See also:

Total load limit
Rated cargo and luggage load plus 68 kilograms (150 lbs) times the vehicle's designated seating capacity. ...

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 ...

Cleaning the steering wheel and gear or selector lever
  Thoroughly wipe with a damp cloth or use leather care agents that have been recommended and approved by Mercedes- Benz. ...