MMI black screen problem? - AudiWorld Forums

Notices
Q5/SQ5 MKI (8R) Discussion Discussion forum for the First Generation Audi Q5 SUV produced from 2008 to 2017

MMI black screen problem?

Reply

 
 
Old 09-28-2016, 08:18 AM
  #1
AudiWorld Member
Thread Starter
 
Join Date: Jul 2011
Posts: 152
Default 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.
Tomb01 is offline  
Reply With Quote
Old 09-28-2016, 08:23 AM
  #2
AudiWorld Super User
 
the_duke's Avatar
 
Join Date: Aug 2014
Location: Montana
Posts: 2,138
Default

First thing I would do is check the VCDS codes.
the_duke is offline  
Reply With Quote
Old 09-28-2016, 08:31 AM
  #3
AudiWorld Member
Thread Starter
 
Join Date: Jul 2011
Posts: 152
Default

Originally Posted by the_duke View Post
First thing I would do is check the VCDS codes.
Not sure I have the ability to see the VCDS codes. The dealership is removing the hitch wiring, after which they will continue with the evaluation to determine what the problem is. I "anticipate" that they will find something wrong with the MMI (the tech said possible fried cpu?) and then blame the hitch wiring, but ya never know.
Tomb01 is offline  
Reply With Quote
Old 09-28-2016, 12:40 PM
  #4
AudiWorld Super User
 
the_duke's Avatar
 
Join Date: Aug 2014
Location: Montana
Posts: 2,138
Default

Hitch wiring should have no effect on the MMI whatsoever.
the_duke is offline  
Reply With Quote
Old 09-28-2016, 01:51 PM
  #5
AudiWorld Member
 
Join Date: Aug 2014
Location: Concord, NH
Posts: 126
Default

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!
jhumph88 is offline  
Reply With Quote
Old 09-28-2016, 01:52 PM
  #6
AudiWorld Member
Thread Starter
 
Join Date: Jul 2011
Posts: 152
Default

Originally Posted by the_duke View Post
Hitch wiring should have no effect on the MMI whatsoever.
Thanks, you are correct. The tech talked it over with Audi support, and they suggested he try a 5F from another vehicle, and all came to life. So, they are ordering a new 5F unit, which will be here Friday. Sadly, they had already disconnected quite a bit of my power harness for the hitch. Rather than have them try to 'figure it out', I'll just take it in to someone that does those and pay them to put it back together. Famous last words it won't be too much in the way of labor, just reconnecting the wires...

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)
Tomb01 is offline  
Reply With Quote
Old 09-28-2016, 02:11 PM
  #7
AudiWorld Super User
 
the_duke's Avatar
 
Join Date: Aug 2014
Location: Montana
Posts: 2,138
Default

Depends on what vehicle they pulled it out of.
the_duke is offline  
Reply With Quote
Old 09-28-2016, 04:16 PM
  #8
AudiWorld Super User
 
Join Date: Mar 2000
Location: US PA
Posts: 4,873
Default 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).
Bob Petruska is offline  
Reply With Quote
Old 09-28-2016, 04:21 PM
  #9
AudiWorld Super User
 
the_duke's Avatar
 
Join Date: Aug 2014
Location: Montana
Posts: 2,138
Default

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.
the_duke is offline  
Reply With Quote
Old 09-28-2016, 05:43 PM
  #10
AudiWorld Super User
 
Join Date: Mar 2000
Location: US PA
Posts: 4,873
Default

Originally Posted by the_duke View Post
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.
Agree the dealer should be smart enough to do that!!! They are removing his hitch so they are questioning it. The Power Management stored history data may have pointed to this. He could be consuming more than the acceptable 50mA at shutdown, and maybe it is a bad charging system. The owner should also try his sunroof as that is part of the same group that is first shutdown due to low battery/poor charging conditions.
Bob Petruska is offline  
Reply With Quote
 
 
 

Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
DreewMcK
A6 / S6 (C6 Platform) Discussion
1
08-22-2016 05:50 PM
Blech
Q5/SQ5 MKI (8R) Discussion
6
08-22-2016 07:49 AM
Audi A5 / S5 / RS5 Coupe & Cabrio (B8)
0
08-19-2016 12:42 AM
IknowHuhA6
A6 (C7 Platform) Discussion
0
08-13-2016 10:16 PM

Thread Tools
Search this Thread
Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -8. The time now is 07:15 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: