Porsche Boxster 2006, Owner'S Manual

Page: 104 / 296

104
Controls, Instruments
Tire pressure function of the on-board
computer
The tire pressure function of the on-board
computer displays the tire pressures (actual
pressure) dependent on temperature in the four
wheels.
You can watch the tire pressure rise as the
temperature increases while driving.
This display is only for information.
f
Under no circumstances should the tire
pressures be changed based on this display.
Calling the tire pressure function of the on-
board computer
f Push operating lever up or down until the tire
pressure function of the on-board computer
appears.
(The selection field must be switched off .)
Pressure info in Tire pressure menu
In accordance with physical principles, the air
pressure changes as the temperature changes.
The tire pressure increases or decreases by
around 1.5 psi (0.1 bar) for every 50°F (10°C)
change in temperature.
The tire pressure monitoring takes this relation-
ship between tire pressure and temperature into
account.
You can read the tire pressures to be
corrected in this display.
The tire pressure to be corrected (refill pressure)
is indicated on the displayed wheel.
Example: If “ –1.5 psi (–0.1 bar)” is displayed,
1.5 psi (0.1 bar) must be added to this tire.
Note
The Tire pressure menu can only be called up
when the vehicle is stationary.
Calling up the “Info pressure” display
f
Push operating lever forward in order to switch
on the selection field.
f Select “TPC” with the operating lever.
f
Push operating lever forward.
The display changes to the Tire pressure
menu.
f Select “Info pressure” with the operating lever.
f Push operating lever forward.
Note
After the ignition is switched on, it can take up to
approx. 1 minute before all tire pressures are
displayed. Dashes (“-.-”) appear instead of the tire
pressures.