2011-2017 Porsche Cayenne SUV Minor Repairs -> Tires and Wheels User Manual
MyCarUserManual.com
USER MANUALS FOR EVERY MAKE & MODEL

Minor Repairs -> Tires and Wheels for Your Porsche Cayenne SUV Second Generation (2011-2017)

Minor Repairs 265
Tires and Wheels
The original equipment tires and wheel rims on
your Porsche comply with all applicable Federal
Motor Vehicle Safety Standards.
For your safety remember the following:
– Wheel rims and wheel bolts are matched to fit
your Porsche.
– If you intend to use other than original
equipment wheels, be sure that they conform
to Porsche specifications for your model. Only
tires with the same make and with the same
specification code (e.g. “N0”, “N1”...) can be
mounted.
– The use of wheel rims and wheel bolts that do
not meet specifications of the original factory
installed equipment will affect the safe
operation of your vehicle and affect warranty
coverage.
– Before you plan on exchanging wheels, or
snow tires already mounted on the wheel rims,
consult your authorized Porsche dealer.
Your dealer has the technical information
necessary to advise you which wheel rims and
wheel bolts are compatible with the original
factory installations.
Driving with damaged tires could cause you to
lose control of the vehicle.
f If while driving, your vehicle experiences a
sudden vibration or ride disturbance, and/or
you suspect that possible damage to your tires
or vehicle has occurred, you should
immediately reduce your speed without
excessive use of the brakes.
f Stop the vehicle as soon as possible, and
inspect the tires.
If you cannot determine the cause for the
disturbance, have your vehicle towed to the
nearest Porsche or tire dealer to have your
vehicle or tire(s) inspected.
f Continuing to operate the vehicle without
correction could result in a loss of control.
Example
Uniform Tire Quality Grading
Quality grades can be found where applicable on
the tire sidewall between tread shoulder and
maximum section width.
All passenger car tires must conform to Federal
Safety Requirements in addition to these grades.
Tire Damage While
Driving
DANGER
h
266 Minor Repairs
Treadwear
The treadwear grade is a comparative rating
based on the wear rate of the tire when tested
under controlled 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 government course as a tire
graded 100. The relative performance of tires
depends upon the actual conditions of their use,
however, and may depart significantly from the
norm due to variations in driving habits, service
practices and differences in road characteristics
and climate.
Traction AA, A, B, C
The traction grades, from highest to lowest, are
AA, A, B, and C and they represent the tire's ability
to stop on wet pavement as measured under
controlled conditions on specified government
test surfaces of asphalt and concrete. A tire
marked C may have poor traction performance.
Information
The traction grade assigned to this is based on
braking (straight-ahead) traction tests and does
not include cornering (turned) traction,
acceleration, hydroplaning or peak traction
characteristics.
Temperature A, B, C
The temperature grades are A (the highest), B and
C, representing the tire's resistance to the
generation of heat and its ability to dissipate heat
when tested under controlled conditions on a
specified indoor laboratory test wheel.
Sustained high temperatures can cause the
material of the tire to degenerate and reduce tire
life, and excessive temperature can lead to
sudden tire failure.
The grade C corresponds to a level of
performance which all passenger car tires must
meet under the Federal Motor Vehicle Safety
Standard No. 109.
Grades B and A represent higher levels of
performance on the laboratory test wheel than the
minimum required by law.
The temperature grade for this tire is established
for a tire that is properly inflated and not
overloaded. Excessive speed, underinflation, or
excessive loading, either separately or in
combination, can cause heat buildup and possible
tire failure.
f Do not exceed the permitted maximum speed
for the tires fitted to the vehicle.
f Ensure that the tires are set to the correct
inflation pressure.
f Observe the maximum load for the vehicle.
Tire pressures
Driving the vehicle with low tire pressure increases
risk of a tire failure and resulting loss of control.
Furthermore, low tire pressure increases rate of
wear of the affected tires and causes damage.
f Always use an accurate tire pressure gauge
when checking inflation pressures.
f Do not exceed the maximum tire pressure
listed on the tire sidewall. (Also refer to
“Technical data”).
f Please see the chapter “TIRE PRESSURE
PLATE” on page 268.
f Cold tire inflation pressure means: all tires
must be cold, ambient temperature maximum
68 °F (20 °C), when adjusting the inflation
pressure. Avoid sunlight striking the tires
before measuring cold pressures, since the
pressures would rise from temperature
influence.
f Valve caps protect the valve from dust and dirt,
and thus from leakage. Always screw caps
tightly down. Replace missing caps
immediately.
f Use only plastic valve caps.
f For safety reasons, don't use tire inflating
bottles.
