Hi everyone!

I had my Jaguar XF 2008 regassed at Kwik-Fit and after it was done, a few days later I noticed there was no warm air coming through the climate control / air conditioning. Prior to regassing, there was only warm air coming out for ages, even back in the winter months. Does anyone know what could be causing the issue? Just to clarify, when the climate control is set on 23 degrees to Hi, it's still pushing out cold air through all the vents.

Thanks all, look forward to suggestions....

 

I also had a re-gas last month on my 2010 model.
I think its jut the high temperatures in UK right now, I tried my car with a similar result.

 

Just to clarify, there's no heating coming through the front vents when I have the climate control set on higher temperatures. Prior to the regas, I had plenty of heating when required....

 

UPDATE:
I noticed today that whilst cold air is coming through the front vents when the climate control is set from Lo to 20 degrees, the rear vents are sending out warm air. Is this a blender issue or something else?

 

You have to go under the lower side panel the you will see the white gearing and shafts one of those has popped out easy fix

 

Dennis, I think I may have the same issue. Can you explain more about where to find that gear?

 

Thanks for the reply....can you elaborate please?

 

DPS valve sticking, this also controls the fan, so when you switch on the aircon the fan should rotate, if it does not turn, then it will be the valve.

 

Listen to John. It's a common problem and Jaguar has released a TSB for it and it's now at version 7!!
My long and winding road with this resulted in an AC compressor replacement after screwing around replacing just the DPS.
Take a look with many pictures and part numbers. It might save you a bunch of time and money!

AC Problem with DPS

Your car your decision!
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Thanks chaps, really appreciate the advice! I'll look into this.

 

Hi John, could you specify which fan and its location please?

Photo: Also, is this the air con compressor?

 

Hi John, is this the fan you're referring to, underneath the glovebox area? (with the white label marked 'Denso'). If so, what's the easiest way to see if it's working? By removing it and leaving it plugged in as the engine is running?

 

Turn it on and unplug it, then if it's not check voltage on the plug, but you said the air was blowing

 

Could you be more specific? Turn on the car, remove the blower fan to see if it's working? It has air coming out of the two vents, albeit warm when it should be cold.

 

The radiator fan is spinning round pretty fast, there appears to be no issues with it. Cold air does blast out of the vents in the car, albeit not as ice cold as I'd have thought. Still no hot air though climate control. Engine temperature just after driving the car is 82°C.

 

Update - I think this issue is a blend door actuator. The two air conditioning pipes that go into the firewall are hot, so my engine is producing the heat. The fans in the cabin vents all blow out cold air. So I'm leaning towards the blend door actuator being stuck or faulty, whereever that is. Anyone know? I've heard it's behind the front dash/glovebox?

 

Did you read the TSB I posted above? It will tell you what to do?
Again listen to what John said.

The engine fan MUST come on anytime the AC is operating. The DPS valve problem shows up as the fan does not turn. Then put a set of gauges on and read the hi and lo sides.

It may not be your problem but it's so easy to check. Do that first and report back.
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I'm not convinced that the OP's problem is caused by an issue with the AC pressures, seems to me that Dennis is more likely to be on the right track. Or that a blend motor has failed. Have a look at the third photo in post #6 of this thread https://www.jaguarforums.com/forum/x...s-done-254220/ this set of levers is in the right-hand side of the climate control unit, accessed from above the right-hand footwell.

 

If the aircon pipes going into the firewall are both hot, surely there is no issue with the DPS or air con compressor?

 

Thanks for the link. Is that a photo of the lever for the centre right face vent? All the air con vents are blasting out cold air.

To sum up:
1. Both air con pipes going the firewall are hot.
2. All vents are blasting out cold air on all temperature ranges (which surely means there is nothing wrong with the DPS or air con compressor).
3. I can hear a faint, high pitched whirring noise coming from behing the glovebox.

Questions:
1. All of the above makes me wonder if a blend door is stuck but I'm not sure if there's a single one for whole aircon or are there multiple blend doors? Where exactly are they all?
2. At what point does the cold / warm air get blended/mixed to create the desired temperature?
3. Mine being a 2.7D has an electric PTC (Positive Temperature Coefficient) auxiliary heater which helps warm the cabin before the engine coolant gets hot. I'm not getting any warm air at all so why is this also not working and kicking out warm air?

Thanks everyone who has taken time to read and advise...!