Active seat
Active adjustment of the seat cushion's contours reduces muscular tension and fatigue to help prevent lower back pain.

Press the button. The LED
lights up.
See also:
Pedestrian detection
The pedestrian detection and warning system
only operates in darkness and only when a heat
image is displayed.
Warm objects that are similar in shape to human
beings are detected by the syste ...
Sound output
Switching on/off
When the ignition is switched off: press ON/OFF
button on the radio.
Muting
When the ignition is switched on or the engine
is running: press the ON/OFF button on the
radio. ...
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 ...
