Question about 2004 Audi A4

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Check engine light 2003 A4 3.0

Without any warning the check engine light came on and the car acts like it has either a clogged fuel filter or a vacuum hose disconnected. Put it on a diagnostic machine and it says misfire of cylinders 1,4,6. have'nt looked into dealer service yet.

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  • jacksteffek Mar 13, 2009

    engine light now on constant, does not run rough as it was. seem liked it was not getting enough fuel etc. never stalled . ocurred during excelleration and then suddenly cleared



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Coil packs are a very common problem on the 3.0L ASN engine. Often these are covered under an extended warranty due to the widespread issue. If not push for a goodwill contribution.
If you can delete the faults and see which cylinder misfire returns, and just replace this at first. The others may just be a one off. 3 at once is unlucky (but not unheard of). With 6 cylinders it may be worth carrying a spare.

Posted on Jan 21, 2009


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P.S Please rate me

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