Vacuum hose help

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Jul 3, 2024 | 12:29 PM

Ron a8

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Joined: Feb 2017

Posts: 59

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Vacuum hose help

Good afternoon

I had to check engine light come on again P1068, so started my pursuit of tracing vacuum lines. I found a vacuum line that was very brittle on the left side of the engine that was part of a "Y" type adapter. As I started to check it, the hose collapsed after my finger touched it. I cannot seem to find where this hose runs to as it looks to run straight down then a sharp right..

The blue dot is the location of the hose.

This is zoomed in that area of the broken hose.

I have been searching on E manual to find where this hose might run to but not much luck.
Open to any suggestions.. thanks for reading.

Jul 3, 2024 | 01:18 PM

PaulW

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Joined: Jul 2001

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From: Wilbur by the Sea

There should be a vacuum diagram sticker on the hood, do you see one? If so, you can see where it goes to. It's just a schematic.

Jul 3, 2024 | 04:34 PM

91quattro

AudiWorld Senior Member

Joined: Apr 2009

Posts: 639

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From: Tucson, AZ

Looks like that might be #17 on the diagram. That one sits right on the engine block and is one of the first to fail because of the heat in that spot. If you plan to keep the car for a while I strongly recommend you replace all the rubber/braided vacuum hoses with silicone hoses. I did that 7 years ago and it eliminated many problems and made the car run smoothly. The hoses become brittle with age, as you have discovered. You are better off to just replace all of them now, It cost me about $30 for the hoses and took maybe 8 hours of time to trace them all and replace them. Mostly 3mm, some 5mm diameter.