How to charge air conditioner Hyundai vehicles

If your Hyundai A/C has been blowing hot air not cold, there is a chance the system is low on refrigerant. In this guide, we will show you how to recharge the air conditioner on your Hyundai.

Charging Hyundai A/C system is very easy and can take between up to 20 minutes depending on the system capacity.

What you will need


Start Engine

Start the engine and let it to rechage hyundai elantra a/c

Turn On A/C

Turn the air conditioner ON. Set the climate control to the lowest temperature setting and blower on a/c blowing hot how to fix recharge with freon hyundai elantra

Open Hood

Open the hood of your Hyundai. Locate the low-pressure air conditioner service port and remove the cap.

Locate A/C Charging Port

how to recharge ac hyundai elantra diyLocate the air conditioner charging port or service port. In the Elantra, the A/C port is located behind the engine near the firewall. air condiotioner hyundai elantra how to charge

If you are still having trouble locating the A/C charging port on your Hyundai this video explains it all. 

Next, connect the A/C charging kit. 

Add refrigerant to your air conditioner system

Once you connect the gauge, take a look at the gauge to read the pressure in your air conditioner system. If the pressure is low the gauge reading will be in the white zone.

If the pressure is normal then the gauge should be in the green or blue area depending on the A/C kit that you are using. You should not have a reading on the HIGH / RED zone except when the car is turned off, in which case it is normal.

Always keep the can UPRIGHT. As you charge the system shake the can every two or three seconds while you are 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 overcharged with the engine turned off.) 

Don't overcharge the A/C system. Stop recharging the A/C system once you get the pressure within the acceptable range. Measurement should only be taken with the engine running.  

Disconnect the A/C recharge kit 

Detach the quick connect from the A/C port. Reinstall the cap. Don't overtighten the cap. Close the hood and enjoy your AC system.


Keep in mind that a system that has a large leak may loose the refrigerant quickly and will require repair before being topped off with refrigerant. 


What type of refrigerant do Hyundai vehicles use? 


 Is A/C covered under Hyundai warranty? 

Yes as long as the vehicle is under manufacturers warranty. 

By YOUCANIC on Jul 29, 2019


Disclaimer: Youcanic has made every effort to assure the accuracy of the information on this page. Neither Youcanic nor its affiliates assume responsibility for any loss or damage due to any errors, omissions, lack of information. You agree to hold Youcanic free from any liability arising out of the use of any information contained within. All pictures and references to trademarks and car names are for reference only and do not imply an association with the manufacturer. Consult your owner's manual or authorized factory manuals when performing repair procedures. By entering this site, you agree to our Terms & Conditions and Privacy Polity.