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problem witch speedometr a3 8L

Discussion in 'A3/S3 Forum (8L Chassis)' started by ivanbirioukov, Apr 21, 2011.

  1. ivanbirioukov
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    ivanbirioukov New Member

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    [Apr 21, 2011]
    hi all, I have a problem with my speedometer 1.9TDI a3 8l, marks an approximate speed and only when he wants, at first thinkthat it was speedometer, byt now i change it. I've noticed that when you floor the accelerator the speedometer is showing signs of marked and sometimes make, but when I let the high speed needle down.And a change the speed sensor that goes in thetransmission.I put an cruise control bat it only lasts 1 or 2 minutes or in some cases last longer then the car starts to stick pulled and removed cruse control. The vag com does not fault, well it gives an incorrect key programing but I think it has nothing to do with the problem.
    to see if you give me some clue where I can begin.
    Greetings.

    some video



    Last edited by a moderator: Aug 15, 2014
    #1
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  3. Greig300
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    Greig300 Member

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    [Apr 21, 2011]
    Could possibly be a bad earth?
    #2
  4. ivanbirioukov
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    ivanbirioukov New Member

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    [Apr 21, 2011]
    how i can see it? where is the ground of speedometr?
    #3
  5. Dane
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    Dane Faster than a V12 Q7

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  6. <tuffty/>
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    <tuffty/> Badger 5 Edition Staff Member Moderator

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    [Apr 21, 2011]
    Are you checking the right modules in VAGCOM to test this? try doing a full scan if you haven't already...

    Whats the flashing dash light? somethings not happy...

    <tuffty/>
    #5
  7. ivanbirioukov
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    ivanbirioukov New Member

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    [Apr 21, 2011]
    yes witch old speedometr, but since i chenge it it work fine.
    #6
  8. ivanbirioukov
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    ivanbirioukov New Member

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    [Apr 21, 2011]
    in the vag scan i have only one fail
    incorrect key programing
    #7
  9. Greig300
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    Greig300 Member

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    [Apr 21, 2011]
    The main ground for the car not the Instrument cluster....
    #8
  10. ivanbirioukov
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    ivanbirioukov New Member

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  11. ivanbirioukov
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    ivanbirioukov New Member

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    [Apr 23, 2011]
    where i can see the ground of instruments cluster?
    #10

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