Cool but not cold AC on drivers side, warmer on passenger

2017 HSE here. Not a suggestion but posting my experience hoping it will help.

Just took mine in . Driver side was slightly cool and passenger side was just forced air. They did leak/pressure test and said Freon was low and refilled it. It is cooling correctly now. I have a suspicion that there is a bigger problem here since the AC should be a closed system. I am still under warranty And hoping the issue resurface within a year so I can bring it in and have them fully diagnose it.

I know this is an old thread, but will post my experience. I have the same issue with the AC. Center console driver side is cool but not cold. Passenger side is just blowing air. This is the 3rd time that this has happened. 1st time they said thye did a full pressure test and found no issues. They assumed it was low freon. Refilled and it last me 1 year. 2nd time they said the seal/ring on the compressor was not in properly and they replaced the seal. Today is the 3rd time and I am about to bring it in with the exact same symptom. It happens every year since 2018 right before summer.

If anyone have any permanent fix from their dealer that worked, let me know so I can relay the information to my dealer.

You have a refrigerant leak somewhere, end of story. If they visibly can’t find a leak using dye then good chance it’s the evaporator that has a slow leak.

There is a dye compatible with the internal lubricating oil that can be added to the closed system and lets the tech visually check all the fittings, condenser etc for a leak.

Mine was doing the samething. Added some freon and its back to normal. There is a leak somewhere in the unit. I just need to find the dye that is safe to use with the compressor oil. Also the Freon is 1234YF not 134A. Its much more expensive than the 134A. So make sure you find your leak while you are under warranty or you are gonna be spending big bucks.

The critical thing to keep in mind is that the Freon in your AC unit will last forever, so long as you don’t acquire any leaks in the system. An air conditioner’s refrigerant’s system is a closed (or sealed) system, meaning there is no way for the Freon to escape; since Freon does not get used up, as long as there are no leaks, your AC’s Freon will keep doing it’s thing indefinitely. So, if you see that your AC unit is low on refrigerant, the only answer is that your system leaks somewhere. It’s crucial that you don’t add more Freon to your unit until you have addressed the leak, as doing so would waste a lot of money.

Thanks for all the information. I will suggest the evaporator as the culprit. They did perform (I was told) a dye test and there were no visual leak 2 years ago. I have ask them to consult Land Rover corporate since this is the 3rd time this has happened. I am really hoping they fix it this year. I have another year after this before the warranty expires.

Update. Dropped the car off at the dealership few days ago. They called me back and said they found the issue and it was a leaking evaporator tube. Being a bit skeptical since this is the third time. I purchased a 1234Yf pressure gauge to start recording the pressure so I can get ahead of this if the pressure drops after I get the car back. Thanks all for the reply.

After driving for a few days, the same symptom showed up. After I got the car back, the AC low side reported 40psi at idle and 100psi after 5 minutes of running AC on max. Now it shows 0psi on low side. Will schedule a appointment and get it looked at again.

My system was low on Freon. Condenser had a pin hole in it and the dealer replaced and recharged the system. Thank goodness for the extended warranty!

drrange said:

My system was low on Freon. Condenser had a pin hole in it and the dealer replaced and recharged the system. Thank goodness for the extended warranty!

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That is good new. Especially when it is under warranty.

My car is still at the dealership and will be there for a few more days while they look for the issue again.

Yes, the reasons that the air conditioner blows too warm air are different. Sometimes this is a lack of freon, so I would not advise you to fill it yourself. But it can also be because the external unit's heat exchanger and the internal team's filters are clogged with burning, fluff, dirt, dust, and other debris flying from the street and falling from the room. As a result, the air conditioner compressor overheats and blows warm. In the end, at one moment, the compressor may jam. Here you can clean the air conditioner yourself. Here is how to do it Aircon Light is Blinking - Marvellous Aircon Servicing Singapore. I hope my answer will be helpful.

cctg893 said:

That is good new. Especially when it is under warranty.

My car is still at the dealership and will be there for a few more days while they look for the issue again.

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Hello, I'm a new member from FL and having the same issue with my 2014 RR Sport Autobiography. Were you able to get resolution on this issue?