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2.0tdi bkd vibrations in the cabin on idle

Discussion in 'A3/S3/Sportback (8P Chassis)' started by SAiLO, Sep 9, 2009.

  1. SAiLO

    SAiLO Well-Known Member
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    Hi,

    Has anyone experienced the car vibrating on idle, which is detectable in the cabin, when the engine has warmed up? After driving for 15-20 minutes, when I stop on traffic lights, I can feel the engine vibrating, that does not happen when the engine is cold.

    I am sure this was mentioned before, but not being able to find it, I'll ask.

    Thanks.
     
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  3. Boydie

    Boydie Boycie
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    Dodgey flywheel wheel which is a common fault in most of the TDI range throughout VAG

    Can be replaced but at a cost
     
  4. devonmikeyboy

    devonmikeyboy As far from JBS as possible !

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    Could be the flywheel as mentioned but i would be surprised if it is in this case as the DMF flywheel doesn`t warm up so would vibrate all the time not just when the engine is hot.
     
  5. SAiLO

    SAiLO Well-Known Member
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    That's what I was thinking, as when the engine is cold, there is no symptoms.
    Maybe EGR valve or something ?
     
  6. kaz219

    kaz219 Active Member
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    if you put the AC on, does it go away when idlign rough or not idle as rough.

    If thats the case, it will be your timing torsion.

    Mine had exactly the sae symptoms as yours and adjusting the timing sorted it.

    There's a vid floating about by me under the thread rough idle demonstrating this
     
  7. SAiLO

    SAiLO Well-Known Member
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    Saw the video kaz, it's not like what used to happened to your car.
    Putting the AC on does not make a difference.
     
  8. Boydie

    Boydie Boycie
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    My idling was intermittant - some days it would be bad, some not so bad, some terrible

    usually pointing down a hill it went away completely!
     
  9. kaz219

    kaz219 Active Member
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    more than likely dmf mate...
     
  10. SAiLO

    SAiLO Well-Known Member
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    I'm planning a remap soon, just wondering if I should go ahead with it or replace the dmf before... ?
     
  11. Boydie

    Boydie Boycie
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    remap will not affect the DMF but will cost a bit - if you are replacing the DMF, I would consider replacing the clutch too
     
  12. devonmikeyboy

    devonmikeyboy As far from JBS as possible !

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    Of coarse a remap will affect a DMF. With a remap the car will be making more bhp and torque. The torque goes through the DMF and clutch putting a DMF mechanism under more pressure and therefore more likely to fail same as a remap will make a slipping clutch worse for the same reason.
     
  13. SAiLO

    SAiLO Well-Known Member
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    I guess I'll see how it works after the remap and then decide what to do with it . Anyone knows the approximate cost of dmf & clutch along with the cost of the replacement?
     

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