See also:

Important safety notes
WARNING Do not turn off the engine before the vehicle has come to a complete stop. With the engine not running, there is no power assistance for the brake and steering systems. In this case, ...

Opening
- Switch off the engine. - Remove the SmartKey from the ignition lock. KEYLESS-GO: open the driver’s door. This switches the ignition to position 0, which corresponds to having removed the S ...

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 ...