Tire Abuse
WARNING
h
Low Tire Pressure
DANGER
h
Minor Repairs 267
f Please see the chapter “TIRE PRESSURE FOR
COLD TIRES 68 °F (20 °C)” on page 310.
Each tire, including the spare (if provided), should
be checked monthly when cold and inflated to the
inflation pressure recommended by the vehicle
manufacturer on the vehicle placard or tire infla-
tion pressure label. (If your vehicle has tires of a
different size than the size indicated on the vehicle
placard or tire inflation pressure label, you should
determine the proper tire inflation pressure for
those tires).
As an added safety feature, your vehicle has been
equipped with a tire pressure monitoring (TPM)
that illuminates a low tire pressure telltale when
one or more of your tires is significantly under-
inflated. Accordingly, when the low tire pressure
telltale illuminates, you should stop and check
your tires as soon as possible, and inflate them to
the proper pressure. Driving on a significantly
under-inflated tire causes the tire to overheat and
can lead to tire failure. Under-inflation also
reduces fuel efficiency and tire tread life, and may
affect the vehicle’s handling and stopping ability.
Please note that the TPM is not a substitute for
proper tire maintenance, and it is the driver’s
responsibility to maintain correct tire pressure,
even if under-inflation has not reached the level to
trigger illumination of the TPM low tire pressure
tell-tale.
For further information on the tire pressure
monitoring:
f Please see the chapter “TIRE PRESSURE
MONITORING (TPM)” on page 119.
When tires are warm, the tire pressure is
increased.
f Never let air out of hot tires. This could cause
the tire pressure to fall below the prescribed
value.
Insufficient tire pressure can cause tires to over-
heat and thus be damaged – even invisibly. Hidden
tire damage is not eliminated by subsequently
correcting the tire pressure.
Overloading
Overloading can lead to dangerous vehicle
reactions and long braking distances.
f Do not overload your vehicle. Be careful about
the roof load.
f If you plan to load the vehicle, first correct the
tire pressure. Tire pressure for loaded vehicle
can be found on the tire pressure plate and in
the chapter technical data.
f Never exceed the specified axle load.
Risk of damage to the vehicle and to the tires.
Damage due to overloading is not covered by the
vehicle warranty.
Tire damage may also be caused by overloading,
and this damage is not covered by your tire
warranty.
f Do not overload your vehicle. Be careful about
the roof load.
f If you plan to load the vehicle, first correct the
tire pressure. Tire pressure for loaded vehicle
can be found on the tire pressure plate and in
the chapter technical data.
f Never exceed the specified axle load.
f Please see the chapter “LOADING
INFORMATION” on page 221.
Overloading Tires
DANGER
h
NOTICE
268 Minor Repairs
Example of a tire pressure plate
Tire Pressure plate
Information on the tire pressure plate
A Seating capacity
Maximum number of vehicle occupants,
including the driver.
B Vehicle load limit
Is the maximum total weight limit specified of
the load (passengers and cargo) for the
vehicle. This is the maximum weight of
passengers and cargo that can be loaded into
the vehicle.
Please see the chapter “LOADING
INFORMATION” on page 221.
C Original tire size
Size of tires mounted at the factory.
D Recommended cold tire inflation pressure
These values are for cold tires (68 °F/20 °C).
Tire traction
When driving on wet or slushy roads, a wedge of
water may build up between the tires and the road.
This phenomenon is known as “hydroplane” and
may cause partial or complete loss of traction,
vehicle control or stopping ability.
f Reduce speed on wet surfaces to prevent this.
Hydroplaning
WARNING
h
Tire life
Tire life depends on various factors, i.e., road
surfaces, traffic and weather conditions, driving
habits, type of tires and tire care.
f Inspect your tires for wear and damage before
driving off. If you notice uneven or substantial
wear, wheels might need alignment or tires
should be balanced or replaced.
Tire wear
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).
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.
Worn tires cannot grip the road surface properly
and are even less effective on wet roads.
In the United States, state laws may govern the
minimum tread depth permissible. Follow all such
laws.
Driving on worn tires can result in loss of control
of the vehicle and could cause serious personal
injuries or death.
f Do not drive with worn tires or tires showing
cuts or bruises as they may lead to sudden
deflation and loss of control which could cause
severe personal injury.
Excessively-worn Tires
DANGER
h
Minor Repairs 269
f If you notice that tires are wearing unevenly,
consult your authorized Porsche dealer.
