emissions part - not sure what it is

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09-04-2016, 11:00 AM

vitamin

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emissions part - not sure what it is

Hi,

I found a vacuum leak coming from a, what looks to be a diaphragm, and am wondering if anyone has a name for it so that I can get the part.

See video. Thanks!

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09-05-2016, 03:56 AM

georgeb944

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Does this look like it? Original part number 078611933B

https://www.ecstuning.com/Audi-C5_A6...Intake/ES3314/

Last edited by georgeb944; 09-05-2016 at 03:59 AM.

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09-05-2016, 05:54 AM

SloopJohnB@mac.com

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Can't hardly tell, but you could remove it and look for the

Quote:

Originally Posted by vitamin

Hi,

I found a vacuum leak coming from a, what looks to be a diaphragm, and am wondering if anyone has a name for it so that I can get the part.

See video. Thanks!

Audi Emissions Part - YouTube

p/n stamped on the part.

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09-05-2016, 09:47 AM

johnkk

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George is correct. It's a check valve that works with the N249 to prevent boost from feeding a vacuum tank. It also allows vacuum from said tank to open the diverter valves faster via N249 when you let off the accelerator before vacuum has built up in the intake.

The ECS part has an extra nipple that you cap off.

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09-12-2016, 04:38 PM

vitamin

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Quote:

Originally Posted by georgeb944

Does this look like it? Original part number 078611933B

https://www.ecstuning.com/Audi-C5_A6...Intake/ES3314/

Ahhh, great...thanks. That part looks very much like mine. As @johnkk, said, that part has an extra nipple on it that I can either block off or I can search for the exact part.

That sends me down the right path. Thanks again.

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