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Thread: Air con compressor - How much?

  1. #1
    Senior Member dimi_108's Avatar
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    Air con compressor - How much?

    Took ownership of an 05 MKV GTI last night with 95,000km.
    During the test i noticed the air con did not blow much cold air. The owner said it would probably need a re-gas so took that into account with the price.

    I've recently read that the air con compressor can let go on these things.
    I just want to know how much i'd be looking at to fix this up?

    I'm still unsure if it's the actual compressor or if it just needs a re-gas.

    Any advice or help would be appreciated

    Cheers.

  2. #2
    Senior Member AP's Avatar
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  3. #3
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    Compressors aren't cheap for the VW's but with an air con system it could be any number of things wrong with it. Better to get it checked professionally, rather than just buy the comprssor in the hope that it is the issue. There is a reason an AC system loses gas, they don't just 'use it' or 'run out', and it isn't as quick and simple as just adding more gas.

  4. #4
    Senior Member dimi_108's Avatar
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    Thanks Tristan.

    It worked enough to get rid of all the fog whilst driving in the rain tonight it just wasn't super cold.
    Hoping it's just the gas though.

  5. #5
    Senior Member tylerjames's Avatar
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    I've got the same problem with my MKV, I've got it booked for a service with VW in a couple of weeks.. So I'll ask the question then, hopefully it can answer both our problems.

  6. #6
    Senior Member dimi_108's Avatar
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    Yeah seems like a common issue with the MKV's.

    I'm going to take it to an air con specialist tomorrow to check that the compressor is working. If the compressor is fine, i'll get it re-gassed as a starting point to see if that improves anything then work from there.

    Will report back tomorrow night.

  7. #7

    Hey mate congrats on the new ride. I had the same problem with mine when I bought it a few months a go... I didn't check the air con on the test drive, which was stupid of me, and only noticed a few days after ownership that the air con wasn't cold. I've done a bit of research and as you already know it's a very common fault of the MKV's.

    From what I have heard and read, the compressor is usually the culprit. It seizes up, and worst case sends metal filings through the system. Because it runs at such a high temperature the metal filings weld themselves to the air con tubing, making it a bitch to clean out. Air con specialists have the equipment to do this, and apparently it can take a few hours to flush it out completely. The compressors used up until mid MY07 golfs are the ones that are likely to seize. It is important that the tubing is cleaned out completely, otherwise when you install a new compressor any remaining debris will get caught up in the new compressor and ruin it down the track. If it is the compressor you will also need to replace the condensor and receiver dryer.

    It is a fairly big job and you need to dismantle the whole front end of the car to do the required work... I'd recommend going to a VW specialist for this reason. It's probably a good idea to go to a few different places for quotes, as it can be very expensive! After going to a few different places I was quoted at least $1000 for parts and labour. Also, you want to be confident that the job is done properly and wont give you trouble down the track.

    In my case I was fairly lucky... the compressor and other relevant parts were replaced, but the original compressor didn't explode, saving me a few hundred dollars in labour cleaning it out.

    Sucks to find this out after buying the car, it's more of a nuisance than anything else! You might be very lucky though and only have to regas, in which case all the information I have provided is redundant, lol... Unfortunately though it's most likely going to be the compressor, they are a bad design in the early MKV's and are pretty much guaranteed to fail at some point.

    Hope this has helped... Good luck!

  8. #8
    Senior Member dimi_108's Avatar
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    Thanks Dan.
    I really appreciate the time you took to type that out and share your experience. At least that gives me a good idea on what to expect.

    I have a dentist appointment today and after that, i'll take it to an air conditioning specialist and see what the go is.

  9. #9
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    If you confirm that it is the a/c compressor, try some wreckers?

    GMS Spares 9774 5184
    ASV 9725 8666

  10. #10
    Senior Member dimi_108's Avatar
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    Dave that's awesome mate.
    Life saver. I've saved those numbers into my phone.

    Just got back from the air con specialist and confirmed it's the compressor.

    So time to source a compressor condensor and receiver dryer.

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