Washer pipes have been replaced, and will take weeks to all dry out completely. Problem I still have is that the MMI 2 G is still not working. I have the Bose option, DVD Nav, BT phone module. Initially completely dead, but now the Audi MMI system screen comes up for a few seconds and then goes black again. All Audi A6 Models around the year 2006. MMI boots and then shuts off. Monitor goes on and then black. None of the MMI control works. Failed component in Audi MMI Not working. As useful as Audi MMI can be, it is not faultless. At times, Audi MMI can malfunction and stop working. The causes of MMI breaking down are varied and include amplifier, modules, or fuses malfunctioning. Knowing how to properly check on them as well as proper replacement is key to keeping our Audi MMI safe from serious I'm havering trouble with my 06 a6 MMI it shuts off when the radio is on and loud an when I'm driving makes a clicking noise in the under the dashboard Support. Help plz, just bought an 06 plate a6, 2.7tdi quatro, the guy I bought it from said he renewed the battery but did not code it in with a diag machine, the mmi now doesn't work if u switch it on it comes up with the audi logo for about 30 secs then flashes a message about a component not being supp 1 First Name: Farzad Location: Portsmouth Audi Model:: A6 3.0 DTI Audi Year: 2011 Posted February 23 I have A6 3.0 DTI Avante 2011. Last week I noticed for first time a message on my dash board.."Key weak battery". After that the MMI displayed started having mind of its own, coming on and off when it wanted. Two simple things to check depending on how long you've owned it, try holding down the power/volume **** a little longer and second the button over the glove compartment release turns off the display, it may have gotten pressed by accident. Unfortunately my mmi in my 2010 A6 Avant has stopped working properly. Its the basic with dvd nav and Bluetooth. When I put the key in the ignition the mmi screen doesn't come on at all. I start the car and still nothing. The controls/buttons are not illuminated either and unresponsive. 133K views 3 years ago. This is a quick video how to diagnose the MMI malfunction. These are the few steps to follow to see what the problem might be before going to the dealership and spending A6 C6 3.0 Quattro le mans , was wondering any help my MMI stopped working 2 days after buying car screen lights up for about 40secs then turns of I have no fiber optic light going to nothing at the back of car and there dosnt seem to be any power at the control unit at the gear stick any help would be great. jd65.