Important: On certain Audi MMI 3G / 3G Plus configurations, updating the Bose amplifier during an MMI firmware procedure can leave the amplifier without the correct vehicle-specific parametrization. Symptoms may include missing bass, weak or incorrect sound, no rear speakers or other abnormal Bose behaviour.
In this situation the MMI firmware itself may be working correctly. The Bose amplifier may need the correct parameter dataset to be written again.
Instead of going to VAG specialist or Audi dealership and spend quite a lot of ££££ you can fix it by your self!
| Symptom after firmware update | Check first |
|---|---|
| MMI works, but Bose sounds wrong | Amplifier parametrization |
| Rear speakers missing | Bose dataset / amplifier config |
| Subwoofer has little or no output | Bose parametrization |
| Complete MMI has no sound and other faults | Diagnose MMI/MOST first |
| Bose was selected during firmware update | Parametrization strongly worth checking |
| Bose was not touched during update | Do not assume ZDC is the cause |
| VCP cannot communicate with module 47 | Diagnose amplifier/network first |
Do not upload a random Bose ZDC file from another Audi. The dataset must match the amplifier and vehicle configuration. Using an incorrect parameter dataset can result in incorrect sound behaviour
What you will need?
- VCP.
- Bose ZDC files (which are included in our product).
Now from VCP:
Go to the Guided Functions
Now in right list Module / Moduły please select Apps.
and you will see new content in main windows
In main windows Select: Upload parameter data and click Next >
Now just click Next and Next
In next windows click on to Open ZDC file.
Please select BOSE zdc file and click to Open
Now wait a few seconds to load up the files
Ok now when the ZDC file is loaded up, in ECUs select: 47 – Sound system then in Data to upload select your car variant and click to Upload selected data button.
and that’s all, your bose audio system should be restored now =)
Is there a way to do this with VCDS? I haven’t tried to apply the update yet but do have a VCDS cable and software so I could potentially use that if there is a way to fix it.
I am mostly wondering how I could go about updating the Bose system while still keeping it working in my Q7 MMI 3G system.