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2005 A4 B7 2.0tdi jerking @ 2000rpm on normal acceleration

nix Apr 19, 2014

  1. nix

    nix New Member

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    I have a 2.0 tdi that jerks at about 2000rpm on gentle acceleration NO jerk on hard acceleration,I have taken it to the "agents"Audi East london (spent 2 days there) A1 motors in Gonubie (1 day there)and N1 city Audi in Cape town(1 day there) they cant find the fault (no fault codes) its been serviced and i have changed the air & fuel filters.
    Last week i decided to disconnect the MAF sensor THE JERK DISSAPEARED and the check engine light came on, i have reconnected the MAF sensor and the jerk has returned. The MAF sensor has been tested and is NOT faulty. PLEASE HELP
     
  2. Avnt

    Avnt Active Member

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    Egr valve
     
  3. nix

    nix New Member

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    Hi
    Everything was tested (injectors,boost pressure,egr valve, N75 etc)
     
  4. All-rod

    All-rod Member Bronze Supporter

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    You would need to get it scanned for faults and do some logging while driving when this happens. It should show any abnormalities.
    It could well be the MAF.
     
    Last edited: Apr 21, 2014
  5. nix

    nix New Member

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    MAF and crank sensor changed. Still jerking and no power when taking off up hills.
     
  6. leslie76

    leslie76 New Member

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    Hi Nix,
    I have almost the same problem, bad batch of fuel ! After I filled it up again she was fine. My mechanic also reckons it could be the lift pump in the tank! So I am now just monitoring it.
     
  7. nix

    nix New Member

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    Hi,I also tried different fuels and still had the intermittent jerk. I have blocked off the EGR from the manifold and cooler and disconnected the plug. Vechicle seems to be fine (no jerking, power back)apart from the check engine light.
     
  8. leslie76

    leslie76 New Member

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    These cars have too much electronics lately!
     
  9. nix

    nix New Member

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    Hi,Blanked off the EGR and jerk has gone :blackrs4:Thanks guys
     
  10. uzi_adam

    uzi_adam New Member

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    Can I just ask...was the jerk almost like the car was cutting out and then going, cutting out then going again quickly and intermittently?
     
  11. nix

    nix New Member

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    Hi, yes it was.
     
  12. uzi_adam

    uzi_adam New Member

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    Thanks for the quick response. I've just bought a 2.0 tdi Audi A3 170 2011 and I'm having the same issues. How did you deal with the CEL light after blanking the egr?
     

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