See also:

Important safety notes
In order for the battery to achieve the maximum possible service life, it must always be sufficiently charged. Have the battery checked regularly at a qualified specialist workshop, such as ...

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 ...

PSI (pounds per square inch)
A standard unit of measure for tire pressure. ...