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Thread: MMI screen fault

  1. #1

    Default MMI screen fault

    My nephew changed his MMI screen because of a crack, don't ask, and the new 2nd hand screen does not light up. When turned on it comes up with AUDI MMI screen then says, 'please wait' and then goes blank. Does the screen need to be coded to this vehicle, if so how, or could it be a bad connection or just another faulty screen? Any help/advice would be appreciated.
    Last edited by 94873; May 24th, 2021 at 05:21 PM.

  2. #2

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    Quote Originally Posted by 94873 View Post
    My nephew changed his MMI screen because of a crack, don't ask, and the new 2nd hand screen does not light up. When turned on it comes up with AUDI MMI screen then says, 'please wait' and then goes blank. Does the screen need to be coded to this vehicle, if so how, or could it be a bad connection or just another faulty screen? Any help/advice would be appreciated.
    Sounds like the screen is fine when you turn it on.
    Is the second hand screen exactly the same model as the old one?

  3. #3
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    My understanding is that the screen is not component protected.

    Do you have access to vcds/vagcom? This might help clear any errors.. It really should just be a plug-n-play option however.

    What about doing a reboot of the MMI? Do a search on 'mmi green menu'..

  4. #4

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    I believe it is. It does light up momentarily but then goes off. Thanks for reply.

  5. #5

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    Thank you for reply. I'll check it out. AUDI Central Coast want $231 to plug in a scanner. Might have to go that way if all else fails. Thanks again.

  6. #6

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    Hi,
    Apparently it is the CD changer. Is it possible to loop around the CD changer? When they did the loop check the screen lit up as normal. Or is it possible to recode a 2nd hand complete MMI from another Q5?
    Regards
    Last edited by 94873; June 4th, 2021 at 04:08 PM.

  7. #7
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    It looks like it might have component protection on some of the main parts (not the screen).

    Audi Component Protection, MMI replacement. attempted recoding failed. - YouTube

    where abouts are you located? I know that AutoFidelity would definitely be able to help you out..

  8. The Following User Says Thank You to jnrdavo For This Useful Post:

    94873 (June 7th, 2021)

  9. #8
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    Quote Originally Posted by 94873 View Post
    Hi,
    Apparently it is the CD changer. Is it possible to loop around the CD changer? When they did the loop check the screen lit up as normal. Or is it possible to recode a 2nd hand complete MMI from another Q5?
    If you have a faulty component (such as a CD changer) that you are content to 'drop out' of the system, you can buy a fibre optic loop such as the below.



    Just remove the CD changer, disconnect the optical connector and plug it into this loop adaptor.

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    94873 (June 7th, 2021)

  11. #9

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    I like it! Where would I find this connector? AUDI wanted nothing to do with bypassing the CD changer.

  12. #10

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    Central Coast, NSW

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