Status display
The current status of the Tire Pressure Monitor TPM can be displayed on the Control Display, e.g., whether or not the TPM is active.
1. "Vehicle Info"
2. "Vehicle status"
3. 
"Tire Pressure Monitor -
TPM"
The status is displayed.
See also:
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 ...
Automatic update
About twice a year, Sirius performs an update of
the channel names and positions. The update
takes place automatically and may take several
minutes. ...
Special windshield
The windshield is part of the system.
The shape of the windshield makes it possible
to display a precise image.
A film in the windshield prevents double images
from being displayed.
Therefore, ...