2004 Mercedes SL-Class Owner's Manual - Page 104

Controls in detail Locking and unlocking Illumination of the emergency release button: The button will flash for 30 minutes after opening the trunk. The button will flash for 60 minutes after closing the trunk. i If the emergency release button is pressed and the vehicle was centrally locked, the exterior lamps will flash and the alarm will sound as the trunk lid opens. To cancel the alarm, do one of the following: With the SmartKey Insert the SmartKey in the starter switch. Press button Œ or ‹ on the SmartKey. With KEYLESS-GO* Grasp the outside door handle. Press the KEYLESS-GO* start/stop button. Separately locking the trunk i Your vehicle may be equipped with a function permitting the separate locking and unlocking of the trunk using the mechanical key. If present, this feature can permit you to deny any unauthorized person access to the trunk by locking the trunk separately and leaving the SmartKey less the mechanical key with the vehicle. To verify the presence of this feature, use the mechanical key to lock the trunk an then attempt to open the trunk by pulling on the trunk lid handle after the vehicle has been centrally unlocked with the SmartKey. i The emergency release button does not open the trunk lid if the vehicle battery is discharged or disconnected. 103