The concept
This system issues a warning at speeds above approx. 40 mph/65 km/h if the vehicle is about to leave the lane on roads with lane markings.
The steering wheel begins vibrating lightly.
The system does not issue a warning if the turn signal is set before leaving the lane.
See also:
Tire Pressure Monitor TPM
The concept
The tire inflation pressure is measured in the
four mounted tires. The system notifies you if there is a significant loss of
pressure in one or
more tires.
Functional requirements
...
End of warning
The warning ends:
Automatically after approx. 3 seconds.
When returning to your own lane.
When braking hard.
When using the turn signal.
...
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 ...