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Old 10th May 2016, 07:31 PM
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As some of you know I recently bought an RS6, 2008 model MMI 2G version 5140, since getting it I have not been able to get the BT working properly.

Car was scanned and BT module was goosed.

Replaced BT module with a second hand one, phone connected fine and calls made and received fine except the person at other end couldn't hear me.

Replaced MIC with new one from TPS and they still couldn't hear me.

Scanned again and no faults with BT module, but a fault /error with MIC which we assumed was stored from old MIC, cleared fault and tried phone again, still no change, but MIC fault now gone.

Both replaced BT module and MIC now scanning fault/error free and coding looks OK as far as our limited knowledge of VCDS goes. Also checked MIC was switched on in MMI.

Firstly thanks to David's8 for his help with VCDS but we are now stumped and hoping some one can suggest what we can try next please.

Thanks in advance
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Last edited by briang9; 10th May 2016 at 08:01 PM.
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Old 10th May 2016, 09:14 PM
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You could try using vagcom to adjust the bluetooth microphone sensitvity -

Hidden menu > Diagnose >Settings >Mic sensitivity

Then choose -6db/0db/+6db
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Old 11th May 2016, 07:27 AM
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Theres also a setting for the mic for cars with sds, that may have been turned on as that stops the bluetooth using the mic. (Somewhere in vcds but can't remember where)
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Old 11th May 2016, 09:55 AM
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thanks guys, don't think it has SDS, when I press the button it says "But. not used" or something similar.

What/where is the hidden menu Neil?

thanks again
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Old 11th May 2016, 02:56 PM
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Which could still point to the mic being incorrectly coded.
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Old 11th May 2016, 03:21 PM
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Quote:
Originally Posted by PsYcHe View Post
Which could still point to the mic being incorrectly coded.
we could be getting somewhere here maybe, cos looking at the build sheet it does say "QH3 Voice control" is within the spec...
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Old 23rd June 2016, 08:35 PM
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just to close this off, turned out to be a coding issue, and thanks to a fellow member of a local Audi FB Group its now fixed
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Old 23rd June 2016, 08:42 PM
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Excellent. Glad you got to the bottom of it.
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