1] The fuses inside should be checked with a multimeter. If any of these fuses are burned out you should replace them and then see if Audi MMI works. If this
Ihad the battery replaced, thankfully under interstate warranty, and the MMI still does not come on. NO lights, No flicker, no nothing. The odd thing though, is the
Ihave the same problem on A4 B8 2009 MMI 3G Basic. Yes, I figured it out, you need a language cd to load the speech to mmi. If you don’t want to spend money on
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audi a4 b8 mmi not working