2009 PORSCHE PANAMERA tires

Minor Repairs
285
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 replac ed 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 replacementsfUse 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 specific ation 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 tire s 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 hand ling 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.
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
Danger!
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 causing serious
personal injury or death. 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.
Maintenance note
Tire repairs are not permissible under any
circumstances.
Wheel alignment, wheel balancingAs 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.

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Self-adhesive weights must not come into contact
with cleaning agents, since they could drop off.
Uneven tread wear indica
tes wheel imbalance. In
this event, the vehicle should be checked at an
authorized Porsche dealer.
Danger!
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 reme died, you might lose
control of your vehicle which could cause
serious personal injury or death.
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) sensorsBefore changing wheels, make sure that the
wheels are compatible with your vehicle’s TPM.
fCheck this with your authorized Porsche
dealer.Removing and storing tiresfAfter changing, adjust tire pressure and torque
wheel bolts diagonally.
Please see the chapter “CHANGING A WHEEL”
on page 291.
f Store tires in a co ol 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.
Note
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 three
numbers read 1208, then the tire was produced in
the 12th week of 2008.

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Snow tiresThe 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.
Danger!
Risk of loss of control and damage to the
vehicle as well as serious personal injury or
death.
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.
Danger!
Risk of serious personal injury or death.
Driving the vehicle with low tire pressure
increases increases risk of a tire failure and
resulting loss of control. Furthermore, low
tire pressure increases rate of wear of the
affected tires and cause damage.
Tires with badly worn treads and studs are
very dangerous and could cause accidents
resulting in serious pe rsonal injuries or
death.
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. Maintenance note
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.
Danger!
Risk of accident and serious personal injury
or death due to excessive speed.
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.

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Snow chains
Warning!
Risk of damage to body, axle or brake
components.
f Use only the fine-link snow chains recom-
mended and authorized by Porsche so that
sufficient clearance between the wheel well
and the chain is assured.
f Please see the chapter “WHEELS, TIRES” on
page 325.
f Follow instructions issued by the supplier of the chains.
Fit snow chains only on the rear axle.
f Remove spacers if snow chains are mounted.
f Before fitting chains, remove accumulated ice
and snow from the wheel well.
f Vehicles with snow chains must not be driven
faster than 30 mph (50 km/h) .
Different states and countr ies have varying statu-
tory requirements regarding maximum speed.
f Check with local authorities for possible
restrictions.
f Remove chains as soon as the roads are free
of ice and snow.
Example of InscriptionInscription on radial tireA – Tire size
Example: P 265/40ZR18 (101Y)
–P - The tire is designed for Passenger vehicle.
This information is not included on all tires.
– 265 - Indication of tire width in mm
– 40 - Indication of tire height to tire width ratio
in percent
– ZR - Belt type code letter for radial
– 18 - Indication of rim diameter in inches
– 101 - Load capacity coefficient –
Y - Speed code letter
– XL (Extra Load) - Tire with increased load
rating
B – TIN (Tire Identification Number)
Example: DOT xx xx xxxx xxxx
–DOT The DOT symbol indicates that the tires
comply with the requirements of the
US Department of Transportation and provides
information about:
– first two-digit code means manufacture’s identification mark.

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– second two-digit code means tire size.
– third four-digit code means tire type code.
– fourth four-digit code means date of manufacture.
If, for example, the last four numbers read
1204, the tire was produced in the 12th week
of 2004.
C – Tire ply composition and material
The number of layers in the tread and sidewalls
and their material composition.
D – Maximum permissibl e inflation pressure
The maximum permissible cold inflation pressure
to which a tire can be inflated.
f Do not exceed the permissible inflation
pressure.
E – Maximum Load rating
The maximum load in kilograms and pounds can
be carried by the tire. If you replace tires always
use a tire that has the same maximum load rating
as the factory installed tire.
F – Radial
The identification indicates if the tire has radial
structure.
G – Term of tubeless or tube tire
Identification for tubeless tires. Speed code letters
The speed code letter
Y indicates the maximum
permitted speed for the tire.
This code letter is shown on the tire sidewall.
Tip on driving
Tires with a maximum speed rating that is lower
than the specified maximum vehicle speed may be
mounted only if they bear an M+S identification on
the tire sidewall.
f Please note that in addition to snow tires,
all-season tires are also subject to speed limits
and bear this identification.
G- Rim width in inches
H - Rim-flange contour code letter
I - Symbol for drop-center rim
J - Rim diameter in inches
K -Double hump
L - Rim offset in mmInscription on alloy wheelsThe information is inscribed on the back of the
spokes near the tire valve.
T
= up to 118 mph (190 km/h)
H = up to 131 mph (210 km/h)
V = up to 150 mph (240 km/h)
W = up to 167 mph (270 km/h)
Y = up to 186 mph (300 km/h)
(Y) = up to 186 mph (300 km/h) as for Y tires.
Speeds of more than 185 mph
(300 km/h) are also possible at
a maximum tire load capacity of 85 %
(confirmation from tire manufacturer
required for speeds of more than
185 mph (300 km/h)).

