See also:

Remote vehicle locking
If you forget to lock your vehicle but are no longer in the vicinity of the vehicle, it can be locked for you by the Mercedes-Benz Customer Assistance Center. The vehicle can be locked remotely ...

Please bear the following in mind
At the onset of winter, have your vehicle winterproofed at a qualified specialist workshop, e.g. at an authorized Mercedes- Benz Center. Observe the notes in the "Changing a wheel" ...

ATA (Anti-Theft Alarm system)
A visual and audible alarm is triggered if the alarm system is armed and you open: - a door - the vehicle with the mechanical key - the trunk lid/tailgate - the hood The alarm is not s ...