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Weird tut noise on idle? Tdi 2.0(video uploaded)

Discussion in 'A3/S3/Sportback (8P Chassis)' started by aterro, Sep 26, 2011.

  1. aterro
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    aterro Banana Armour

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    [Sep 26, 2011]
    A3 tdi 2.0 sport 04 140

    It's making a tutting noise on idle
    Coming from cambelt side
    Around alternator area

    It's just on idle
    When rev noise goes

    It's like tut(no noise) tut ( no noise) tut tut
    Etc

    It's not constant. Every few seconds.

    Ideas?

    Drove 100 miles with it no problems. Just on idle?

    video at bottom of this post
    Doesnt sound like egr leaking.. as its definately coming from alternator area. thought the egr was gearbox side(not belt side)

    when warm it seems to disapear and then come back, but slowly coming in now and then. ive also changed my throttle body recently to a pieberg one.
    i have no fault codes according to vag.

    ideas?

    click
    [​IMG]
    Last edited: Sep 26, 2011
    #1
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  3. aterro
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    aterro Banana Armour

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    [Sep 26, 2011]
    Alternator bearings I think?
    #2
  4. jonnysimm
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    jonnysimm jonnysimm

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    [Sep 26, 2011]
    If its the same noise as mine which it sounds like it could be its ur EGR vavle leaking. ive been told i will need to replace mine at some point. It may not be that so dont hold me by it.
    #3
  5. aterro
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    aterro Banana Armour

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    [Sep 26, 2011]
    bump video in first post click picture.
    #4
  6. jonnysimm
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    jonnysimm jonnysimm

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    [Sep 26, 2011]
    Thats not the same noise as mine sorry mate but just get someone to look at it. does sound like a belt noise tho. all the best hope it isnt anything serious.
    #5
  7. vw754
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    vw754 vorsprung Durch Technik

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    [Sep 26, 2011]
    could it be the alternator belt tensioner?????????
    #6
  8. aterro
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    aterro Banana Armour

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    [Sep 26, 2011]
    its not coming from belt so to speak.
    its more alternator,aircon pump.

    im thinking its the bearings in the alternator.

    The cambelt sits further back so i know its not that(thankfully) lol

    is it the one before the alternator?
    easy to replace?
    Last edited: Sep 26, 2011
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  9. vw754
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    vw754 vorsprung Durch Technik

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    [Sep 26, 2011]
    remove the alternator belt then start the car,if it is the alternator at least that will be illiminated.
    Last edited: Sep 26, 2011
    #8
  10. aterro
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    aterro Banana Armour

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    [Sep 26, 2011]
    ^
    to remove belt,
    pull alternator tensioner(with 10mm spanner foward(towards slam panel)
    and lock it

    remove belt and start?

    there auto tensioners on these yea?
    #9
  11. vw754
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    vw754 vorsprung Durch Technik

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    [Sep 26, 2011]
    yes,i think when you pull towards the slam panel this will release the tension on the belt then you can pull the belt off,im sure the alternator has a free wheeling pulley ,which can get noisy,you can just buy the pulley and replace it. Once the belt is off you may be able to spin the pulley by hand and find out if its noisy. Heres a price/link. AUDI A3 A4 A6 1.9 2.0TDI FSI ALTERNATOR BELT PULLEY | eBay ...but shop around im sure you may find one cheaper,but try tps or audi/vw/skoda/seat........
    #10
  12. aterro
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    aterro Banana Armour

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    [Sep 26, 2011]
    Much appreciated buddy!!
    Will see how i get on next week when i get chance to look at it.

    thanks

    when putting back together.

    belt on
    line up
    and then pull out the thing thats holding auto tensioner to click back?
    #11
  13. vw754
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    vw754 vorsprung Durch Technik

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    [Sep 26, 2011]
    Yes mate.also if belt dont look too good replace it.
    #12
  14. aterro
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    aterro Banana Armour

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    [Sep 26, 2011]
    aye will do, seems like a easy job to remove it.
    hope its that now lol
    #13
  15. nally
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    nally MPG the new BPH

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    [Sep 26, 2011]
    i second this simirar to what happened to my gti
    #14

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