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uneven idle

hubbo1 Jun 1, 2012

  1. hubbo1

    hubbo1 Member

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    hi i have an a4 tdi s line auto 2005,it has a very slight uneven idle,i have cleaned the egr valve and air intake,just wondered if there is anything else i can try?
     
  2. gary3306

    gary3306 Active Member VCDS Map User

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    When you say uneven idle, do you mean the engine doesn't tick over smoothly or there is a bit of a vibration that sort of comes and goes?

    Reason I ask is if its the latter, you may be in the early stages of DMF failure. If its vibrating slightly at idle, try dipping the clutch as its in mid vibration, and see if it improves slightly. If it is the DMF I hope you have a large wallet or an understanding bank manager.
     
  3. hubbo1

    hubbo1 Member

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    thanks-but as its an auto id be suprised if it had a dmf! lol
     
  4. gary3306

    gary3306 Active Member VCDS Map User

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    Hmm, i must learn to read posts properly. Yes, you're right, ignore my post.
     
  5. sidibear

    sidibear Looking for Zombies !! Staff Member Moderator Audi A4

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    Mine has.
    Try changing the fuel filter and have a good look for air leaks in the inlet hoses.
    One tip is to spray the hoses one at at a time with wd40 while the engine is running, if the idle goes up you have a leak on that hose.
     

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