrigerant oil removed from the A/C system after the recovery process is completed. Be sure to add the same amount of new refrigerant oil back into the A/C system before charging.
System Evacuation: Use only service equipment listed by UL and certified to meet SAE J2210 requirements for removing HFC-134a (R-134a) from the air conditioning system.In the event of an accidental system discharge, ventilate the work area before resuming service. Additional health and safety information may be obtained from refrigerant and lubricant manufacturers.
  1. When the A/C system has been opened to the atmosphere, such as during installation or repair, it must be evacuated using R-134a Recovery/Recycling/Charging Station. (If the system has been open for several days, the receiver/drier should be replaced and the system must be evacuated for several hours.)
  2. Connect the R-134a Recovery/Recycling/Charging Station to the high-pressure port and low-pressure service port as shown, following the equipment manufacturer's instructions.
  3. If the low pressure does not exceed 93.3 kPa (700 mmHg, 27.6 inHg) within 10 minutes, there may be a leak in the system. Partially charge the system and check for leaks (refer to Leak Test).
  4. Remove the low-pressure valve from the low-pressure service port.
System Charging: Use only service equipment listed by UL and certified to meet SAE J2210 requirements for removing HFC-134a (R-134a) from the air conditioning system.In the event of an accidental system discharge, ventilate the work area before resuming service. Additional health and safety information may be obtained from refrigerant and lubricant manufacturers.
  1. Connect the R-134a Recovery/Recycling/Charging Station to the high-pressure port as shown, following the equipment manufacturer's instructions.
  2. Add the same amount of new refrigerant oil to the system as was removed during recovery. Use only the specified refrigerant oil. Charge the system with R-134a. Do not restart the system; the compressor will be damaged.

    Capacity 500 ± 25 g (17.6 ± 0.88 oz)

Refrigerant Leak Test: Always perform a leak test using an electronic leak detector whenever a refrigerant leak is suspected, and when performing service operations that involve disassembling, loosening or connecting fittings.If a refrigerant leak is detected, perform the following steps:
  1. Check the torque on the connection fittings and, if too loose, tighten to the specified torque. Check for gas leakage using a leak detector (A).
  2. If the leak continues even after tightening the fitting, discharge the refrigerant from the system, disconnect the fittings, and check their sealing surfaces for damage. Always replace, even if the damage is minor.
  3. Check the compressor oil and add oil if necessary.
  4. Charge the system and recheck for refrigerant leaks. If no leaks are found, evacuate and recharge the system again.

Refrigerant System Service Basics (R-1234yf)

Refrigerant Identification
  • Do not mix HFO-1234yf (R-1234yf) in the vehicle with other refrigerants, such as R-12, R-134a, etc.
  • Use only service equipment that is UL listed and certified to meet SAE standards for recovering and recycling R-1234yf from the A/C system. Do not use service equipment for another refrigerant, such as R-12, R-134a, etc.
  • Check which refrigerant is in the system if there is concern that the system has been tampered with in any way, and check the type and amount of refrigerant that should be in the A/C system, and the potential problems resulting from accidental or intentional mixing of refrigerants.
  • It is recommended to use a SAE certified refrigerant identifier to prevent incorrect recovery and, as a result, further distribution of contaminated refrigerant that could potentially damage other A/C systems and service equipment. Contaminated refrigerant (a mixture of more than one refrigerant or a refrigerant not belonging to the system) recovered by recovery/recycling equipment may lead to potential contamination of more refrigerant.
  • Some types of electronic leak detectors (heated diode or corona discharge), as well as motors, switches, and controls on recovery and recycling machines, can generate sparks that may serve as ignition sources in the presence of refrigerants classified as flammable (A2 or A3) under ASHRAE 34-2006.
  • Mixing refrigerants in the A/C system may lead to higher than expected system pressure, damage to the system and components, diagnostic errors, and/or other potential hazards to people and the environment.
  • If another refrigerant has been mixed in, collect the contaminated refrigerant from the A/C system and dispose of it in accordance with all applicable national, regional, or local regulations. Clean the inside of the A/C system with a special cleaning agent and charge with new refrigerant.
Refrigerant Recovery: Use only service equipment listed by UL and certified to meet SAE requirements for removing HFO-1234yf (R-1234yf) from the air conditioning system.In the event of an accidental system discharge, ventilate the work area before resuming service. Additional health and safety information may be obtained from refrigerant and lubricant manufacturers.
  1. Connect the R-1234yf Recovery/Recycling/Charging Station to the high-pressure service port (B) and low-pressure service port (A) as shown, following the equipment manufacturer's instructions.
  2. Measure the amount of refrigerant oil removed from the A/C system after the recovery process is completed. Be sure to add the same amount of new refrigerant oil back into the A/C system before charging.
System Evacuation: Use only service equipment listed by UL and certified to meet SAE requirements for removing HFO-1234yf (R-1234yf) from the air conditioning system.In the event of an accidental system discharge, ventilate the work area before resuming service. Additional health and safety information may be obtained from refrigerant and lubricant manufacturers.
  1. When the A/C system has been opened to the atmosphere, such as during installation or repair, it must be evacuated using R-1234yf Recovery/Recycling/Charging Station. (If the system has been open for several days, the receiver/drier should be replaced and the system must be evacuated for several hours.)
  2. Connect the R-1234yf Recovery/Recycling/Charging Station to the high-pressure port and low-pressure service port as shown, following the equipment manufacturer's instructions.
  3. If the low pressure does not exceed 87.7 kPa (658 mmHg, 25.9 inHg) within 5 minutes, there may be a leak in the system. Partially charge the system and check for leaks (refer to Leak Test).
  4. Remove the low-pressure valve from the low-pressure service port.
System Charging: Use only service equipment listed by UL and certified to meet SAE requirements for removing HFO-1234yf (R-1234yf) from the air conditioning system.In the event of an accidental system discharge, ventilate the work area before resuming service. Additional health and safety information may be obtained from refrigerant and lubricant manufacturers.
  1. Connect the R-1234yf Recovery/Recycling/Charging Station to the high-pressure port as shown, following the equipment manufacturer's instructions.
  2. Add the same amount of new refrigerant oil to the system as was removed during recovery. Use only the specified refrigerant oil. Charge the system with R-1234yf. Do not restart the system; the compressor will be damaged.

    Capacity 450 ± 25 g (15.9 ± 0.88 oz)

Refrigerant Leak Test: Always perform a leak test using an electronic leak detector whenever a refrigerant leak is suspected, and when performing service operations that involve disassembling, loosening or connecting fittings. If a refrigerant leak is detected, perform the following steps:
  1. Check the torque on the connection fittings and, if too loose, tighten to the specified torque. Check for gas leakage using a leak detector (A).
  2. If the leak continues even after tightening the fitting, discharge the refrigerant from the system, disconnect the fittings, and check their sealing surfaces for damage. Always replace, even if the damage is minor.
  3. Check the compressor oil and add oil if necessary.
  4. Charge the system and recheck for refrigerant leaks. If no leaks are found, evacuate and recharge the system again.

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