MMI black screen problem?
My 2014 SQ5 MMI seems to have died. Not sure what the problem is at this point, but I see other threads that report the same situation (black screen, no power to any of the lights or responses from any key being pressed. No results with the 'three finger' reset buttons), though they seem to be older.
I have the invisihitch installed, and the dealer technician is currently removing it to continue debugging the problem. The invisihitch folks say the only thing they do is monitor for power on the brake light leads, so there should be no way it causes any complications with the MMI, and I believe that, though there is always the possibility that there was some issue in the installation (does by the invisihitch folks in Atlanta). Anyone else have experience with something like trailer hitch install affecting the MMI? Or other experiences with MMI failures? Thanks in advance. |
First thing I would do is check the VCDS codes.
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Originally Posted by the_duke
(Post 24862924)
First thing I would do is check the VCDS codes.
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Hitch wiring should have no effect on the MMI whatsoever.
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Talk about strange timing- Mine just started having this issue, which prompted me to come search on here.
I have a '14 TDI, a little under 65000 miles, and for the past two days the screen would be black for a few seconds after I started it, but holding the "mute" button for the radio would reset it and turn it back on. This morning, though, it was black and didn't respond to anything. After about 5 minutes of driving it booted up, but I'm not looking forward to the next few days. My initial thought was that since it's a hard-drive based Nav system, that maybe the drive has worn out? The first few times I tried booting it up, I could hear a few quiet clicks/whirrs, kind of the same sounds the old iPods would make as soon as they were about to kick the bucket. Keep us posted! |
Originally Posted by the_duke
(Post 24863036)
Hitch wiring should have no effect on the MMI whatsoever.
So, now I wonder what software/maps will be in the 'new' unit, which I think contains my navigation hard drive... Perhaps there is a silver lining in this cloud and I'll get updated maps? (he says hopefully) |
Depends on what vehicle they pulled it out of.
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A weak or undercharged battery will do this....
The first thing that the Q5 Power Management system shuts down when a low battery is detected is the Infotainment system (Display).
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That will show in a VCDS scan. I would hope the dealership scanned the OP's vehicle before throwing parts at it. Also it wouldn't shut off the MMI if the vehicle was running unless the alternator where bad and that would cause a lot more problems.
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Originally Posted by the_duke
(Post 24863124)
That will show in a VCDS scan. I would hope the dealership scanned the OP's vehicle before throwing parts at it. Also it wouldn't shut off the MMI if the vehicle was running unless the alternator where bad and that would cause a lot more problems.
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