2006 Mercedes SL-Class Owner's Manual - Page 194

Controls in detail Power windows Opening the door windows Press switch 1 or 2 to the resistance point. The corresponding door window will move downwards until you release the switch. Closing the door windows Pull switch 1 or 2 to the resistance point. The corresponding door window will move upwards until you release the switch. Warning! Fully opening the door windows (Express-open) Press switch 1 or 2 past the resistance point and release. The corresponding door window opens completely. i If the hardtop is open, the respective rear side window will open automatically as soon as the door window is completely open. Opening the rear side windows if the hardtop is closed: Open the door window. Press switch 1 or 2 to the resistance point again. The corresponding rear side window will open completely. G i If the hardtop is open, the respective rear side window will open automatically as soon as the door window is completely open. If you pull and hold the switch up when closing the door window, and upward movement of the door window is blocked by some obstruction including but not limited to arms, hands, fingers, etc., the automatic reversal will not operate. Closing the rear side windows if the hardtop is closed: Close the door window. Pull and hold switch 1 or 2. The corresponding rear side window will move upwards until you release the switch. 193