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!