Mute problem MMI
 

Hi,

Yesterday I replaced 5 of the 6 CDs in the changer (though this probably has nothing to do with the problem....).

About an hour later, the sound went out on me when I adjusted the volume with the small control knob of the MMI. I had to fiddle with it and it "crackled" on a couple of times then went out "permanently".

The Mute is "set" according to the MMI display, though I've tried to press the small control knob many times to shut it off....Also, I've tried turning the MMI on and off, the car on and off; and changed to different modes on the MMI, and nothing seems to work to remove the Muting (!?). Also, the switching between modes is a little sluggish (especially to and from CD).

Any thoughts?

Thanks

Did you try rebooting the MMI?
 

Not just turning it on and off--hit SETUP + KNOB + UPPER RIGHT SOFTKEY, which acts like CTL + ALT + DEL on your computer.

Oh thanks - I'll try that. Does it delete your phone book, etc, though?

Nope.
 

It's essentially a "cold boot" of the MMI system, whereas the volume knob is a "warm boot."

The only way to hard reset the system, AFAIK, is to navigate the menus to "restore factory settings." But I don't know if even that wipes out your phone book, nav locations, radio memory, voice tags, BT pairings, etc.

I tried it, didn't work unfortunately......
 

the car is now at the dealer - service guy thinks it's a fault in the lower right "soft" button (forgot to mention that wasn't working either). he will "scan" it and we'll see from there...

Thanks again.

When all else fails...
 

...remember that YOU can throw the COMPUTER out the window. :)

Ah, technology...what a wonderful thing.

Re: Mute problem MMI
 

Mike,

This sounds like a MMI control unit issue or radio amplifier issue. The MUTE icon will permanently come up if there is a problem with the sound system. In rare cases, we have seen issues with an MMI button stuck down causing "slow" reaction of MMI menu function or permanent muting of the audio system.

First check the operation of all the MMI buttons to see if they move freely and make an audible sound when pushed. If they seem to be working correctly, try pushing down on the volume control knob while turning it. On rare occasions, we have replaced MMI control/button assemblies due to failed rotary switches, but that was mostly the main MMI control knob.

If you can email me your VIN, I'll check the vehicle for TSB's, but as far as I know, Audi has only released four on MMI/Radio issue's and none of them apply in this case.

Hope that helps! If you plan to take it to your dealer, please make them aware that this happened after loading new CD's into the changer and you have manually reset the MMI with no success.

Re: Mute problem MMI
 

This same problem has happened to me.
06 a6 3.2 w/ navi ... the car is stuck on mute!

the dealer said i spilled something on the MMI buttons and i need to replace the head unit @ over $1000

Are they supposed to prove this? I don't remember dropping anything on the buttons ..

i also tried using the steering wheel volume, to no avail ..