Mercedes Benz

2010 BMW 335Cic Convertible (E93) L6-3.0L Turbo (N54) Technical Service Bulletin # 120610 Date: 100701 Engine Controls - MIL ON, Various Misfire DTC's SI B 12 06 10 Engine Electrical Systems July 2010 Technical Service This Service Information bulletin supersedes SI B12 06 10 dated April 2010. [NEW] designates changes to this revision 2010 BMW 335Cic Convertible (E93) L6-3.0L Turbo (N54) 332 SUBJECT N54 - Misfire Faults, Diagnosis with ISTA D MODEL All with N54 engine SITUATION I The Service Engine Soon lamp is illuminated with various misfire fault codes (e.g., 29CC, 29D2, 29D1, 29D0, 29C0, 29CF) stored in the DME control module. When executing the misfire test plan B1214_DI6MISFIRE2 (using ISTA D 2.19 or 2.20), the procedure instructs the technician to replace the complete set of piezo injectors, even in situations when only the single misfire fault is stored in the individual cylinder, and the vehicle is already equipped with the latest improved version of the injectors (P/N ...