PSI (pounds per square inch)

A standard unit of measure for tire pressure.

    See also:

    Massage function (PULSE)
    The massage function helps you to prevent muscle tension on long journeys. You can choose between two levels. •► To switch on: press button 4 once or twice until the desired level is set. ...

    "Minispare" emergency spare wheel
    The specified tire pressure is printed in yellow on the emergency spare wheel. ...

    Service for recovering a stolen vehicle
    If your vehicle has been stolen: Notify the police. The police will issue a numbered incident report. This number will be forwarded to the Mercedes-Benz Customer Assistance Center togethe ...