MMi Problems, what can be wrong?

Discussion in 'MMI' started by CoolGate, Apr 22, 2014.

  1. CoolGate Member

    I got a Q7 3.0TDi 2011 facelift model
    Maybe u can tell me whats wrong?
    The mmi buttons doesnt glow(the lamp that view wich button is active) and not working. no button works.. even the button to right of the display (that turns off and on the display) doesnt work
    but I can press the MMi reset combo (setup+middle knob+ right corner of the middle knob) that restarts the mmi.. so where can the problem be? in the MMi control buttons or on the headunit or somewhere else? Is there somehow to fix this?

    I have tested with a mmi button controller (4L0919611C) from kufatec but was the same problem.. and seems that I and they dont know if the part they sent was working either. So Iam still in a ???

    Is it this headunit part that is the problem? 4L2035666

    All helps is helpful!
  2. Google

  3. 4F-Devil Member

    I think, you have MMI3GP.
    In this MMI can set the baud rate of the control panel.
    The Q7, it must be set to 9600.
    Reset also works with the wrong baud rate.
  4. CoolGate Member

    Okey could this baud rate just change of itself? How does it explain it worked when it was COLD for some minutes til the car got warm?
    How can i check this baudrate thing and where?
  5. CoolGate Member

    This is the error code I have

    Address 5F: Information Electr. (J794) Labels: 4E0-035-6xx-5F.clb
    Part No SW: 4L0 035 666 B HW: 4L0 035 666 A
    Component: H-BN-EU H49 0107
    Revision: -------- Serial number: 473I20A7535980
    Coding: 010100060004D3FF41000705EF6300030000
    Shop #: WSC 31414 790 00001
    VCID: 2C57E23B4FFEEC7E18B-8079

    Subsystem 1 - Part No: 8R0 060 884 R
    Component: EUR 2010 1107

    Subsystem 2 - Part No SW: 8F0 919 604 HW: 8F0 919 604
    Component: DU7 High H43 0084

    Subsystem 3 - Part No: 8R0 060 961
    Component: CD-Database 1886

    2 Faults Found:
    00658 - Control Head
    004 - No Signal/Communication
    Freeze Frame:
    Fault Status: 01100100
    Fault Priority: 5
    Fault Frequency: 28
    Reset counter: 148
    Mileage: 101752 km
    Time Indication: 0
    Date: 2014.02.26
    Time: 08:42:46

    Freeze Frame:
    Voltage: 14.10 V

    00658 - Control Head
    012 - Electrical Fault in Circuit - Intermittent
    Freeze Frame:
    Fault Status: 00101100
    Fault Priority: 5
    Fault Frequency: 13
    Reset counter: 201
    Mileage: 101752 km
    Time Indication: 0
    Date: 2014.02.26
    Time: 09:13:32

    Freeze Frame:
    Voltage: 12.70 V
    Bin. Bits: 001

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