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A3 2.0 TDI 140, turbo/boosting problems

Discussion in 'A3/S3/Sportback (8P Chassis)' started by Dom29, Jul 20, 2013.

  1. Dom29
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    Dom29 Member

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    [Jul 20, 2013]
    hey all

    My a3 is very strange sometimes itll have loads of power other times it wont, the turbo does hiss quite a lot but heard that was common with these models?

    Anyway, say i have a car full and am going up a hill the turbo will really stuggle and on rare occasions it will cut out all together until i turn off the car completely and start it up again.

    Ive tried to see if it makes a difference when the engine is warm but it appears to be random.

    Any ideas ? thanks
    #1
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  3. NHN
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    NHN Retrofitter - Audi - VW - Skoda - Seat Site Sponsor VCDS Map User

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    [Jul 20, 2013]
    The turbo's internal parts are getting stuck & causing overboost issues & thus gives you limp mode, so if this turns out to be the case, more than likely is, then 2 options, remove & clean or swap out for new.

    Depending where you are, we could do this for you.

    Also got a brand new turbo sitting in a box to sell.
    #2
  4. Dom29
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    Dom29 Member

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    [Jul 20, 2013]
    How much are we looking at for the turbo?
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  5. NHN
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    NHN Retrofitter - Audi - VW - Skoda - Seat Site Sponsor VCDS Map User

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    [Jul 20, 2013]
    I'll PM price for ours.

    Beware of cheap units refurbed with Chinese inferior internals, that simply are not up to the task of the boost levels.
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  6. Dom29
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    Dom29 Member

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  7. NHN
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    NHN Retrofitter - Audi - VW - Skoda - Seat Site Sponsor VCDS Map User

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    [Jul 20, 2013]
    Forget it, its a temp solution that doesn't work very well tbh, only way to guarantee good results is to remove, strip, clean & refit or fit a new one.

    I've done number of these & the grime I've cleaned of them internally, would no way come of with this stuff.
    #6
  8. Mikemc
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    Mikemc Active Member

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    [Jul 20, 2013]
    As NHN said, how many miles have you done? Has the turbo been changed before in its history? Might be worth a new or recon on instead of a clean?
    #7
  9. Dom29
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    Dom29 Member

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    [Jul 20, 2013]
    the car has done 106k , i got it on 103k so dont know to much about the history!
    #8

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