See also:

Panic alarm
► To activate: press button 1 for at least one second. An alarm sounds and the exterior lighting flashes. ► To deactivate: press button 1 again. or ► Insert the SmartKe ...

Center console, lower section - AMG vehicles
  ...

Starting procedure with the SmartKey
- To start a gasoline engine: turn the SmartKey to position 3 in the ignition lock and release it as soon as the engine is running. - To start a diesel engine: turn the SmartKey to position 2 ...