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  1. #1
    Bean5's Avatar
    kidney bean

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    HELP. buzzing/wiering/humming noise on cold start up?

    As above guys, been happebing for a couple of days, when I start my 2004 a4 1.8t
    I get a strange buzzing/humming noise, sounds a bit like when the fan kicks in after/on a lobg journey,

    had a look under the bonnet, and cant locate it to something specific, although it seems to be coming from the o/s

    I have checked my power steering levels, water/coolant levels, all are ok.

    So I went out this morning to film the noise on my phone and it didnt do it and It isnt particularly warm. Typical

    Can anyone help me. If I can find out what it is and replace/fix it im happy, just dont want to make it worse.

    Cheers
    Next Steps. (wanted)
    s`line steering wheel
    oem interior mods
    milltek exhaust system..
    window tints.

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  3. #2
    marktdisport's Avatar
    5th Gear

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    Jul 2011
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    HELP. buzzing/wiering/humming noise on cold start up?

    Secondary air pump
    A4 TDI 130 SPORT..
    now sold but still in the family, gone back in time to the cupra R again..

  4. #3
    Bean5's Avatar
    kidney bean

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    Big job? Expensive? Gonna get worse?/ok to drive?
    Next Steps. (wanted)
    s`line steering wheel
    oem interior mods
    milltek exhaust system..
    window tints.

 

 

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