Important safety notes

Service products include the following:

fuels (e.g. gasoline, diesel)
additives for exhaust gas aftertreatment (DEF)
lubricants (e.g. engine oil, transmission oil)
coolant
brake fluid
windshield washer fluid

Vehicle components and their respective lubricants must match. You should therefore only use products that have been tested and approved by Mercedes-Benz.

Information on tested and approved products can be obtained at a Mercedes-Benz Center or on the Internet at http://www.mbusa.com (USA only).

WARNING Comply with all valid regulations with respect 
Comply with all valid regulations with respect to handling, storing and disposing of service fluids. Otherwise, you could endanger persons or the environment.
Keep service fluids out of the reach of children.
For health reasons, you should prevent service fluids from coming into direct contact with your skin or clothing.
If a service fluid is swallowed, contact a physician immediately.

    See also:

    Displaying service messages
    Switch on the ignition. Press or on the steering wheel to select the Serv. menu. Press or to select the ASSYST PLUS submenu and press to confirm. The service due date appears ...

    Setting a speed
    WARNING   Keep in mind that it may take a brief moment until the vehicle has made the necessary adjustments. Increase or decrease the set vehicle speed to a value that the prevailing ro ...

    SmartKey
    0 To remove the SmartKey 1 Power supply for some consumers, such as the windshield wipers 2 Ignition (power supply for all consumers) and drive position 3 To start the engine The SmartKey can ...