Before you start commenting that the video sucks, this is here so I can show the members of mbworld the car lock/unlock beep. To get this on your MB, go to the dealer and have them set your car to USA with buzzer. This option should be under the Rear SAM menu I think. Also this is the beep set at 100% volume, it can be adjusted in 10% increments. Note this is different than the Netherlands setting under the Rear SAM menu.
beep, lock, unlock