Hello

I'm new to the forum just purchased my first Jag and having what I think is a problem with the air. No matter whether auto or sync is on or off the air fluctuates from cold to warm every couple of minutes. Never seems to settle in. It will start out getting cold (does not matter if it's set on 62 - 72) then all of a sudden it starts blowing warm air, then cold a couple of minutes, then warm again etc. Dealer says this is normal based on settings but does not seem right to me. Am I missing something?

 

I noticed something similar as well. It starts blowing ambient air for a couple of minutes then reverts back to cold. It doesn't do it at any intervals that I could notice. You would think that it would just shut down or lower the blower force if it needed to mix air but the fan always stays the same speed. One thing I don't like is the auto fan speed even at the lowest setting is too forceful for me. Manual fan speed can be adjusted lower but then you lose the auto feature.

 

Is it possible you have the rear temperatures set wildly different from the front and the system is fighting with itself?

 

No it's not the rear temp. It has to do with the Florida weather and ambient temp outside. I think the system has a problem blending because of the high temp and humidity.

 

I think that is probably right. Here in Southern CA it is usually dry and the AC works fine. On hot humid days it seems to blow hot and cold and allows the warm humid air to enter the cabin. I might suggest trying recirculation mode so it recircs the cabin air and less from outside.

 

Yes Magnumforc it's the humidity that is the problem. Tried the recirc latched but it still has the problem. Contacted Jaguar to see if they have a fix.

 

Does sound like a system problem associated with blending. Maybe a lag between sensors and flap operation. Please let us know what they say.

 

I will let you know what they say I have contacted Jaguar Land Rover.

 

I noticed this on mine (2016), also in FL. It drove me nuts at first. I bumped the standard temp down a bit which helped but then realized it was related to Auto Stop/Start. If you disable the Stop/Start (have to hit the button every startup) that might prevent the cold/ambient switcharoo it's doing. Worked for me anyways. Good luck.

 

Had this too. Had it fixed.

Old thread, I know. But it's NOT normal. I'm in the Orlando area and had the exact same issue and my car required an all new AC compressor. Fixed everything.

 

Hey ArnoldKay, I'm interested in how they determined the compressor was the problem. I took mine back to dealer and they put testing equipment on it and said everything was functioning normal.
One thing I did notice it is much worse in eco mode.

 

Owners Manual: "The ECO driving mode may also make subtle changes to the level of the cabin's air recirculation and to the level of heating or cooling."

 

Last year they didn't have the proper testing equipment to test the new ACs. So they used analogue thermometers and such. They checked freon, and all sorts of other stuff, looked for air in the lines, etc. They drained, bled, refilled. Then they thought the AC was fixed, and told me it was ready. I picked it up, drove it for 15 minutes back home, turned back around and dropped it off again. It was still the same.

We compared the loaner '16 XF to my 16 XF. The problem persisted. Jaguar's tech team overseas instructed they try all of the other stuff first before they authorized a new compressor. So at that point, once I returned the car, we compared the ACs between the loaner and mine, they called Jaguar again and were allowed to replace my compressor.

It's been perfect since.

Where in Florida are you?

 

Hi again ArnoldKay, dealer told me they put a tester on/in vehicle and let it run for over 30 minutes and it was running within parameters. I'm located in Lithia and dealer is Tampa.

 

Parameters is non sense. Mine told me the same at first, but then they came around to admitting something is wrong. The fluctuations were just too much.

If you want, make an appointment with Orlando Jaguar. They will provide you a loaner even if you didn't buy from them (just make sure to specify you only want a Jag loaner, no Maxima or Jeep).

You can ask for my friend Corbet (although he is leaving this week) or his replacement Chris Baker and say that you know Arnold who had the same issues with his white 2016 XF and had his compressor replaced because his AC never kept the air cool, always fluctuating between warm air and cool-ish air.

 

Thanks ArnoldKay, I will contact Orlando dealership and make appt. and let you know how it works out!