MMI 2G Bluetooth No Sound or MIC

Sometimes after replacing the Bluetooth Module (under the driver seat A8 or Q7), the Phone would pair to the car, but the steering button, sound and microphone don’t work, most of the time, the settings on the Bluetooth module wasn’t done correctly. You do need an OBDII like VCDS (VAG-COM) to enable it again.

Read Forum Threads For A8 D3 and Q7 Bluetooth.

  • Telephone Coding Address 77 – should be set to 100900 then 100970 then back to 100900 and do soft MMI restart – Setup+Big Round Button+ Upper right MMI selector.

Q7 Address 77 Telephone MMI 2G     Q7 Address 77 100900 Telephone MMI 2G

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