See also:

Reception and transmission volume
Once the mobile phone has been authorized, you can optimize the transmission and reception volume settings. Find information on the optimal setting for your mobile phone on the Internet at ...

Switching the ECO function on/off
The ECO start/stop function switches the engine off automatically if the vehicle is stopped under certain conditions. When pulling away again, the engine starts automatically. You can switch ...

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 ...