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A8 D4 4.2 Ticking

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Old 10-28-2021, 12:59 PM
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Default A8 D4 4.2 Ticking

Hello, I'm new to this forum and can't find anything on this so far.
It's a 2012 A8 4.2 FSI and it's been making this ticking noise and I can't pin down what it is.
I'm wondering if its timing related? If not timing then maybe it's the intake flapper? If any one could give me any insight it would be greatly appreciated!
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Old 10-28-2021, 04:31 PM
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Sounds like the injectors to me...mine sounds like a sewing machine, and that is what this sounds like to me. But others may chine in with other ideas!
Old 10-28-2021, 05:04 PM
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Originally Posted by MVoorhees
Sounds like the injectors to me...mine sounds like a sewing machine, and that is what this sounds like to me. But others may chine in with other ideas!

That would be a relief if it is, I've heard FSI engines tend to have a different sound but it almost sounds like lifter tick!
Old 10-29-2021, 06:23 AM
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Dlong22, that ticking sound is the direct injection system doing its thing. See Car Tech review below that calls it out at the 4:50 mark.


It's kind of an annoying sound but rest easy there is nothing wrong with your engine.

Good luck.
Old 10-29-2021, 07:04 AM
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Originally Posted by 2001 S8
Dlong22, that ticking sound is the direct injection system doing its thing. See Car Tech review below that calls it out at the 4:50 mark.

Car Tech: 2011 A8 Review

It's kind of an annoying sound but rest easy there is nothing wrong with your engine.

Good luck.
Oh wow that's exactly it! Thanks so much you really saved me some added stress!
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