2003 Mercedes SL-Class Owner's Manual - Page 75

Safety and Security Anti-theft systems Anti-theft systems Immobilizer The immobilizer prevents unauthorized persons from starting your vehicle. Activating With the key: Removing the key from the starter switch activates the immobilizer. With KEYLESS-GO*: Turning off the engine by means of the start/stop button on the gear selector lever activates the immobilizer. Deactivating With the key: Inserting the key in the starter switch deactivates the immobilizer. With KEYLESS-GO*: Starting the engine by means of the start/stop button on the gear selector lever deactivates the immobilizer. Anti-theft alarm system Once the alarm system has been armed, a visual and audible alarm is triggered when someone opens a door the trunk lid the hood a storage compartment in the rear the glove box the storage space under the armrest The alarm system will also be triggered when someone attempts to raise the vehicle unlocking and opening the driver's door with the mechanical key i If the alarm stays on for more than 20 seconds, an emergency call is initiated automatically by the Tele Aid system ( page 202) provided Tele Aid service was subscribed to and properly activated. 75