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Screw in one assembly aid on vehicles without PCCB8. Screw in assembly aids instead of wheel bolts.
Caution!
Risk of damage to brake discs.
f Always screw in the assembly aids when changing a wheel.
Screw in two assembly aids on vehicles with PCCB9. Remove the remaining wheel bolts.
10.Take the wheel off and put a new wheel on.
fPlease see the chapter “WHEEL BOLTS” on
page 293.
11.Insert wheel bolts and tighten by hand.
12.Remove assembly aids and screw in remaining wheel bolts.
Initially tighten bolts only slightly in
diagonally opposite sequence so that
the wheel is centerd. 13.Inflate the tire if necessary.
f
Please see the chapter “TIRE PRESSURE FOR
COLD TIRES (68 °F/20 °C)” on page 326.
14.Lower the vehicle fully and remove the jack.
15.Tighten wheel bolts in diagonally opposite sequence.
Immediately after changing a wheel, use
a torque wrench to check the prescribed
tightening torque of the wheel bolts
(160 Nm/118 ftlb.).
Note on operation for vehicles with Tire
Pressure Monitoring
f On vehicles with Tire Pressure Monitoring, the
settings on the multi-function display must be
updated after the wheel change.
f Please see the chapter “TIRE PRESSURE
MONITORING (TPM)” on page 127.

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5. Screw filler hose B onto the filler bottle.The filler bottle is now open.
6. Unscrew valve cap from the tire valve F.
7. Remove valve insert E from the tire valve with
valve turner D.
Keep the valve insert in a clean, dry place.
8. Remove plug C from the filler hose B.
9. Push filler hose onto the tire valve.
10.Hold the filler bottle higher than the level of the
tire valve and squeeze it forcefully until the
bottle is completely emptied into the tire.
11.Pull filler hose off the tire valve.
12.Twist the valve insert firmly into the tire valve using the valve turner.
13.Connect the compressor to a vehicle plug socket and inflate the tire to at least 37 psi
(2.5 bar).
If this tire pressure cannot be reached, the tire
is too severely damaged. You must not
continue driving with this tire.
14.Screw valve cap onto the tire valve. 15.After driving for approx. 10 minutes, check the
tire pressure.
If the tire pressure is less than 22 psi (1.5 bar),
do not continue driving.
If a value of more than 22 psi (1.5 bar) is
indicated, correct the pressure to the
prescribed value.
f Please see the chapter “TIRE PRESSURE FOR
COLD TIRES (68 °F/20 °C)” on page 326.
16.Please contact a qualified specialist workshop. We recommend that you have an authorized
Porsche dealer to do this work as they have
trained workshop personnel and the necessary
parts and tools.
f Please also make sure to follow the separate
instructions for use for the tire sealant.
Note on operation for vehicles with Tire
Pressure Monitoring
f The settings for Tire Pressure Monitoring must
be updated on the multi-function display after
filling the tire with sealant.
f Please see the chapter “OVERVIEW OF
WARNING MESSAGES” on page 152. Care instructions
After drying, any sealan
t that emerges can be
peeled off like a film.
Warning!
Risk of accidents, resulting in serious
personal injury or death.
f Have the tire replaced by a specialist
workshop as soon as possible.
Inform the specialist workshop that the tire
contains sealant.
f Avoid hard acceleration and high cornering
speeds.
f Observe the maximum speed of 50 mph
(80 km/h).
f Always observe the safety and operating
instructions, which can be found in the
separate operating instructions for the sealant and on the compressor.

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Replacing the batteryThe service life of the battery is subject to normal
wear; it depends greatly on care, climatic
conditions, and driving conditions (distances,
loads).
f Only use an original Porsche battery, with the
correct part number, as a replacement. Only
this battery meets the spec ific requirements of
the vehicle.
f Please observe the disposal instructions for
batteries.
Putting vehicle into operationAfter the battery is connected or after a fully
discharged battery is charged, the PSM warning
light lights up on the instrument panel and
a message appears on the multi-function display
in the instrument panel to indicate a fault.
This fault can be corrected with a few
simple steps:
1. Start the engine. To do this, turn the igni tion key or the control
unit (on vehicles with Porsche Entry & Drive)
to ignition lock position 2, twice .
2. With the vehicle stationary, perform a few steering movements to the left and right and
then drive a short distance in a straight line
until the PSM warning light goes out and the
message is erased from the multi-function
display in the instrument panel.
3. If the warnings do not disappear, then:
Drive carefully to the nearest authorized
Porsche dealer to have the fault corrected.
4. After the warnings go out: Stop the vehicle in a suitable place.
5. Store the end position for the power windows. For information on storin
g the end positions for
the power windows:
f Please see the chapter “STORING END
POSITION OF THE DOOR WINDOWS AFTER
CONNECTING THE VEHICLE BATTERY” on
page 88.
6. Teach tires on vehicles with Tire Pressure Monitoring.
For information on teaching the Tire Pressure
Monitoring system:
f Please see the chapter “TIRE PRESSURE
MONITORING (TPM)” on page 127.
7. Store end position on vehicles with a slide/ tilt roof.
For information on storing the end position for the
slide/tilt roof:
f Please see the chapter “STORING END
POSITION OF THE SLIDE/TILT ROOF” on
page 90.