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a3 1.8 turbo cold engine start loud screech

Discussion in 'A3/S3 Forum (8L Chassis)' started by munkyman, Apr 20, 2009.

  1. munkyman
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    munkyman New Member

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    [Apr 20, 2009]
    Hi guys,

    I just bought myself an A3 1.8 turbo sport on the weekend and noticed yesterday that on the cold engine start there was a rather loud screeching/squeaking sound coming from the engine. I tried it again this morning and the same thing. The annoying noise only lasts about a minute but it is very loud and sounds like an aircraft. It's hard to explain so I created a video of the sound. After a minute the sound goes away and is then followed by a strange whistle noise :whistle2: (you'll hear it in the video).

    Does anyone know what this could be?
    The cars done 91k miles and hasn't had the turbo changed.

    I've read the other posts on the forum regarding similar noises and I tried the common fixes including turning off the climate control and then starting but I'm still getting the same noise.

    Just a bit worried that's all and won't get a chance to take it to a garage until the weekend. In the meantime don't want to drive it could be something big like the turbo :unsure:

    Thanks in advance.

    http://www.youtube.com/watch?v=sb7xptDYus0
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  3. abdus
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    abdus Top Gear VCDS Map User

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    [Apr 20, 2009]
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  4. munkyman
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    munkyman New Member

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    [Apr 20, 2009]
    Hi. I turned the climate control off and still the same noise. I listened to the sound coming from the link you sent and it doesn't sound like that and last about a minute.
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  5. abdus
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    abdus Top Gear VCDS Map User

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    [Apr 20, 2009]
    Ah, is it the secondary air pump then...


    Sorry, I didn't actually read your post fully...lol
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  6. abdus
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    abdus Top Gear VCDS Map User

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  7. JayMc
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    JayMc Searching for 6th gear

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    [Apr 20, 2009]
    As said above. Its the secondary air pump. Make sure you check the plastic pipes to and from the pump. They become brittle and split easily which can cause the noise.
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  8. munkyman
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    munkyman New Member

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    [Apr 20, 2009]
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  9. JayMc
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    JayMc Searching for 6th gear

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    [Apr 20, 2009]
    Its mounted right next to the oil filter, front of the engine down by the sump. Same as on the Golf.
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  10. munkyman
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    munkyman New Member

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    [Apr 20, 2009]
    OK great. Thanks again everyone.

    Will let you know if it solves the problem.
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  11. abdus
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    abdus Top Gear VCDS Map User

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    [Apr 21, 2009]
    as above, it the same as the Golf MK4. The A3 8L and Golf MK4 have a lot in common
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