My 2007 335i Dashboard Warning Lights Going Crazy, Please Note On The Picture. And The Video That I Have But Was Not Able To Upload Here Because Of Its Size, The Video I Have Shows While Driving The Warning Light Come On And The Speedometer And Rpm Drop To Zero. The Dealers After 5 Atemps And Changing Several Parts Have Not Been Able To Find The Problem. Any Idea Please
5 dealer attempts sounds frustrating. Have they been in touch with BMW NA? Try another dealer? Have you added any non-BMW electronics to the vehicle?