2006 Mercedes SL-Class Owner's Manual - Page 199

Controls in detail Retractable hardtop Locking the retractable hardtop after raising/lowering Warning! Unlocked status noticed when stopped Switch on the ignition. To lock the hardtop in its fully closed position, press hardtop switch forward. or: To lock the hardtop in its fully opened position, pull up on the hardtop switch. Warning! Unlocked status noticed while driving G G The hardtop is not fully closed and locked or not fully opened and locked if: the indicator lamp in the hardtop switch remains lit the message K in operation appears in the multifunction display and the indicator lamp in the hardtop switch does not go out the indicator lamp in the hardtop switch flashes and a warning sounds for 10 seconds and the message K Lock retractable roof appears in the multifunction display when starting to drive Stop the vehicle in a safe location or as soon as it is safe to do so and lock the hardtop before continuing to drive. You could otherwise endanger yourself and others. Stop the vehicle in a safe location or as soon as it is safe to do so. Leave the ignition switched on. To lock the hardtop in its fully closed position, press hardtop switch forward. or: To lock the hardtop in its fully opened position, pull up on the hardtop switch. If the retractable hardtop is not properly locked, lock it as described below. 198