Mercedes Benz

2010 BMW 335Cic Convertible (E93) L6-3.0L Turbo (N54) Technical Service Bulletin # 515610 Date: 101201 Body - Central Power Window Switch Operation 2010 BMW 335Cic Convertible (E93) L6-3.0L Turbo (N54) 246 SI B51 56 10 Body Equipment December 2010 Technical Service SUBJECT Central Power Window Switch Operation MODEL E93 SITUATION When pressing the central power window switch, not all windows will respond. This can occur if the window switch is pressed again shortly after the window has reached its stop. A typical situation would be if the operator opens and closes the window quickly to clear the window of fog, dew, rain or frost. This usually affects one of the rear windows. CAUSE A short time delay (2-4 seconds) is built in to protect certain window components. This is inherent in the design, and therefore no repairs or parts are required. CORRECTION Explain the benefits of this function, and then advise the customer of the delay needed between window operations.