Hello, I have problem with my MMI system. I found many info about common problems. But no solution for now. My MMI sometimes work very slowly, sometimes sound gone, stuck or reloading. I check all modules for water damage, everything look fine. My navigation unit was draining the battery, so I take it out and make a loop. But I think it's not a problem, becouse it just can't "sleep". Vcds don't show any errors. But main thing I can't make optical bus diagnostic. It's shows all errors (electrical and optical) , even mmi working fine. And I can connect to all modules. Can it be damaged and problem?
Thank and sorry for my English
Thank and sorry for my English