2011 Mercedes SL-Class Owner's Manual - Page 157

Retractable hardtop The residual heat is deactivated automatically: Rwhen Rafter Rif 155 Retractable hardtop Safety notes For safety reasons, the retractable hardtop can only be opened and closed when the vehicle is standing still. the ignition is switched on approximately 30 minutes the battery voltage drops Rear window defroster G Warning! G Warning! Any accumulation of snow and ice should be removed from the rear window before driving. Visibility could otherwise be impaired, endangering you and others. The rear window defroster uses a large amount of power. To keep the battery drain to a minimum, switch off the defroster as soon as the rear window is clear. The defroster is switched off automatically after some time of operation depending on the outside temperature. X Switch on the ignition. X Switching on: Press button ¤. The indicator lamp in the button comes on. To prevent possible accidents, only drive the vehicle with the retractable hardtop either completely closed and locked, or fully lowered into its storage compartment. If the retractable hardtop does not completely open or close, the roof hydraulics will lose pressure and the retractable hardtop is lowered Rafter Rafter approximately 7 minutes when the ignition is switched on approximately 15 seconds when the ignition is switched off ! The rear window defroster cannot be switched on when the retractable hardtop is open. The indicator lamp will start flashing if the hardtop is open. RClose the retractable hardtop. The rear window defroster can then be switched on. X Shortly before the retractable hardtop is lowered, a warning will sound. In the multifunction display you will see K and the message Retractable Roof Lowering. Properly lock the retractable hardtop before continuing to drive. Otherwise, the unlocked hardtop could open while the vehicle is in motion and cause you to lose control of the vehicle. You or others could be injured as a result. G Warning! Switching off: Press button ¤ again. The rear window defroster switches off when the battery voltage is too low. The indicator lamp in button ¤ flashes. Too many electrical consumers may be operating simultaneously. X Switch off consumers that are currently not needed if required. Before operating the retractable hardtop, make sure there is no danger of anyone being injured by the moving parts (retractable hardtop, roof frame, and trunk lid). Hands must never be placed near the roof frame, upper windshield area, hardtop, shelf behind roll bars, or trunk lid while the retractable hardtop is being raised or lowered. Serious personal injury may occur. If potential danger exists, release the retractable hardtop switch or button % or Z Controls in detail G Observe Safety notes, see page 51.