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Fuel Gauge Issue

nohope17 Jan 14, 2014

  1. nohope17

    nohope17 New Member

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    Hi all.

    I've read lots about the fuel sender unit playing up in Audi's. Mine seems to work about 50% of the time. Sometimes not moving at all, sometime showing the wrong reading and sometimes showing the correct reading.

    The thing that I'm confused about is that my range in the DIS and the fuel warning light always works correctly. Could this mean my gauge is faulty or does the calculation displayed on the DIS not come from the level given by the fuel sender unit?

    Its a Tdi 130 if that makes any difference.

    Cheers chaps
     
  2. S4_dan

    S4_dan Fire up the Quattro! VCDS Map User

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    Have done a dial test? There is a way of making all of the dials move in sync from bottom to top and back again. Think it is done via VCDS rather than the dash buttons.
     
  3. nohope17

    nohope17 New Member

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    Thanks, No I've not tried a dial test. What is VCDS? is that the diagnostic software?
     
  4. S4_dan

    S4_dan Fire up the Quattro! VCDS Map User

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    VCDS is Vag-Com Diagnostic Software. Google VCDS and it will lead to a Rosstech website, the makers.

    If you don't want to pay for the full activated version, you can buy the Lite version ($99) and use a copy lead from eBay (£12) but uses are limited. It will scan most modules and do some tests and edit some parameters.

    Dan
     
  5. nohope17

    nohope17 New Member

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    Thanks Dan I will look into that.
     
  6. Jimmy TDI

    Jimmy TDI Pro Tinkerer Audi A4 Audi Avant Owner Group TDi

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    Do you know how to do this as mine sometimes drops 1/8 from one journey to the next, but it only tends to do it for the first half of the tank when I fill it up.
     
  7. PetrolDave

    PetrolDave Well-Known Member

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    You can't do this on the B6 or B7...with VCDS or anything else, the firmware just doesn't exist in the instrument cluster to do it.
     
  8. Jimmy TDI

    Jimmy TDI Pro Tinkerer Audi A4 Audi Avant Owner Group TDi

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    Well that's sorted that out :eiertritt:
     
  9. S4_dan

    S4_dan Fire up the Quattro! VCDS Map User

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    What dash is this then? B7? It's not the same as my B6.
     
    Last edited by a moderator: Aug 15, 2014
  10. PetrolDave

    PetrolDave Well-Known Member

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    It's not the same as my B7 either. Looks more like an A3 to me.
     
    Last edited by a moderator: Aug 15, 2014
  11. S4_dan

    S4_dan Fire up the Quattro! VCDS Map User

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    When the wife comes back I will check if I can do an output test with my A4.

    Dan
     

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