Porsche Panamera 2018, Руководство пользователя

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W Whheeeellss aanndd TTiirreess
283
graded 150 would wear one and a half (1-1/2)
times as well on the government course as a
tire graded 100. The relative performance of
tires depends upon the actual conditions of
their use, however, and may depart signifi-
cantly from the norm due to variations in driving
habits, service practices and differences in
road characteristics and climate.
e
Check tire tread regularly, particularly before
and after long journeys.
e
The original equipment tires on your Porsche
have built-in tire wear indicators. They are
molded into the bottom of the tread grooves
and will appear as approximately 1/2 in. (12
mm) bands when the tire tread depth is down to
1/16 of an inch (1.6 mm).
e
When the indicators appear in two or more ad-
jacent grooves, it is time to replace the tires.
We recommend, however, that you do not let
the tires wear down to this extent.
e
Worn tires cannot grip the road surface prop-
erly and are even less effective on wet roads.
e
For safety reasons, replace the tires before the
wear indicators appear. Snow tires are no lon-
ger suitable when their tread depth falls below
5/32 in. (4 mm).
e
In the United States, state laws may govern the
minimum tread depth permissible. Follow all
such laws.
Measuring tire tread depth
e
Insert a commercially available tread depth
gauge or caliper in the tire tread and measure
the tire tread depth.
Storing wheels
e
Always store wheels in a cool, dry and dark
place. Store tires without rims vertically.
e
Do not store summer tires or park vehicles with
summer tires mounted at ambient tempera-
tures under 5 °F (-15 °C).
e
Avoid contact with gas, oil or grease.
e
Tires must not be more than 6 years old.
Chemical additives, which make the tire rubber
elastic, lose their effectiveness over the course
of time and the rubber becomes brittle. The
age of the tire can be seen from the "DOT" code
number shown on the tire sidewall. If, for ex-
ample, the last four digits read 3016, then the
tire was produced in the 30th week of 2016.
Balancing wheels
As a precaution, have wheels balanced in spring
(summer tires) and before winter (M+S tires) by an
authorized Porsche dealer.
e
Visit an authorized Porsche dealer. Porsche
recommends an authorized Porsche dealer, as
they have trained technicians and the neces-
sary parts and tools.
Changing a wheel
WARNING
Working under the
vehicle
The vehicle can slip off the jack.
e
Make sure that there is no one inside the ve-
hicle when jacking it up and changing the
wheel.
e
Raise the vehicle only at the prescribed jacking
points on the vehicle underbody.
e
Never jack up the vehicle on a surface that
slopes up, down or to the side.
e
Only use the jack to raise the vehicle for
changing tires.
e
Always place the vehicle on solid supports
when working under the vehicle.
Information
The tools needed for changing wheels (jack, wheel
bolt wrench, mounting aids, etc.) are not included
in the standard scope of supply for the vehicle.
e
For information on the tool required: Contact an
authorized Porsche dealer.
Information
The tire and wheel sizes on both axles are differ-
ent. When removing the wheels, mark the direction
of rotation and position on each wheel and carry
out the installation according to these markings.
e
Only use wheels/tires with approved dimen-
sions for the relevant axle.