D3Audi

Was rushing the other morning and coffee went all over the 2G MMI button pad of my 2008 Q7.. I quickly wiped it up and all was fine yesterday. Even this morning it was fine, but at lunch I had to run home and the button pad was unresponsive, only the scroll wheel and volume **** work.. audio is fine and it plays music but I can't change the channel.. after about a minute the system shuts down and reboots.. I think it's ruined

can i I buy a used button pad on eBay? (They're like $299) and will there be extra coding with it, or will I be able to plug it in and it will work?

I also see that I could replace the board.. that seems a lot harder

what are my options?

Greystoke

Can you pull it apart and clean the circuit traces? Most issues are caused by stray shorts between the traces.

Grey

S8code3

Lots of hits on "search this forum" and YouTube:

https://www.audiworld.com/forums/q7-...2850950/page2/


Good luck - let us know what you ended up doing.

Jayhawk94

The seller of mine neglected to mention that he'd spilled a sugary beverage (pop or latte?) on the MMI. It was completely clean to visual inspection however I discovered on the drive home that about two of the buttons were nearly nonfunctional and a couple more were dodgy. When I had some stereo work done I asked that they disassemble and clean the MMI. Came out perfectly and was completely worthwhile to me to pay an audio installer shop who also details to do it as I would've certainly broken or lost something in the process.

D3Audi

Thanks for all of the answers guys. Replacing the board seems pretty easy after watching the video. Hmmmm. That's what I'm thinking I should do. The MMI is functioning normally again, but who knows when it will act up again. Is buying a board from china a smart idea? I'm afraid of causing more damage than there already is.

And Jayhawk94, there aren't any audio/stereo specialists who I would trust where I live or within a 2 hour drive, unfortunately.

raj99

I'd remove the mmi, as per the video, open it up and then liberally use electric cleaner on the board and let it dry thoroughly...then put it back together and you should be good to go.

No point buying from china...just get a used model from ebay, imho.