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Thread: uneven idle

  1. #1
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    uneven idle

    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?

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    gary3306's Avatar
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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.
    A4 S-Line. Mods so far; Cruise, DIS, Mk2 RNS-e, Audi 6 CD changer, XcarLink with self manufactured permanent ipod dock, B8 MFSW, Dectane Dayline Headlights with independantly switched DRL's, RS4 Rear ARB, De-badged, RS4 pedals, HIDS, RS4 front grille and RS4 style fog surrounds, LCR splitter in Satin Black, Rear Park Assist, LED gearknob, Red footwell lighting, Kitchen sink and Shower cubicle.




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

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    Hmm, i must learn to read posts properly. Yes, you're right, ignore my post.
    A4 S-Line. Mods so far; Cruise, DIS, Mk2 RNS-e, Audi 6 CD changer, XcarLink with self manufactured permanent ipod dock, B8 MFSW, Dectane Dayline Headlights with independantly switched DRL's, RS4 Rear ARB, De-badged, RS4 pedals, HIDS, RS4 front grille and RS4 style fog surrounds, LCR splitter in Satin Black, Rear Park Assist, LED gearknob, Red footwell lighting, Kitchen sink and Shower cubicle.




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    Quote Originally Posted by hubbo1 View Post
    thanks-but as its an auto id be suprised if it had a dmf! lol
    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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