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  1. #1
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    A3 2.0 TDI Juddering HELP PLEASE

    Hello i wonder if anybody come give me some advice please.
    I have a 2.0 TDI A3 2004 156000 and it has started to judder like mad and some times cuts out.
    When the accelerator pedal is pushed down hard i coughs and splutters but if you lift of for a split second it goes off.
    I have removed and cleaned the EGR and anti judder valves and have this morning replaced the diesel filter and it is still doing it but since i have changed the filter i have noticed the tick over is erratic..
    I am stuck and hopefully somebody will have an idea to what it could be so any ideas please.
    Nick

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  3. #2
    JimC64's Avatar
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    Could it be a problem with fuel delivery?

    I've had similar ish issues, usually when a low speeds / low revs then asking for a little more power and you get a violent judder?

    Mines was much better after replacing the fuel filter recently.

    Going into Audi on Wednesday for a new tandem pump ( failing - oil in filter ) in tank lift pump and injector seals.

    You could have a boost leak, intercooler issues etc etc......any codes?

    Mine has now and otherwise drives fine
    MY2008 (58) XJ X358 2.7 Tdvi Sovereign LWB remapped to 245bhp, Black, Ivory leather interior with black piping, 20" Alloys

    MY2007 Audi A6 2.0 Tdi SE
    176bhp Stratos Blue, badged as 3.0 Tdi Quattro.Front & Rear park assist,Comms Pack High,Sline grille badge added, 19" RS4 alloys,Rear tints,Dipped bulbs 80W,Mainbeams & Foglights 100W,Number plate LED's,Interior LED's,First Aid Kit,Bootliner,Mudflaps front & rear,Calipers & hubs painted


  4. #3
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    Thanks for the reply been to an Audi/VW garage this morning and he said tandem pump oil seal most likley cause so taking it in Friday morning...

  5. #4
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    I had this and it was the injector wiring harness, been fine since

  6. #5
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    Finally know what the fault is thankgod..Inners of fuel tank flaking away and gone into the fuel pump..
    Took pump out of the tank and it was swimming with flaking fragments..
    So now i know what i need new tank and pump..

 

 

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