Porsche 911 TURBO - 1975 WORSHOP, Manual

Page: 97 / 252

Controls, Safety, Instruments
97
Setting of the tyre characteristics has only been
successfully completed when the message
“Process complete” is displayed by the on-board
computer.
f
Select arrow (Back) and push the operating
lever forward. The display returns to the Tyre
pressure menu.
The on-board computer additionally displays
the message “System learning”.
Notes
The message “Process cancelled” appears if the
setting process is interrupted. All entries made up
to this point are lost, and the original settings
remain in effect.
Tyre Pressure Monitoring will re-learn the wheels
only if the message “Process complete” appears
after the settings have been made.
f Please observe the chapter “SYSTEM
LEARNING” on page 99.
Before fitting tyres with sizes which are not stored
in the on-board computer, the missing information
should be supplemented in the on-board
computer.
f Consult a qualified specialist workshop. We
recommend a Porsche partner for this work as
they have trained workshop personnel and the
necessary parts and tools.
f Use only tyres approved by Porsche.
The available items in the Tyre pressure menu
depend on the equipment of your vehicle. For this
reason it is possible that some of the items shown
here are not available on your on-board
computer’s display.
f
Make sure that the tyre pressures correspond
to the on-board computer settings. Correct the
tyre pressures if necessary.
f Please observe the chapter “TYRE
PRESSURES FOR COLD TYRES” on page 240.
Load
(depending on equipment level)
f
Push operating lever forward in order to switch
on the selection field.
f
Select “TPM” with the operating lever.
f
Push operating lever forward.
The display changes to the Tyre pressure
menu.
f
Select “Load” with the operating lever.