Mercedes Benz

2010 BMW 335Cic Convertible (E93) L6-3.0L Turbo (N54) Technical Service Bulletin # 611502 Date: 111101 Audio System/Instruments - Various System Complaints SI B61 15 02 General Electrical Systems November 2011 Technical Service This Service Information bulletin supersedes SI B61 15 02 dated February 2006. [NEW] designates changes to this revision SUBJECT MOST Bus Diagnosis MODEL All models equipped with a MOST Bus SITUATION The customer may complain of one or more of the following: 2010 BMW 335Cic Convertible (E93) L6-3.0L Turbo (N54) 95 ^ Crackling or popping sounds from all speakers ^ Loss of audio ^ The control display is constantly displaying the "BMW" banner ^ The iDrive controller is not responsive ^ The control display is blank, white or frozen on the current menu screen. CAUSE Possible causes include: ^ Control module power or ground failure ^ Fiber optic cable connection fault or improper radius ^ Faulty control module ^ Dirty, scratched or defective navigation ma...