The concept

The Auto Start/Stop function helps save fuel.

The system switches off the engine during a stop, e.g., in a traffic congestion or at traffic lights. The ignition remains switched on. The engine starts again automatically for driving off.

Certain vehicle components may experience additional wear as a result of this system.

    See also:

    Contacts
    Note If equipped with full mobile phone preparation package. At a glance Contacts can be created and edited. The contacts from the mobile phone are displayed as well if this function is suppo ...

    Using this Owner's Manual
    The fastest way to find information on a particular topic is by using the index. An initial overview of the vehicle is provided in the first chapter. Additional sources of information Should yo ...

    Exterior
    The exterior remains the same for 2009, and the X3 retains its awkward angles, disjointed taillights and odd lower bodywork. It's not unattractive, but it sure isn't as stylish as Mercedes' new GL ...