Activating/deactivating

button. To activate: press the The indicator lamp in the button button.
The indicator lamp in the lights up. button lights up.
button. To switch off: press the The indicator lamp in the button button.
The indicator lamp in the goes out. The cooling with air dehumidification function has a delayed button goes out. The cooling with air dehumidification function has a delayed switch-off feature.

    See also:

    4MATIC (permanent four-wheel drive)
    4MATIC ensures that all four wheels are permanently driven. Together with ESP®, it improves the traction of your vehicle whenever a drive wheel spins due to insufficient grip. WARNING If ...

    The M-Class also protects its occupants after a crash
    As part of the POST-SAFE® functions, the new M-Class can activate a variety of systems which can contribute towards avoiding post-accident risks. After a more serious crash, the hazard warning lig ...

    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 ...