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Thread: Air Con Leak - Low Pressure Side

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  1. Re: Air Con Leak - Low Pressure Side 
    #21
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    I love Wurth products, I have the catalogue beside my bed and read it cover to cover...
    Slava Ukraini!

     
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  2. Re: Air Con Leak - Low Pressure Side 
    #22
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    Couldn’t find anything with the leak detection dye which was a bit of a pain! Might need a brighter UV light to help find the leak I think. Still only getting 10 degrees centigrade....think the compressor must not be running correctly or is worn out.....

    any suggestions on what to do next?

    i even got the glovebox out and removed pollen filter to check the evaporator.....couldn’t see any leaks when shining a torch up there and using an inspection mirror....

    im at a bit a loss as to why the gas is leaking out (normally happens over a day or two, so has to be a fairly slowish leak, just can’t detect it).
     
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  3. Re: Air Con Leak - Low Pressure Side 
    #23
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    Those compressors are very unreliable, often made by Sanden and we fit brand new Denso units.
    Slava Ukraini!

     
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  4. Re: Air Con Leak - Low Pressure Side 
    #24
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    Replaced the compressor (Denso 1K0 820 859 T) the other day and regassed - appears to be working great now! Holding pressure. The old compressor looked damp so there must of been a leak within the unit somewhere.

    Getting around 9 degrees Celsius at the side air vent with a temperature probe.

    Was hoping it would be a little cooler.

    What do everyone else get out there? Is this value in the right ball park or should it be cooler?
     
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  5. Re: Air Con Leak - Low Pressure Side 
    #25
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    Give it time to run in which really you should do using VCDS.
    Slava Ukraini!

     
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  6. Re: Air Con Leak - Low Pressure Side 
    #26
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    What can I do on VCDS to help me? Output tests?
     
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  7. Re: Air Con Leak - Low Pressure Side 
    #27
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    There is a run in setting in basic settings but it will do it on its own over time.
    Slava Ukraini!

     
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  8. Re: Air Con Leak - Low Pressure Side 
    #28
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    Can see the high pressure schrader valve appears to bubble when the ac is in use.... so guessing there is a leak there but I

    did replace the valve with a new genuine OEM part so can only guess that Iíve got a bad replacement valve or the whole ac

    pipe needs to be replaced.


    Any ideas why this is happening?

    I made sure the valve is properly seated but still appears to bubble / leak.

    Appreciate any help or advice?

    thanks
     
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  9. Re: Air Con Leak - Low Pressure Side 
    #29
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    Been using the AC for a while now but itís performance seems to have gone down. Doesnít appear to be as cold. Must be a refrigerant leak? VCDS is showing 6bar as the refrigerant pressure. Could it be a bad compressor (even though itís brand new Genuine OEM Denso part?). Or maybe something wrong with the blend flap? Need to check for leaks again and inject with dye and get a UV lamp out again. Hopefully itís not the condenser or evaporator.
     
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  10. Re: Air Con Leak - Low Pressure Side 
    #30
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    It needs to be checked on a proper AC system test machine now. I have never had a new Denso fail but it is always possible.
    Slava Ukraini!

     
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