See also:

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

Roadside Assistance button
  Press and hold Roadside Assistance button 1 for more than two seconds. This initiates a call to the Mercedes-Benz Customer Assistance Center. The indicator lamp in Roadside Assistance but ...

Important safety notes
The fuses in your vehicle serve to close down faulty circuits. If a fuse blows, all the components on the circuit and their functions stop operating. WARNING Only use fuses approved by Merce ...