Uneven wear may not always be due to improper
wheel alignment. It can be the result of individual
driving habits such as cornering at high speeds. If
the tire pressure is not checked and adjusted
regularly, abnormal tire wear can also occur.
Tire care
f Avoid damaging tires and wheel rims.
f If you must drive over a curb or other obstacle,
drive slowly and at an obtuse angle.
f Check tires for uneven wear and damage
before driving off.
f Remove imbedded material.
f Replace worn or damaged tires immediately.
f Keep oil, fuel, brake fluid, etc. away from tires.
f Replace missing valve stem caps.
f Keep tires inflated correctly.
f Wash tires when washing the vehicle. Also
clean inner side of wheels.
f Do not use abrasive cleaners when washing
the wheels.
f Check wheel rims for corrosion.
f Remove road salt, if driving in winter.
Tire damage, puncture
f Please see the chapter “HIGH-PRESSURE
CLEANING EQUIPMENT, STEAM CLEANERS”
on page 255.
Driving the vehicle with low tire pressure increases
risk of a tire failure and resulting loss of control.
Furthermore, low tire pressure increases the rate
of wear of the affected tires.
f Check tires – including sidewalls – regularly for
foreign bodies, nicks, cuts, cracks and bulges.
f After driving off road, examine tires for signs
of damage such as cuts, tears, bulges or
foreign objects stuck in the tread. Replace a
damaged tire if necessary.
f Cross curb edges slowly and at right angles if
possible.
Avoid driving over steep or sharp curbs.
f In cases of doubt, have the wheel (particularly
the inner side) checked by an authorized
Porsche dealer.
In case of tire damage, where it is uncertain
whether there is a break in the ply with all its
consequences or tire damage caused by thermal
or mechanical overloading due to loss of pressure
or any other prior damage, we recommend that
the tire be replaced for safety reasons.
If one faulty tire is replaced it should be noted that
the difference in tread depth on one axle must not
exceed 30%. Handling inconsistencies may result.
f Perform a visual inspection if necessary.
Tire replacements
f Use only tire makes and types tested by
Porsche.
If you do not use a Porsche recommended
replacement tire, make sure that you
purchase your new tires from a reputable tire
dealer and that the dealer complies with all
manufacturers warnings for those tires.
Only tires with the same manufacturer and
with the same specification code (e.g. “N0”,
“N1”…) should be mounted on the vehicle.
Before mounting new tires, check with your
Porsche dealer about the current release
status.
Tires should be replaced no less than on one axle
at the time. Only tires of the same make and type
must be used. Mixed tires are not permissible and
will affect vehicle performance, safety, and can
affect vehicle warranty.
Porsche dealers can recommend the most current
replacement tire options for your vehicle.
Initially, new tires do not have their full traction.
You should therefore drive at moderate speeds
during the first 60 - 120 miles (100 - 200 km).
Tires must always remain on the same side of
the vehicle.
When wheels are removed, the direction of
rotation and position of each wheel should be
marked.
If new tires are installed only on one axle, a
noticeable change in handling occurs due to the
different tread depth of the other tires. This
happens especially if only rear tires are replaced.
However, this condition disappears as the new
tires are broken in.
f Please adjust your driving style accordingly.
Installation of new tires should only be done by a
qualified tire technician.
Damaged Tire Check
DANGER
h
270 Minor Repairs
Valves
f Use only plastic valve caps.
f The rubber valves must be replaced whenever
the tires are changed.
f The fitting and replacement specifications
must be observed for metal valves.
f Only use Original Porsche metal valves.
f Protect the valve inserts against soiling with
valve caps. Soiled valve inserts can cause a
gradual loss of air.
Parking at the curb
Hard impacts against curbs (or traffic islands) are
dangerous and may cause hidden tire damage
which is not noticeable until later. Such damage
can result in accidents at high speeds. Depending
on the force of impact, the edge of the rim can
also be damaged.
f After such an impact, have the wheel checked
by an expert.
f If you must drive over a curb or other obstacle,
drive slowly and at an obtuse angle.
Exercise care when parking along curbs.
Information
Tire repairs are not permissible under any
circumstances.
Wheel alignment, wheel balancing
As a precaution, have wheels with summer tires
balanced in the spring, and those with mud and
snow tires before winter. Unbalanced wheels may
affect car handling and tire life.
Only the specified weights may be used for wheel
balancing.
Self-adhesive weights must not come into contact
with cleaning agents, since they could drop off.
Uneven tread wear indicates wheel imbalance. In
this event, the vehicle should be checked at an
authorized Porsche dealer.
