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A8 Air conditioning problem, help me!

Audi A8 This full sized Audi A8 sedan offers interior luxury and spaciousness comparable to any car in the full sized luxury sedan class

A8 Air conditioning problem, help me!

  #1  
Old 05-26-2011, 04:41 PM
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Join Date: Dec 2010
Posts: 7
Default A8 Air conditioning problem, help me!

I have a 2004 A8, and when I put my AC on, a couple things happen.


#1 I am getting a water bubbling noise in my dash, and it drips water onto the floor on either side of the car under the dash.

#2, I get a strong cold stream out of the passenger side middle vent, but less force and less cold out of the other 3 vents in the dash.

Any idea on what is going on?

any help would be greatly appreciated

Thanks
Jason
 
  #2  
Old 05-26-2011, 06:06 PM
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Join Date: Jun 2010
Posts: 624
Default

First you MUST clean out your AC drains in the car...they ALL clog eventually:

http://www.audipages.com/Tech_Articl...tordrains.html

Should be similar to D2 instructions...not sure.

Do that first...you definitely have clogged drains now. Then see how things work. The CC system adjusts where and how much comes out of various vents, by checking multiple sensors in the vents and other places, including a sun sensor on the dash. If the air in the car feels "balanced", it is probably doing it's job correctly.
 
  #3  
Old 05-26-2011, 06:22 PM
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Join Date: Dec 2010
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Thank you, I am going to try that now.

The car definately does NOT feel balanced, it comes out strong on the passenger middle vent, but as you go to the driver left, hardly anything comes out.... and its warmer..

I'll report back if anything changes once I clean the drains.
thanks again for your help

Jason
 
  #4  
Old 05-31-2011, 08:18 PM
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Join Date: Dec 2010
Posts: 7
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Ok, so that part is solved...

However, I have NO Ac whatsoever now, its just hot air, as its 90 degrees today. I don't think this is a new development however, I think it wasn't working properly all along.
I evacuated the system, and drew out all of the freon gas.

Then trying to recharge, it only took one half of a can, and you can tell the compressor is not pumping, because it won't take anymore. Is there anyway to jump the compressor to get it pumping? or what is the deal?

any ideas?
thanks
Jason
 
  #5  
Old 06-03-2013, 03:22 PM
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Join Date: Jun 2013
Posts: 3
Default i have the same problem

is there any way to jump the compressor
 
  #6  
Old 06-04-2013, 08:30 PM
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Join Date: Jun 2013
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Originally Posted by Mkoger123 View Post
is there any way to jump the compressor
how did you fix your compressor not engaging have the same problem looking for some help
 
  #7  
Old 06-06-2013, 11:13 AM
4ringking's Avatar
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Join Date: Feb 2009
Location: Shrewsbury, NJ
Posts: 196
Default A8 No A/C

The A/C compressor is probably not kicking on for one of a few reasons:

1. A/C Compressor Clutch or control circuit is faulty.
2. A/C Pressure Switch is faulty.
3. A/C is undercharged with R134a or No charge.

Good place to start is to Auto-Scan the vehicle with VCDS.
 
  #8  
Old 06-07-2013, 09:49 AM
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Join Date: Jun 2013
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Default

i know its the compressor is it anyway to jump started it before i spend lot of money buying a new compressor??????
 
  #9  
Old 06-17-2013, 07:44 PM
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Join Date: Jun 2013
Posts: 1
Default

Hello out there; I am new to this site, But I do have a ? I have a 2004 a8L Audi that
just started to have vent control problems. I have lost the ability to control vents, the
air and blower are working. ? are the vent controls operated by Electrical or vacuum?
 
  #10  
Old 06-18-2013, 11:17 PM
4ringking's Avatar
1st Gear
Join Date: Feb 2009
Location: Shrewsbury, NJ
Posts: 196
Default A8 Vent Problems

Probably have a faulty HVAC control head. You are going to have to find a VCDS Hex-Can and scan that vehicle.
 
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