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 Assi ...

SmartKey
Display messages Possible causes/consequences and Solutions You have put the wrong SmartKey in the ignition lock. – Use the correct SmartKey. The Sma ...

Storing and maintaining the current speed
You can store the current speed if you are driving faster than 20 mph (30 km/h). •► Accelerate the vehicle to the desired speed. •► Briefly press the cruise control lever up 1 or d ...