If, during a trip, uneven running or vibrations occur
that could be caused by damage to tires or the
car, the speed must be reduced immediately, but
without braking sharply. If you continue your trip
without having the cause of the fault remedied,
you might lose control of your vehicle.
f Stop the vehicle and check the tires.
f If no cause for the fault can be found, drive
carefully to the nearest authorized Porsche
dealer.
Wheels with Tire Pressure Monitoring
(TPM) sensors
Before changing wheels, make sure that the
wheels are compatible with your vehicle’s TPM.
f Check this with your authorized Porsche
dealer.
Removing and storing tires
f After changing, adjust tire pressure and torque
wheel bolts diagonally.
Please see the chapter “CHANGING WHEELS”
on page 275.
f Store tires in a cool and dry place. Rotate
periodically to avoid flat spots.
f Avoid contact with fuel, oil and grease.
Tires must always remain on the same side of
the vehicle.
When wheels are removed, the direction of
rotation and position of each wheel should be
marked.
Example
FR (front right), FL, RR and RL.
Wheels must always be fitted in accordance with
their marking.
The perception that tire durability and
performance are not affected by storage and age
is unfounded.
Chemical additives, which make the rubber
elastic, lose their effectiveness over the course of
time and the rubber becomes brittle and cracks.
Therefore, the tires should be inspected from
time to time.
Curb Impact / Tire
Damage
DANGER
h
High-Speed tire
Vibration
DANGER
h
Minor Repairs 271
Information
Under no circumstances should tires older than
6 years be used on your Porsche.
The age of the tire can be obtained from the “DOT”
code number. If, for example, the last four
numbers read 1208, then the tire was produced in
the 12th week of 2008.
Snow tires
The installation of Porsche approved snow tires is
recommended.
Use Porsche approved snow tires for grip on snow
and ice.
Check with your local Motor Vehicle Bureau for
possible restrictions.
The standard tires profile and rubber mixture are
optimized for wet and dry driving conditions, and
may not prove favorable for snow conditions.
f Install snow tires before driving in such
conditions.
Risk of insufficient road grip leading to loss of
control and damage to the vehicle.
The standard tires profile and rubber mixture are
optimized for wet and dry driving conditions, and
may not prove favorable for snow conditions.
f Install snow tires before driving in such
conditions.
Before mounting snow tires, consult with your
Porsche dealer. They have the technical
information necessary to advise you on wheel and
tire compatibility.
f Snow tires should have the same load capacity
as original equipment tires and should be
mounted on all four wheels.
Driving the vehicle with low tire pressure increases
risk of a tire failure and resulting loss of control.
Furthermore, low tire pressure increases the rate
of wear of the affected tires and causes damage.
Tires with badly worn treads are very dangerous
and could cause accidents.
f Make sure they are replaced immediately.
f Do not exceed the snow tire speed rating.
Snow tires do not have the same degree of
traction on dry, wet or snowfree roads as normal
tires.
Furthermore, snow tires wear rapidly under these
conditions.
Information
We recommend fitting winter tires on the vehicle at
temperatures below 45 °F (7 °C) since the driving
performance of summer tires is reduced at low
temperatures. Summer tires may be permanently
damaged at extremely low temperatures.
Winter tires do not fulfill their purpose if the tread
depth is less than 5/32 in. (4 mm).
Comply with all state and local laws
governing snow tire and tread depth
requirements.
Exceeding the maximum permitted speed for the
tires fitted could cause tire failure.
f Always check the maximum speed rating on
the tire sidewall on any tire on the vehicle.
f Never exceed the maximum speed rating of
the tires.
Wheel change
f When wheels are removed, mark the direction
of rotation and position of each wheel.
Example: FR (front right), FL, RR and RL.
f Always fit the wheels in accordance with the
markings.
Snow Tire Use
WARNING
h
NOTICE
Tire Hazards
DANGER
h
Excessive Speed for
Tires
DANGER
h

Related Topics

Minor Repairs
Exercise Extreme Caution when Working on your vehicle Warning triangle First aid kit Tool kit Jack Spacers Wheel Bolts Changing Wheels Fixing a Flat Tire Inflating Tires Electrical System Battery External Power Supply, Emergency Starting with Jumper Cables Changing the Remote Control Battery Replacing Bulbs Headlight Adjustment Towing

Popular Owner Manuals

Audi
Audi
BMW
BMW
Citroen
Citroen
Ford
Ford
Honda
Honda
Peugeot
Peugeot