Mercedes Benz

Not applicable 2010 BMW 335Cic Convertible (E93) L6-3.0L Turbo (N54) Technical Service Bulletin # 610800 Date: 120501 Electrical System - Parasitic Draw Measurement SI B61 08 00 General Electrical Systems May 2012 Technical Service This Service Information bulletin supersedes SI B61 08 00 dated December 2010. [NEW] designates changes to this revision SUBJECT Closed-circuit Current Measurement MODEL All SITUATION Increased closed-circuit currents may occur permanently or intermittently and cause the battery to discharge prematurely. The increase in closed-circuit current may be caused by a faulty control unit, or by the installation of a non-approved accessory. In a situation where a vehicle has broken down due to a discharged battery, for diagnostic purposes it is important not to disconnect the battery. This is because a control unit will be reset if the battery is disconnected. Following a reset, the faulty control unit may start functioning correctly again, making accurate diagnosi...