Mercedes Benz

2010 BMW 335Cic Convertible (E93) L6-3.0L Turbo (N54) Technical Service Bulletin # 210110 Date: 101101 M/T - Dual Mass Flywheel Diagnostic Criteria SI B21 01 10 Clutch November 2010 Technical Service SUBJECT Dual Mass Flywheel - Diagnosis and Inspection MODEL All models equipped with dual-mass flywheel, except Motorsport vehicles INFORMATION 2010 BMW 335Cic Convertible (E93) L6-3.0L Turbo (N54) 438 Prior to condemning the dual-mass flywheel as defective, the following three criteria have to be checked and evaluated: 1. Total rotational angle at no load condition (with applied torque less then 20 Nm) 2. Secondary plate longitudal axial play 3. Friction surface appearance changes due to thermal overload. PROCEDURE Refer to the attached "Dual-mass Flywheel Inspection" document for the complete inspection procedure. The dual-mass flywheel replacement is justified only if one or more of the following criteria are met: 1. The total rotational free-play, measured at the flywheel ...