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JayGee



Member Since: 27 Jul 2021
Location: London
Posts: 3205

United Kingdom 2012 Range Rover Vogue 4.4 V8 Orkney Grey

Thanks - much appreciated! 2012 TDV8 Vogue (L322)

Post #635302 23rd Jun 2022 7:33pm
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garyRR



Member Since: 13 Mar 2021
Location: Hampshire
Posts: 1465

United Kingdom 

@JayGee for you to compare, this is what I get from the IID tool:

Static / AC switched ON but is inactive:


Click image to enlarge



AC is Active with a high draw. Pressure increases and evap temperature rises slightly but is stable


Click image to enlarge



AC has been active and recently switched off. The evap temperature starts rising and the pressure starts falling back to static


Click image to enlarge
 2015 Range Rover Autobiography 4.4 SDV8

Last edited by garyRR on 24th Jun 2022 11:50am. Edited 1 time in total

Post #635347 24th Jun 2022 11:43am
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JayGee



Member Since: 27 Jul 2021
Location: London
Posts: 3205

United Kingdom 2012 Range Rover Vogue 4.4 V8 Orkney Grey

Similar but not knowledgable to know what it means apart from there is no cooling at all and there is some pressure in the system and the compressor is drawing current. 2012 TDV8 Vogue (L322)

Post #635348 24th Jun 2022 11:50am
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Bingo_123



Member Since: 19 Sep 2014
Location: Essex
Posts: 172

United Kingdom 2007 Range Rover Vogue SE TDV8 Stornoway Grey

Maybe you have a leak and system hasn't lost the gas completely yet. As the compressor is turning on.

Try getting the gas recharged, the leak test will confirm the leak.

If leak test ok then recharge will make system work fine.

If not then get the UV dye to catch the leak.

Post #635351 24th Jun 2022 12:18pm
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Phoenix



Member Since: 16 May 2022
Location: Gone
Posts: 1631

United Kingdom 

Going off pressure readings alone can be deceptive, for air-conditioning to work properly, there needs to be enough condensable gas in the system so that there can be liquid formed under pressure - the 'high' side. It is possible for there to be sufficient pressure in the system for it to work in a narrow range of circumstances and not set a DTC. The readings presented in the screenshots also have a different ambient temperature so unless you know the temperature /pressure relationship for the particular refrigerant in use, they are meaningless as a comparison.
Regardless of the screenshots above, which I note all show compressor current draw, anyone who has had any refrigeration training beyond the F-Gas refrigerant handling certification will have had it drummed into them that the first stage of any meaningful diagnosis is 'recover, leak test, recharge'.

Post #635358 24th Jun 2022 2:13pm
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Robert



Member Since: 25 Oct 2011
Location: Perigueux
Posts: 2288

France 2007 Range Rover Vogue 4.4 V8 Zambezi Silver

just found this one in the wiki, might help someone:

https://www.fullfatrr.com/forum/post273438.html

Post #635379 24th Jun 2022 4:19pm
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Dolphinboy



Member Since: 07 Dec 2009
Location: Bristol
Posts: 3141

United Kingdom 2015 Range Rover Autobiography SDV8 Baltic Blue

that's for a 2003 4.4 V8 petrol though. May differ to the 2011 TDV8.

Post #635381 24th Jun 2022 4:39pm
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garyRR



Member Since: 13 Mar 2021
Location: Hampshire
Posts: 1465

United Kingdom 

That's of the old BMW 4.4 and not the 4.4 TDV8. 2015 Range Rover Autobiography 4.4 SDV8

Post #635382 24th Jun 2022 4:39pm
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Merchy



Member Since: 14 Feb 2021
Location: North Wales
Posts: 1181

United Kingdom 2006 Range Rover Vogue Td6 Zermatt Silver

I will jump in here and go a little off-topic, if I asked for advice and disagreed with the advice given, I would......
'Disagree with decorum' Even with the best will in the world, some people will never see 'Eye to eye' but when a member takes time out to help me, even if I disagree, I am always grateful for their time / input and effort. Thumbs Up

Job done, now the bar's opening, just completed a very intensive week on a medical / first aid / initial response / diagnosis training course so really, really need a beer!!!!!..........or two. Whistle Very Happy

Post #635391 24th Jun 2022 5:35pm
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JayGee



Member Since: 27 Jul 2021
Location: London
Posts: 3205

United Kingdom 2012 Range Rover Vogue 4.4 V8 Orkney Grey

AC was working this weekend with the lower ambient temperatures than last week. Still going to get a regas and leak check this week though. 2012 TDV8 Vogue (L322)

Post #635552 26th Jun 2022 9:31pm
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mjdronfield



Member Since: 04 Nov 2011
Location: Derbyshire
Posts: 7796

United Kingdom 2011 Range Rover Vogue SE TDV8 Buckingham Blue

Think that sounds like the best first move.

Mine has the valve issue on the compressor, so I never know when mine will blow cold 🤣.

Thumbs Up 2011 Range Rover Vogue SE 4.4 TDV8

Previous cars :
2003 Range Rover Vogue TD6
1999 Discovery Td5 ES
1995 BMW M5 3.8 6 speed
1992 Range Rover 3.9 Efi Vogue
1992 BMW M5 3.8
1988 BMW 735i SE
1989 Ford Sierra XR4x4 2.9i
1981 Ford Fiesta Supersport

Post #635560 27th Jun 2022 8:05am
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kevinp



Member Since: 28 Sep 2019
Location: Telford
Posts: 1206

United Kingdom 2011 Range Rover Autobiography TDV8 Santorini Black

JayGee wrote:
AC was working this weekend with the lower ambient temperatures than last week. Still going to get a regas and leak check this week though.

Ditto, mine the same.

Post #635567 27th Jun 2022 10:05am
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Dolphinboy



Member Since: 07 Dec 2009
Location: Bristol
Posts: 3141

United Kingdom 2015 Range Rover Autobiography SDV8 Baltic Blue

don't mean to hijack, but these are my Iid tool readings yesterday. My aircon has been assessed to have no leaks but is still not very cold when needed. any comments? Is it the valve fault you reckon? it's a 2011 TDV8.

The first pic shows a remarkably high ampage but it became normal after a short while. The engine is running.

Click image to enlarge


then I took a series of pics, but still no real coolness coming out.

Click image to enlarge


Click image to enlarge


Click image to enlarge


Click image to enlarge


Click image to enlarge


Click image to enlarge


Click image to enlarge

Post #635582 27th Jun 2022 4:45pm
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mjdronfield



Member Since: 04 Nov 2011
Location: Derbyshire
Posts: 7796

United Kingdom 2011 Range Rover Vogue SE TDV8 Buckingham Blue

You might have all read this already….

https://www.fullfatrr.com/forum/topic43778.html

Thumbs Up 2011 Range Rover Vogue SE 4.4 TDV8

Previous cars :
2003 Range Rover Vogue TD6
1999 Discovery Td5 ES
1995 BMW M5 3.8 6 speed
1992 Range Rover 3.9 Efi Vogue
1992 BMW M5 3.8
1988 BMW 735i SE
1989 Ford Sierra XR4x4 2.9i
1981 Ford Fiesta Supersport

Post #635583 27th Jun 2022 4:56pm
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JayGee



Member Since: 27 Jul 2021
Location: London
Posts: 3205

United Kingdom 2012 Range Rover Vogue 4.4 V8 Orkney Grey

Doesn't look like it's cooling at all with those evap temps - what was the heater control temp set to? 2012 TDV8 Vogue (L322)

Post #635584 27th Jun 2022 4:57pm
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