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Glow plug light flashing / no error

mm707 May 9, 2020

  1. mm707

    mm707 Member

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    Hi, happened a couple of times lately. 2.0 tdi 170.
    Glow plug light flashing, limp mode. Stop car, restart and all ok.
    No error codes showing.
    Both times accelerating a little to get up hill. Egr newish, manifold all clean.
    Any ideas ? Many thanks
     
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  3. mm707

    mm707 Member

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    Just done it again, appears sluggish beforehand. Any ideas ? Thanks
     
  4. tr7

    tr7 Member

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    What are you using to pull codes? Try and get it onto VCDS.

    Intake Manifold Flap gave me intermittent Glow plug light that would go away after restart as you say.

    (Apparently the chinesium/copy parts aren't great, so try borrow/test a genuine one if you know someone with same car.)
     
  5. AvantMike

    AvantMike Active Member TDi Audi A4 Audi Avant Owner Group S-line owners group Manual

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    DPF need clearing? What year is yours mm?
    Had this on my Seat Leon (not quite VAG but close enough - injector issue)
     
  6. mm707

    mm707 Member

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    2007, could be, been using for really short trips.
    I'm hoping intake manifold is ok, i had it off and cleaned out when replacing vacuum unit a few months back.
    I'm in wales, can't take it far or we get busted :)
     
    AvantMike likes this.
  7. AvantMike

    AvantMike Active Member TDi Audi A4 Audi Avant Owner Group S-line owners group Manual

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    If you’re able to, you can manual dpf clean (regen) I understand holding the throttle at 6k revs for a few minutes should push the car into regen.
     
  8. tr7

    tr7 Member

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    I think you mean 2k. No A4 TDI revs to 6k.

    DPF regen is like driving consistently over 2k rpm for circa 20 mins iirc.
     

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