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Setting the tire type and tire size
Information
The options available depend on the model and tire
type. It is therefore possible that not all the options
shown here are available.
e Before fitting tires and wheels with dimensions
that are not available for selection in the Tire
Pressure Monitoring System menu, the missing
information should be added. Visit an authorized
Porsche dealer. Porsche recommends an author-
ized Porsche dealer, as they have trained techni-
cians and the necessary parts and tools.
e Only use tires and wheels approved by Porsche.
e CAR
e CONTROL
e Vehicle settings e
Tire pressure monitoring e Tire selection
Selecting full load or partial load
e CAR
e CONTROL
e Vehicle settings e
Tire pressure monitoring e Full load
Full load
Full load is activated.
Full load
Partial load is activated.
e Adjust the tire pressures to the selected load
type.
Information
If the option Full load is not displayed, the specified
tire pressures are valid for all types of vehicle load.
Selecting comfort pressure or standard
pressure
The tire pressures can be reduced to enhance
comfort.
With comfort pressure, the Tire Pressure Monitoring
System automatically uses lower required pressures
for tire pressure monitoring.
e CAR
e CONTROL
e Vehicle settings e
Tire pressure monitoring e Comfort pressure
Comfort pressure
Comfort pressure is activated.
Comfort pressure
Standard pressure is activated.
e Adjust tire pressures to comfort pressure or
standard pressure.
Teaching in the Tire Pressure Monitoring
System
After the tires have been changed, a wheel sensor
has been replaced or the tire settings have been
updated, the process for teaching the tires in the Tire
Pressure Monitoring System begins. The tire pres-
sure control system recognizes the wheels and their
installation position. The position and pressure data
is available as soon as the tire pressure monitoring
system has assigned the recognized wheels to the
correct wheel position.
During this process, the required pressures for cold
tires (68 °F (20 °C)) are displayed in the PCM and a
message appears on the instrument cluster.
The tire pressure warning light
in the instrument
cluster remains lit until all the wheels have been
taught in.
Uniform Tire Quality Grading and
Glossary of Tire Terminology
Fig. 238: Treadwear, Traction and Temperature of the Tire
Quality grades can be found where applicable on the
tire sidewall between tread shoulder and maximum
section width. All passenger vehicle tires must con-
form to Federal Safety Requirements in addition to
these grades. Quality grades can be found where
applicable.
Treadwear
The treadwear grade is a comparative rating based
on the wear rate of the tire when tested under con-
trolled conditions on a specific government test
course. For example, a tire graded 150 would wear
one and a half (1-1/2) times as well on the govern-
ment course as a tire graded 100. The relative per-
formance of tires depends upon the actual
conditions of their use, however, and may depart
significantly from the norm due to variations in
Wheels and Tires
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
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