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Thread: Advice on faulty DMF misdiagnosis

  1. #1
    Regular Member clightowler's Avatar
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    Default Advice on faulty DMF misdiagnosis

    Hi all,

    I am after some advice as to how often or feasable it is that the flywheel issue on the 1.9cdti150 is misdiagnosed as a dry release bearing.

    The reason I ask is that my sisters estate makes a load rattle sound from the gearbox/flywheel area when the clutch is pressed down and goes quiet when it is lifted.

    She has taken it to a friend of a friend who works for Leeds city councils garage and a backstreet garage who have both said it is the release bearing and nothing to worry about.

    The car is a 55 facelift with about 60k motorway miles on the clock (daily Leeds/Catterick and before that Leeds to Germany every couple of months)

    Obviously if it is just the bearing that would be great but my concern is if they are wrong and she ignores the noise it could end up with a catastrophic failure at speed. From what I have read on this site and others, it points that they may be. But they are the 'qualified mechanics' (phrase used loosely) as I was told when I said I thought they may be wrong.

    Any assistance or advice appreciated

    Chris

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    Regular Member barney490's Avatar
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    Hi Chris,

    usually the dmf noise is heard when the clutch pedal is up,not pressed down,so perhaps it is just the concentric slave cylinder bearing.

    have a listen to this clip http://www.youtube.com/watch?v=DIfiHkUAgWc that is a failing dmf.

  3. #3
    Regular Member clightowler's Avatar
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    Default

    Quote Originally Posted by barney490 View Post
    Hi Chris,

    usually the dmf noise is heard when the clutch pedal is up,not pressed down,so perhaps it is just the concentric slave cylinder bearing.

    have a listen to this clip http://www.youtube.com/watch?v=DIfiHkUAgWc that is a failing dmf.

    Cheers Barney, was just searching for a video on you tube lol. the noise is exactly the same as my sisters. although the caption for the video says the noise starts when the clutch is pressed not released. just like my sisters

    From what i remember on my last car which had a noisy bearing it got quieter when you pressed the pedal as the free play was removed.

  4. #4
    Regular Member barney490's Avatar
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    lol, ty, your right, the caption does say that, i always thought it was the other way round, you live and learn. Perhaps others will comment as to whether its up or down,

    cheers

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    Regular Member crespo's Avatar
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    DMF failing = Clutch down, NO NOISE. Clutch up, Rattle bang wollop.
    Hope that clears it up.

  6. #6
    Regular Member clightowler's Avatar
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    Default

    hopefully mate, tho that video is spot on, I reckon it the old "I am the qualified mechanic, you are not" routine. had the same at VX when i got mine, it kept stalling no power at low revs, went in told em EGR was 'F#@lty' they said no it isnt your just panicking. any how after three further visits they changed it now no problems with stalling and power at low revs. funny that lol

    Also found this vid on youtube of a flywheel failing

    http://www.youtube.com/watch?v=ZhLDA...eature=related

    its impressive to say the least!!

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