2001 A6 2.8 Vacuum diagrams? - AudiForums.com
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Old 04-11-2011, 02:22 PM
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Default 2001 A6 2.8 Vacuum diagrams?

I looked all over and i cannot find any vacuum hose diagrams for my 2001 A6 2.8. Anyone have these to share? Thanks
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Old 04-11-2011, 02:44 PM
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Follow up. If anyone would take a picture of their vacuum setup that would work too. Thanks.
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Old 04-12-2011, 12:04 AM
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Click the image to open in full size.

There is one under your hood too.
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Old 04-12-2011, 08:01 AM
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I found mine too, thank you. The only vacuum line disconnected was the reservoir. What is the name of the hard plastic line below? * Mine snapped, will it make the motor run horrible?
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2001 A6 2.8 Vacuum diagrams?-28vacuum.jpg  
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Old 04-12-2011, 11:57 AM
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That is your crank case breather hose. Yes it will make your car run rough. You can find it here.

Judging by the picture, I recommend that you pick up about 5 feet of 3/16" vacuum hose from local parts shop and replace all vacuum hoses. Just replace one at a time to track where it goes.
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Old 04-12-2011, 11:59 AM
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Oh, don't forget to reconnect the vacuum reservoir line to the front of the car. The original plastic gets really brittle. I had to replace mine just over the weekend when I was replacing the valve cover gaskets. It pretty much disintegrated.
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Old 04-12-2011, 12:15 PM
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Quote:
Originally Posted by hxgaser View Post
Oh, don't forget to reconnect the vacuum reservoir line to the front of the car. The original plastic gets really brittle. I had to replace mine just over the weekend when I was replacing the valve cover gaskets. It pretty much disintegrated.
Thank you very much for the replies. Picked up silicone vacuum line and will replace them tonight. Any idea what sensor this is to the right of the crank pulley? It has a nipple connector.. maybe it needs a pigtail or something?
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2001 A6 2.8 Vacuum diagrams?-sensor002.jpg  
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Old 04-12-2011, 12:54 PM
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Oil temp sensor - it screws into the oil pump housing.
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Old 06-14-2012, 09:43 PM
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Default 2001 A6 2.8 Vacuum Reservoir Location?

Sorry for posting to this old thread but you all had excellent info that sheds light on our problem. My daughter's 2001 A6 2.8L AT with 148K miles has a hard plastic 3/16"? hose above the driver's side engine bank going towards the front of the engine that is not connected. We plugged it with a rubber cap but it appears to go to the vacuum reservoir seen in the first diagram of this thread and highlighted by hxgaser's post. Can you tell us where this vacuum reservoir is located in the engine compartment? We can't locate it but we assume it is somewhere close to the driver's side wheel well or close to it. We don't have the Bentley manual for it and hope to get one soon. Thanks in advance for any help. Sincerely, Chuck

Last edited by chuck_eglin; 06-16-2012 at 08:48 AM. Reason: Left off important information required by moderators
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Old 06-19-2012, 11:49 AM
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Take the driver side wheel off and remove the plastic wheel well cover. It looks like this.

Click the image to open in full size.
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Old 06-20-2012, 08:59 AM
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Thanks hxgaser. Your post about connecting that line at the front of the engine compartment should help us locate the broken line going to the reservoir. We will check it out and repair it. We are getting a Bentley manual off of eBay so that should help us quite a bit.
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Old 06-20-2012, 12:30 PM
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Bentley manual is worth its weight in gold for an Audi owner. Have fun.
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Mods - Was chipped, but not now... Was using K&N, but not now...
Repairs - Too many to list! And you wonder why I still drive an Audi So I don't drive one now.
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2001, 28, a4, a6, audi, belt, brittle, diagram, hose, line, lines, plastic, routing, tensioner, timing, vacuum


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