Good info above!
All correct.
I have posted this multiple times but be forewarned there are errors in the part numbers for the DPS as I found out.
Also note this is version 7!! So they had a few false starts on this problem.

But since 12jagmark posted I should mention that his advice of replacing the entire compressor instead of messing around with DPS valves was worth it's weight in GOLD!
Please consider it as I wish I had!

Note I meant those pressure were UNusual! Sorry for the confusion from that typo.
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OK….. So….. Since the fan…. Worked… must be ok? I mean…. Regardless of the maybe faulty compressor valve that maybe gives or not faulty commands to boost the fan…… the fan for normal job to cool the engine works, being that I saw it spinning.
Because at this moment, that's my main concern. Is air cool is working properly or not. The fan. Yeah…. Air con…. Another problem, could be fixed by new compressor.

And…. Any idea about how to check the compressor? I mean…. I asked for a shop the refurb it. Not such a place. Nobody does those any more. So I am stranded only with the idea to change it, and shops are going to say change the radiator because it might have created metal shavings…. And clean the entire system.
All…. By guess, and the comPresser works.
I mean….. Thatsborderline stupid.
No way to check it for real…. No way to find the real problem,,,, just throw at the car some expensive parts like compressor radiator labour…. And a fan maybe just to be sure. All brand new…. About 2000 euro. With good name new compressors and brand new fan.
Second…. Only the fan….. With brand new compressor and radiator and labour… around 1500 euro.
I mean…. You get the idea. And compressor does give cold air.
In current situations…. Main concerns are about the engine cooling system. Is the fan all good? Even for fan speed boost? How to check the boost speed? Because fan is..1000 euro new. And sh.….. Again…. How to check it?
Having the problem that jaguars are very rare.…. I really don't have experienced mechanics.… and even if they exist… most likely to ask for max parts exchance to get at least the labour fee.
That's why I turned to you guys….. The communityThe problem is not that I have to change a compressor or a fan, the problem is that I have to change every thing….. Just to be sure and peace of mind. And that's.…. A bit stupid…. Just throwing new parts in the car.
Ps: not to antagonize you guys…. But I had some very different ideas on this thread about thebejavior of a fan….. Like working from the start engine alwaysor not. I respect your experience and opinions, that's exactly why I am here…..

 

If your engine radiator fan have an issue, you defently see engine temp rising very fast when driving outside of highway. The fan have PWM (pulse width control) so the speed is controlled stepless.
In normal city driving the fan propably run in every traffic lights, sepecially now in summertime, but propably only low speed so its hardly heard. (V6 have same radiator than V8, so its well capable)

Judging that you don´t seem to have heat issues with engine, i believe that if your AirCon is not working, the issue are in aircon system itself. (when your aircon have been filled last time?)
Any garage with aircon filling equipment can refill your XJ aircon.

 

Again put a set of gauges on and post back what the low and high side are reading.
The fan is just the first step. Don't load the parts cannon without a reason!

We don't really know what the problem is yet?
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Hi all, does anyone may help to locate relay(s) and fuse(s) for x351 from 2010, 3.0d?
After lot of reading changed whole compressor because it felt like it could be A/C compressor Direct Pressure Sensing (DPS) fault, but fan still is not spinning under any conditions,
on reader I see error code p0480-13, so next step should be checking fan itself, but yes, it would be nice to check relay before that, thank you!
p.s. All fuses on car has been checked, all good, but it would be nice to know also which of them are for radiator fan.

 

Why did you change the AC compressor? Did you read what was posted above? Did you measure the pressures like the Jaguar TSB said to do?
Again don't load the parts cannon without understanding what the problem is.

It's just too expensive otherwise.
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So guys… took the xj back from the shop today. Another new water pump. Seco d in 6 months.started the car….. Engine was already at normal temp, fan didn't start.…… then started the Ac and the fan started…. Normal speed and then full blast. So…. It works. Ac works….for now….. Keeps cold, and I guess the fan is ok. Didn't had the chance to take the Ac to test, and tomorrow I'm leaving for Greece. So…. For now the car is parked. After vacation will take the Ac to test…. To settle the pressure high low discussion.
Thanks for all the answers…. And happy vacation for those who go for vacation!
Wish I could have done it by car…. But maybe next year
God speed

 

Sounds like the AC compressor change did indeed fix your issue. I had a similar problem and it was the AC compressor clutch. A reman unit was cheaper than a clutch pack, so I replaced the whole compressor.

No need to check your AC pressures if it's performing adequately.

 

I'm wondering if anyone can help me get to the bottom of a cooling fan issue:

Currently own a 2011 X250 5.0 N/A and my cooling fan has stopped working. The engine overheats in traffic or when left to idle for an extended period (amber warning "Engine Temperature High", but the fan refuses to turn). The most it does at the moment is a single "twitch" every couple of minutes.

• There are no loss of coolant and the water pump is only 6 months old (replacement is OE), so I don't suspect any issues there.
• I could not remove the big 100A fuse, but judging by its appearance through the see-through part on it, it does not appear to have blown.
• The fan spins freely by hand.
• I did notice about 3 weeks before failure that the fan was spinning full-blast when the engine was still cold (after a 5-minute drive in freezing temperatures). It did strike me as odd but I didn't think much of it.

So I went on several forums and found others had solved their issue by fitting a replacement fan... so I found an original Jag one at a Jag breaker (used of course) for £100, since new ones are utterly extortionate and frankly I couldn't afford it.

Fitted it myself, accessing the connector through the wheelarch liner. Was actually quite easy to do and I am not mechanically inclined!

• At first, this replacement fan worked. Came on when the temp hit about 75°C. Went on a 20 min drive and when I got back, was spinning fine. Temperature held steady between 90 and 95°C. Problem fixed, or so I thought....
• Later that same day, drove it 30 miles and left it to idle for 5 minutes. Fan just made the occasional twitching movement. "Engine temperature high"; my OBD reader said 118°C!! Turned it off immediately as I don't fancy warped heads.

Which leaves me puzzled. Is this now an intermittent problem? How can it work on initial installation and then stop working again hours later?

Back in September I did have a problem with the PCM that caused a severe misfire and engine cutting out. I fitted a new battery, no luck. The main dealer updated the PCM, which fixed the problem. Now I'm thinking....is the PCM acting up again? My understanding is the fan works off PWM and is reliant on signals from the PCM to turn.

Sorry for not posting on the X250 forum but I am looking for the best knowledge I can get, and being the engine common in the x351 and all - I would greatly appreciate any wisdom!

 

Unless you get the car scanned with something like the factory SDD it's hard to say?
Again if the PCM has problems it will set codes that SDD can read.

With a used part there is the possibility that it has problems too. Fans get a lot of hours on them so they do wear.
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Check the connector. It feels like poor contact issue somewhere.

 

Vasara, I think you were spot-on.

I unplugged the connector and plugged it back in again - 2 months later, and we're still in business.

Just wanted to say thank you!

 

without the sdd you can't see a error? I have a icarsoft….. It shows errors of it has! Are there errors that are showed only on sdd? I have also a.…. Curiosity about my fan not starting all the time, but nothing like high temp. Actually, the temp is spot on. But I can't tell if he engages, I never hear it, iddle stationary, whenever…. Nothing

 

Right but that scanner can't read as deep into the car as SDD can. So it's common for people to post that the car has no codes when using an aftermarket scanner.
It all just depends. Some are better than others. We have a large and ongoing thread on scanners because it does change all the time.

Nothing can do what SDD can but it's such a pain to use.
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