Porsche 718 Spyder, Руководство пользователя

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Tires and Wheels
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Checking tire tread
e
Check the tread regularly, especially before and
after long drives.
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 in. (1.6 mm).
e
When the indicators appear in two or more
adjacent 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 properly
and are even less effective on wet roads.
e
For safety reasons, replace the tires before the
wear indicators appear. Snow tires are no longer
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
Place a conventional tread depth gauge or caliper
at 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 fitted
with summer tires at ambient temperatures
below 5 °F / –15 °C.
e
Avoid contact with gas, oil or grease.
e
Do not use tires that are older than 6 years.
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 example, the last
four numbers read 3018, then the tire was
produced in the 30th week of 2018.
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, as they have
trained technicians and the necessary parts and
tools.
Changing a wheel
Information
Unevenly worn tires indicate a fault in the vehicle:
e
Visit an authorized Porsche dealer, as they have
trained technicians and the necessary parts and
tools.
WARNING
Working under the
Vehicle
The vehicle can slip off the jack.
e
Make sure that there is no one inside the vehicle
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 car on stable supports if you
have to work underneath it. The vehicle jack is not
suitable for this purpose.
Information
In the event of a breakdown, a wheel change is not
necessary as tire sealant and the electric compressor
are provided in the trunk as standard.
f
Please see chapter „Flat Tire“ on page 100.
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.
For information on the tool required: Contact an
authorized Porsche dealer.
21_718_GT4_Spyder_BAL_21_WKD 982 02 21 21_KW36.20-24.21_en_US.book Seite 224 Freitag, 24. Juli 2020 11:31 11