
Instrument Panel and Multi-Purpose Display
125
Red warning – Tire pressure!
Red warning – Tire pressure!
At speeds of
less than 100 mph (160 km/h)
:
– The pressure in the tire has dropped by
more
than 7 psi / 0.5 bar / 50 kPa
. This
significant pressure loss is a danger to road
safety.
At speeds of
more than 100 mph (160 km/h)
:
– The pressure in the tire has dropped by
more
than 6 psi / 0.4 bar / 40 kPa
. This
significant pressure loss is a danger to road
safety.
f
When the tire pressure warning appears, stop
immediately at a suitable place. Check the
indicated tire for signs of damage.
If necessary, fill in tire sealant and set the
correct tire pressure.
This tire pressure warning also appears when
driving and can be acknowledged.
The tire pressure warning light on the instrument
panel goes out only when the tire pressure has
been corrected.
For information on tire sealing compound:
f
Please see the chapter “USING TIRE SEALANT”
on page 277.
Changing a wheel and replacing tires
f
New wheels must be fitted with radio
transmitters for Tire Pressure Monitoring.
Before tires are changed, the battery charge
condition of the wheel transmitters should be
checked at an authorized Porsche dealer.
f
Switch off the ignition when changing a wheel.
The tire settings on the multi-purpose display must
be updated after changing a wheel.
If the tire settings are not updated, the message
“Tire change? Update settings!” is displayed on the
multi-purpose display.
f
Update the multi-purpose display settings the
next time the vehicle is stationary.
Pressure increase as the result of
temperature increase
In accordance with physical principles, the tire
pressure changes as the temperature changes.
For every 18 °F (10 °C) change in temperature,
the tire pressure increases or decreases by
around 1.5 psi / 0.1 bar / 10 kPa.
Partial monitoring
Monitoring of the other wheels is continued if there
is a fault in one or two wheel transmitters.
– The tire pressure warning light lights up.
– The message “Restricted monitoring” appears
on the multi-purpose display.
– No tire pressures are displayed on the multi-
purpose display for wheels with faulty wheel
transmitters.
No monitoring
In the event of faults, Tire Pressure Monitoring
cannot monitor the tire pressure.
The warning light on the instrument panel lights up
and a corresponding message appears on the
multi-purpose display.
Monitoring is not active:
– If Tire Pressure Monitoring is faulty.
– If wheel transmitters for Tire Pressure
Monitoring are missing.
– During the learning phase after the tire settings
have been updated.
– After a wheel change without updating the
tire settings.
– If more than four wheel transmitters are
recognized.
– If there is external interference by other
radio sources, e.g. wireless headphones.
– If tire temperatures are too high.
f
Please see the chapter “OVERVIEW OF
WARNING MESSAGES” on page 139.