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C.French145
Member Since: 14 May 2023
Location: South Lanarkshire, Scotland
Posts: 70
  
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Hi All,
Just looking for a bit of advice. My AC is not working. I have rear AC and I’m sure it’s related and have booked it in for diagnostics. The pipes are all in good condition from what I have inspected. Maybe a seal.
Anyway, I have plugged the car in and read all codes. I have none. Reading this forum I have seen that low pressure will trigger. But this isn’t the case. I have read the live data and my AC gallery pressure is 12.5kpa and this is very low compared to pressures I’ve seen on here. But no fault. In addition, my compressor current is on 0A. And will not change when I engage or disengage the AC. I believe the newer compressors on the D4 have clutches. But would expect a fault to disengage the clutch etc.
Hopefully this makes sense. Like I said, it’s booked in for May. But I’m just curious.
Thank you in advance. Craig.
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Current -
Discovery 4, 2015 HSE Lux. SDV6.
Previous -
D2 2003 TD5.
110 1997 300tdi.
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 15th Apr 2024 8:46 pm |
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C.French145
Member Since: 14 May 2023
Location: South Lanarkshire, Scotland
Posts: 70
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Little bump. Any help or pointers. 😃 Craig.
~~~~~~~~~~~~~~~~~~
Current -
Discovery 4, 2015 HSE Lux. SDV6.
Previous -
D2 2003 TD5.
110 1997 300tdi.
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| 17th Apr 2024 11:48 am |
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C.French145
Member Since: 14 May 2023
Location: South Lanarkshire, Scotland
Posts: 70
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Hi all. The D4 has been in the garage for 2 day for Ac diagnosis. They have pressure tested and UV tested the AC. Alll passed. Compressor working and all main components etc. No leaks from pipes that he can see. But the pressure hasn’t altered. He says it’s good but would like too keep an eye till tomorrow.
The reason I’m writing this, is as much as I’m happy. The guy I brought the car off had the AC topped up a month before I picked it up this time last year. But when the AC guy pulled the old gas from my system yesterday, there was nothing… but he can find no leaks. Does anyone have any experience with this?
Like I said, the guy will keep it and re examine the system tomorrow. Craig.
~~~~~~~~~~~~~~~~~~
Current -
Discovery 4, 2015 HSE Lux. SDV6.
Previous -
D2 2003 TD5.
110 1997 300tdi.
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| 2nd May 2024 3:46 pm |
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sasdiscos
Member Since: 22 Feb 2013
Location: Northants
Posts: 887
 
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Normally there is an issue with the rear ac pipes on the passenger side above the back box corroding.
Steve. You remind me of a younger me, not much younger mind...perhaps even a little older!
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| 2nd May 2024 4:11 pm |
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C.French145
Member Since: 14 May 2023
Location: South Lanarkshire, Scotland
Posts: 70
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Thank you. I had a visual inspection before it went in and they looked ok. The guys seems to be putting in the effort. As he is as confused as me 😂
But he may find someone after tomorrow. Craig.
~~~~~~~~~~~~~~~~~~
Current -
Discovery 4, 2015 HSE Lux. SDV6.
Previous -
D2 2003 TD5.
110 1997 300tdi.
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| 2nd May 2024 4:33 pm |
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