Hello all
i have a 2011 XF Supercharged. The AC hasn’t been working well at idle or low speed. If moving at about 45 or more it works fine. Took it in and had it checked, was told coolant was fine, compressor working properly but fan is not working correctly. Any time AC is on the fan should spin, correct? It does not. As engine warms fan engages but seems to be on low.
I changed the fan but the new fan does exactly the same thing.
So now, what tells the fan when to engage and what speed to run?
is there a fan control relay or something?
any direction would be appreciated!

 

I have exactly the same problem with my 2011 3.0TDV6. Did you ever get a reply to your question, I’m guessing there’s a fan control unit somewhere..?

 

you have to replace the complete fan assembly buy a used good one for less than 500. New they cost about $900.00

 

I had the same issues. That it was the fan, then thought control unit, but it was just the pressure switch on the back of the compressor. Much cheaper fix. There was a tab for it.

 

TSB for it....

 

New 2013 XF V8 5.0 Supercharged owner here. Purchased this vehicle on 05 July 19. I have yet to receive it from the dealer due to the same issue with the air conditioning which I witnessed on the initial test drive. At first they said it was the expansion valve under the dash so they pulled it (expensive) and replaced the valve. It still did not get cold while sitting at a light or idling. They then replace the fan and had the same results, no change. The next time I visited the Jaguar dealer the technician was putting the air compressor back in. He then told me that the pressure switch on the air compressor was faulty and replaced it. Bingo! It now works as it should.
I have had lots of waiting (patience) while this ordeal has gone on. Ordering and waiting on parts etc. When it left the Jaguar dealer it went to the high end collision center to have some minor scratches taken out of the rear corner panels. I found out today that it is complete but not yet ready to pick up. Turns out that the right rear wheel has had a repair (weld) done to it and after they put the new tires on it it began to slowly leak air. Much to my surprise they have now ordered a replacement rear wheel which should be delivered early next week. I was shocked when I learned that one 20" rear Draco wheel is $1,000.00.
I cannot tell you how excited I am to finally receive this beautiful vehicle. Having only driven it one time, the day I bought it, I have been a daily reader of this forum and have learned much. I imagine that I will have questions once I do finally receive my purchase. Thanks for sharing all you owners do here. First time Jaguar owner and Thank God the dealer is paying for all of this work to be done. There is no way on earth they have made any money on this. Lost money for sure. They will get an excellent review from me.
I don't mind waiting, it is going to be worth it.

 

Does the compressor switch control the fans under the hood as well? It seems mine are not coming on either.

How hard was it to replace? How much if it was dealer did it. Thanks if you can answer.

 

I've got this issue, although it's been that way since I got it regassed after engine rebuild so it's possible that it just didn't have enough gas put in?

Anyone know the TSB #?

 

It must have something to do with controlling the fan speed also. They told me even after the new fan was installed they were getting the same symptoms (slow fan speeds)- not turning enough to keep it cool at low engine rpm's. As far as what it takes to replace it? I walked in when the technician had the vehicle lifted high off the ground and he was reinstalling the air compressor from underneath. As for how much? I can only tell you that I saw the initial invoice for pulling the dash and replacing the expansion valve which they told me was $1600.00. The new fan assembly from what I remember was $8-900.00. The total bill was nearly $2600.00 so the pressure switch had to be pretty inexpensive. Under $100.00 for sure. He showed it to me and it looked to be approximately 1-1/2" long and as round as a dime. Do you have to pull the compressor? Not having the vehicle in my possession yet I am unable to know that yet.
Good luck.

 

The mechanic also thought that his air conditioning charging unit was not putting enough Freon in the system when he initially started to diagnose the problem (this was before the new fan and compressor pressure switch but after the expansion valve replacement). He figured that someone must hav walked by and bumped his charging station causing it to give bad readings on the recharge. This was not the case though. Within the next week the fan was replaced but still no different. The following week the pressure switch. If I was doing this myself you can bet I would replace the Pressure switch first. Just as VPinGA states "Much cheaper fix".

 

Found the TSB online with a bit of Googling (attached). Looks like you have to remove the compressor to change the valve, which means you have to drain the air conditioning system. Annoying I didn't even know about this valve or I'd have changed it out while rebuilding my engine

 

Where is it located and you have a picture what it looks like cuz I just put a new/use fan and it’s still overheating and I think that’s my problem

 

any updates on this Mike and Branden?

 

Hello all, same issue, after reading a lot I think it could be DPS valve, but also it is not possible to launch engine fan from OBD,
has anyone tried to launch fan from OBD without success, but after changing DPS valve problem have been solved? thanks a lot!

 

I went thru all this on my XJR. My conclusion is to just replace the entire compressor. It comes with the DPS plus a warranty.
Here is my thread and there are two different DPS valves AND the Jaguar TSB has error's in it because I ordered what the TSB listed and that was wrong for my car and serial number. So I wasted money and time replacing the DPS and in the end a compressor swap fixed it all.
AC DPS Problem

I don't know how good a mechanic you are but it was a tough repair for me and I have now done it twice!!
I miss my lift!
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you can make the fan come on via the obd connector but you have to have a scanner with bi directional controls like a snap on modis like i use. I do not know if sdd is bi directional or not. There are other scanners that can do it too

 

As I found that there is no huge price difference between DPS and whole compressor I did what you suggest, but with no success, fan still stays still
On reader there is error code P0480-13, all fuses seems ok, so will try to do something with fan itself.

 

That code does point directly to the fan. So I would start there.
Maybe the fan controller? Just a guess here.
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What year and model is your car? The fans are known to fail, usually the controller, and the code suggests that that is the case. I also recommend checking the continuity of the wiring to the fan, especially the wire which runs directly from the ECU to the fan. On the models I am familiar with, the fan controller is integral to the fan unit and can’t be replaced separately. Genuine fan units are shockingly expensive.