Hyundai Air Conditioner A/C Recharge Instructions
If your Hyundai A/C performance becomes poor and has been blowing hot air, the system may be low on refrigerant.
An A/C refrigerant leak can cause the system pressure to drop, making the compressor inoperative. This procedure will work if your HVAC system only has a minor A/C gas leak.
How to Recharge A/C Refrigerant on a Hyundai
What you will need
- R134a Refrigerant Recharge Kit
- Work Gloves
- Safety Glasses
Procedure
- Park the Hyundai. Apply the parking brakes, shift the gear lever to Park, and allow the engine to idle.
- Turn the air conditioner ON. Set the climate control to the lowest temperature and the blower to the max.
- Open the hood of your Hyundai. Locate the low-side pressure service port and remove the cap.
- Locate the air conditioner charging port or service port. For Elantra models, the A/C port is behind the engine near the firewall.
- If the coupler does not fit the service port, most probably you are attempting to connect your A/C recharge kit in the high-side pressure port, which is a different size than the low-side port., If you are still struggling to locate the A/C charging port on your Hyundai. In this video we will explains it all.
- Next, connect the A/C charging kit.
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Add refrigerant to your air conditioner system. Once you connect the gauge, have a look at it to read your air conditioner system’s pressure. If the pressure is low, the gauge reading will be in the white zone. If the pressure is normal, the gauge should be in the green or blue area, depending on the A/C kit you are using. You should not read in the HIGH / RED zone except when the car is turned off.
- Keep the can UPRIGHT. As you charge the system, shake the can every two or three seconds while charging. Every few seconds, release the trigger to stop the charging process. Take a look at the pressure gauge. (It is normal for the gauge to show overcharging when the engine is turned off.) Don’t overcharge the A/C system. Stop recharging the A/C system once the pressure is within the acceptable range. Measurement should only be taken while the engine is running.
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Disconnect the A/C recharge kit. Detach the quick connection from the A/C port. Reinstall the cap. Don’t overtighten the cap. Close the hood and enjoy your AC system.
Remember that a system with a large leak may lose the refrigerant quickly and require mechanic repair before being topped off with refrigerant.
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This procedure is not recommended for empty A/C systems. On an empty A/C system, the air must be extracted with a vacuum pump. Topping off the Hyundai A/C system is very easy and can take up to twenty minutes, depending on the system’s capacity.
We hope you find the Hyundai Air Conditioner A/C Recharge Instructions guide helpful. Check these troubleshooting and repair guides for more help on your Hyundai.
Frequently Asked Questions
Which refrigerant gas Hyundai uses?
R134a – Always check the sticker under the hood or the owner’s manual.
Is A/C included under the Hyundai warranty?
Absolutely, assuming your Hyundai is still under the Manufacturer’s Warranty.
When should you recharge the AC?
Your aircon will blow hot air.
Malfunctioning A/C clutch
An unpleasant smell is coming off from the vents.
Leaking Refrigerant
