Points to observe before use

With the exception of the socket in the front center console, all sockets can be used for accessories with a maximum current draw of 240 W (20 A), e.g. lamps or chargers for mobile phones.

The socket in the center console in the front compartment can be used for accessories, e.g lamps or mobile phone chargers with a maximum current draw of 180 W (15 A).

If you use the sockets for long periods when the engine is switched off, the battery may discharge.

– Turn the SmartKey to position 1 in the ignition lock.

An emergency cut-out ensures that the An emergency cut-out ensures that the on-board voltage does not drop too low. If the on-board voltage is too low, the power to the sockets is automatically cut. This ensures that there is sufficient power to start the engine.

    See also:

    Mercedes-Benz M-Class Owners Manual
    ...

    Resetting to factory settings
    For safety reasons, the Daytime Running Lights: function in the Lights submenu is only reset when the vehicle is stationary. – Press the or button on the steering wheel to select the Setting ...

    Important safety notes
    WARNING Never switch off the engine while the vehicle is in motion. There is no brake boost for the service brake if the engine is not running. If the ignition is switched off, there is also ...