Question about 2007 Audi A6 Avant Wagon

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I have a 2007 A6 avant with MMI Basic inc sat nav and bluetooth. It all worked perfectly when I bought the car a few months ago. Then it started switching itself off after an hour or so of driving. During the process the speakers make a cracking sound and the MMi reboots around 10-15 times before staying on for good for the whole journey but with no sound. Everything functions fine with the MMI but there is no music, sat nav voice or BT. I took it to main Audi dealer and they disconnected the BT module but this made no difference. I think it must be a problem with the connection between the MMi and the sound module, if there is such an item! Its driving me mad! Any advice would great! If parts need replacing I'll do it as I just want it to work correctly. Are there any connections I can check? I can't find and of the modules etc. Thanks Mark

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  • Audi Master
  • 395 Answers

I bet that rear screen washer lines are broken and fluid damaged electronic under trunk trim.

Posted on Dec 07, 2015

6 Suggested Answers

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  • 2 Answers

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Posted on Jan 02, 2017

  • 42 Answers

SOURCE: MMI screen upgrade

Sorry, not posible.

Posted on Dec 06, 2008

  • 10 Answers

SOURCE: 06 A6 MMI radio switches on and off every few seconds. Bluetooth

Your most (fiber optic) system is inoperative. Its most likely your CD player and the bluetooth is an update issue, if it doesn't take the update then you need to replace your telephone transceiver.

Posted on Jun 18, 2009

  • 1 Answer

SOURCE: Hi my MMI system on 2004 A6 asgone dead, no power

No solution, same problem, but had many strange moments: 4 months ago during 100 kms or so it stopped, then suddenly came back, and worked ever since. A few days ago, it started happening again: NAV stuck, then radio dead, and gradually the rest disappeared. I did a Reset, and since that moment I see the intro-screen and then it goes black. Hitting the TEL button is somehow also a Reset...

Do the previous 2 posters have anything to report on this matter? It would be VERY welcome!

Thanks,
Jeff

Posted on Mar 12, 2010

  • 15 Answers

SOURCE: 2005 a6 mmi displays will not work. where is she

Hi,

I can help for you. I'am live in London. Contact e-mail address: info@headunit-repair.co.uk or visit my site : www.headunit-repair.co.uk

Posted on Sep 07, 2010

  • 1 Answer

SOURCE: My Audi A6 MMI system shits down and reboots every

I too have exactly the same problem did you ever find a fix?

Posted on May 08, 2011

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No solution, same problem, but had many strange moments: 4 months ago during 100 kms or so it stopped, then suddenly came back, and worked ever since. A few days ago, it started happening again: NAV stuck, then radio dead, and gradually the rest disappeared. I did a Reset, and since that moment I see the intro-screen and then it goes black. Hitting the TEL button is somehow also a Reset...

Do the previous 2 posters have anything to report on this matter? It would be VERY welcome!

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Sorry, not posible.

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