See also:

Roadside Assistance button
Open the stowage compartment under the armrest. Press and hold Roadside Assistance button 1 for more than two seconds. This initiates a call to the Mercedes-Benz Customer Assistance Center ...

Automatic engine switch-off
The ECO start/stop function switches the engine off automatically if the vehicle is braked to a standstill and the brake remains depressed with the transmission in position D or N. You can st ...

Engine emergency off
If the engine cannot be switched off as described, observe the following procedure: Take the fuse allocation chart out of the vehicle document wallet. Search for “Emergency engine shutdown” ...