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

ac issues with 2007 a8l

  #1  
Old 08-14-2013, 05:46 PM
ralph.schwartz's Avatar
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Join Date: Aug 2013
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Default ac issues with 2007 a8l

Hello, I am a new memeber and have recently purchased a 2007 a8l (my wife has a 2005 a6). I have an issue with the ac system where the outside vents blow hot and the center stack blows cold. I have taken it to the dealer and the only error code that comes up is for a rear footwell heater. The next step would be to replce the ac control head but this is a very expensive part ($1200 front, $450 rear). I have seen a thread for the A6 where there was a tsb for this issue and they replaced a defective pump valve. Any tips for this issue?

Otherwise I am very happy with the car.
 
  #2  
Old 08-15-2013, 01:37 AM
Join Date: Aug 2013
Location: Syracuse, NY
Posts: 14
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I've seen this happen before on an 04 A8 we had for sale at our dealership. For us it ended up being stuck flap. Not fun fixing it, have to take a lot apart. The flap is inside the dashboard, towards the heater core. There is a way to diagnose this with VAG-COM if you have it.
 
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