Close the windows and glass sunroof

Driving with the glass sunroof and windows open results in increased air resistance and raises fuel consumption.

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    The concept
    The system does not measure the actual inflation pressure in the tires. It detects a pressure loss in a tire by comparing the rotational speeds of the individual wheels while moving. In the ev ...

    Configuring the prewarning
    After the warning function is switched on, the following can be set via the iDrive: ▷ The prewarning can be switched on/off. ▷ The time of the prewarning can be set. These settings ha ...

    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 ...