Ringing/rattling when lifting off throttle

Discussion in 'Problems, Fixes, Tips...' started by Bleary, Apr 30, 2019.

  1. Bleary

    Bleary Copenworld Newbie

    Joined:
    Apr 14, 2019
    Location:
    Herts
    Car(s):
    660cc Copen


    Hi all,

    I brought Conan in for a service this morning and when i picked it up there was a really bad ringing noise when lifting off the throttle.
    Of course the garage were totally crap and denied any liability.
    Does anyone here have any idea of what it could be?
    I've uploaded a Youtube vid, it's not easy to hear the sound over the road noise but at around the 13 second mark it's quite clear.

    Cheers.
     
  2. welz

    welz Copenworld Regular

    Joined:
    Jun 8, 2015
    Location:
    Leverkusen, Germany
    Car(s):
    copen 2003
    If its a turbo copen, I hear only the singing turbo tune , listen o.k.

    Had you had changed the motor oil? could de airfilter loose? Check pipes..

    Kai
     
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  3. Bleary

    Bleary Copenworld Newbie

    Joined:
    Apr 14, 2019
    Location:
    Herts
    Car(s):
    660cc Copen
    Yep, just a small service, fluids & filters.
    I took it back and they had a poke around but didn't fix it.
    It is the turbo version.
     
  4. welz

    welz Copenworld Regular

    Joined:
    Jun 8, 2015
    Location:
    Leverkusen, Germany
    Car(s):
    copen 2003
    with new fresh motor oil , you often hear the singing turbo, thats ok.

    But check oil and water always every 1500 miles.

    Mine with an dx hks loader is really always a bit singing..:D short stops with the boff.



    ;)
     
    Last edited: Apr 30, 2019
  5. Bleary

    Bleary Copenworld Newbie

    Joined:
    Apr 14, 2019
    Location:
    Herts
    Car(s):
    660cc Copen
    I'm used to the singing turbo, it's the fucking dwarf on percussion that's new.
     
  6. AFR0N1

    AFR0N1 Copenworld Regular

    Joined:
    Mar 22, 2018
    Location:
    East Midlands
    Car(s):
    Daihatsu Copen L880K (KMVZW)
    It sounds perfectly normal to me
     
  7. Salieri

    Salieri Copenworld Veteran

    Joined:
    Jun 19, 2012
    Location:
    Germany
    Car(s):
    Used to have a White Copen, but I sold it in 2023
    Maybe they have installed a blow-off valve at the shop? :D
    dwarf on percussion...that's a funny thought
     
  8. Bleary

    Bleary Copenworld Newbie

    Joined:
    Apr 14, 2019
    Location:
    Herts
    Car(s):
    660cc Copen
    Yeah a friend had a lsiten today and decided it was probably the turbo.
    Makes sense, it only happens after coming off the the throttle, and not at low revs.
    I can't think why a service would make a change to the turbo noise though.

    It is a worry :(
     

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