Mercedes Benz

2010 BMW 335Cic Convertible (E93) L6-3.0L Turbo (N54) Technical Service Bulletin # 540908 Date: 110801 Body - Excess Butyl Sealer on Retractable Hard Top SI B54 09 08 Special Roofs August 2011 Technical Service This Service Information bulletin supersedes SI B54 09 08 dated August 2008. [NEW] designates changes to this revision SUBJECT Cleaning Excess Butyl from RHT Roof Shells MODEL E93 (3 Series Convertible) SITUATION Butyl adhesive is used to secure the seals of the retractable hardtop (RHT) to the steel roof shell panels. Particularly at high ambient temperatures, if excess butyl is present, it may start to seep out from between the seal and the roof shell. This butyl may be black or gray in color. CAUSE Excess butyl applied to the roof shell during assembly CORRECTION Remove the excess butyl by following the procedure outlined below. Failure to follow this procedure could result in a water leak that was not present before. PROCEDURE 2010 BMW 335Cic Convertible (E93) L6-3.0L Turbo...