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  #1  
Old 27th March 2009, 01:01 PM
JamesA8
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Default D2 Aircon valve?

Hi all.

My aircon isnt working, the Pump dose not come on and its getting a bit like summer.

Dose anybody know were the location of the LOW pres. valve is in the system?

Any help would be great.
.
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  #2  
Old 27th March 2009, 02:06 PM
Conan_the_Librarian's Avatar
Conan_the_Librarian Conan_the_Librarian is offline
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Three possible answers here,

Does the clutch engage when you switch between economy mode and normal?
Is the system pressured?
Could the pump be U/S?

VagCom can test the clutch working if you have access to it.

Quick fit do an aircon service whereby if they can't reduce the temperature by 10% or more you get it free. Give them a try first which will bowl out under pressure if it works after they have finished
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Currently,
2000 S8, Merlin Purple, Leather Pack 1, Winter Pack 1, SPAX adjustable suspension, AP Racing 6 pot front caliper, 385mm fully floating disks, EBC Yellow Stuff Pads, Black Diamond grooved rear disks and predetor pads, D2 Doctors Brake Block.
1997 4.2 A8SQ - the Projekt. 12 years and ongoing!
1997 4.2 A8SQ - Ming Blue. Restoration sat waiting; saved from the Scrapyard
2003 C5 Allroad 4.2Q - Cobolt Blue. Towing car. Laid up awaiting manual conversion.
2005 C5 Allroad 2.5TDi FE - Grey - Workhorse.
2015 Q3QS SLine - Daytona Grey. Lots of extras! Long Haired Admirals cutter.

Previously
2003 C5 A6 1.9TDI FWD - Loaner from D2 Doctor Lifex
1997 S8 - Ming Blue. Loaned out and written off. I loved that car. My first engine swap after cambelt failure.
1996 4.2 A8SQ - Ming Blue. 178k on a cambelt! Trader's 8. Delivered to A8Parts at Lifex.
2003 2.8 A8SQ - powder blueish. Fill in for a while. Sold on.
1998 1.8T A4 Avant FWD. Ming Blue (there's a theme here), PEX for the 97 S8.
And a list of non VAG going back 40 years before I saw the light.
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  #3  
Old 30th March 2009, 08:49 PM
JamesA8
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The clutch dose not engage when I go from econ to normal.

I know the A/C has a pres switch on it to protect the pump if the pres is to low, but if I cant find the LOW pres valve I cant see how I can check the pres.?

I did have VAGCOM till I dropped my laptop a week ago. I will have to try and steal a mate laptop to check the clutch.

Cheers for your help Conan (the Librarian).
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