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Practical Tips, Emergency Service
209
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 con-
trolled conditions on specified government test
surfaces of asphalt and concrete.
A tire marked C may have poor traction perform-
ance.
Warning!
The traction grade assigned to this is based on
braking (straight-ahead) traction tests and does
not include cornering (turned) traction, accelera-
tion, hydroplaning or peak traction characteris-
tics. Temperature A, B, C
The temperature grades are A (the highest), B and
C, representing the tire’s resistance to the gener-
ation 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 mate-
rial 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 perform-
ance which all passenger car tires must meet un-
der the Federal Motor Vehicle Safety Standard No.
109.
Grades B and A represent higher levels of per-
formance on the laboratory test wheel than the
minimum required by law.
Warning!
The temperature grade for this tire is established
for a tire that is properly inflated and not overload-
ed.
Excessive speed, underinflation, or excessive
loading, either separately or in combination, can
cause heat buildup and possible tire failure.
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Practical Tips, Emergency Service
215
Tire replacements If in doubt, contact your Porsche dealer.
Use only tire makes and types approved 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 make and with the
same specification code (e.g. “N0”, “N1”...)
can be mounted.
Before mounting new tires, check with your
Porsche dealer about the current release
status.
Use tires with “ZR” quality standards. There
are currently no standards concerning tire
strength at speeds above 150 mph (240 km/h).
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.
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). If new tires are installed only on one axle, a notice-
able change in handling occurs due to the different
tread depth of the other tires.
This happens especially if only rear tires are re-
placed. However, this condition disappears as the
new tires are broken in.
fPlease adjust your driving style accordingly.
Installation of new tires should only be done by a
qualified tire technician.
Valves
Rubber valve stems must be replaced every time
a tire is replaced.
For metal valves, the installation and replacement
instructions must be observed.
fUse only genuine Porsche metal valves.
fProtect the valve inserts against soiling with
valve caps.
Soiled valve inserts can cause a gradual loss
of air.
fUse only plastic valve caps.
Parking at the curb
Warning!
Hard impacts against curbs (or traffic
islands) are dangerous and may cause hid-
den tire damage which is not noticeable until
later. Such damage can result in accidents at
high speeds causing severe personal injury.
Depending on the force of impact, the edge
of the rim can also be damaged.
fIf you are in doubt, have the wheel checked by
an expert, particularly if you suspect damage
on the inside.
fIf you must drive over a curb or other obstacle,
drive slowly and at an obtuse angle. Exercise care when parking along curbs.
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Practical Tips, Emergency Service
225
A- Filler bottle
B- Filler hoseTire sealantThe tire sealant can be used to seal small cuts,
especially in the tire tread.
Sealing the tire with the tire sealant is only an
emergency repair, so you can drive to the next
workshop. Even with the tire air-tight, it may be
used only for short journeys in an emergency.The tire sealant and a compressor with pressure
tester can be found in the tool box in the luggage
compartment.
The tire sealant comprises:
– A filler bottle
– A filler hose
– A valve turner and
– A spare valve insert
–A sticker denoting the maximum permissible
speed for the driver’s field of vision.
Danger!
Risk of accident.
fUse the tire sealant only in the case of cuts or
punctures no larger than 0.15 in. (4 mm).
fNever use the tire sealant if the rim is dam-aged.
Warning!
The sealant is highly flammable and harmful
to health.
fFire, naked flame and smoking are prohibited
when handling tire sealant.
fAvoid contact with skin, eyes or clothing.
fKeep tire sealant away from children.
fDo not inhale vapors.
In case of contact with the sealant:
fIf sealant gets on the skin or in the eyes,
thoroughly rinse the affected part of the body
off without delay.
fChange soiled clothing immediately.
fVisit a doctor immediately in the event of an
allergic reaction.
fIf sealant was swallowed, thoroughly rinse out
the mouth without delay and drink plenty of
water.
Do not induce vomiting.
See a doctor immediately.
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228
Practical Tips, Emergency Service
Changing a wheel
Warning!
Risk of injury. The car may slip off the jack.
fMake sure that no one is in the vehicle when
jacking up and changing a wheel.
fAlways place the car on stable supports if work
has to be carried out under the car.
Risk of damage to the brake discs of the
Porsche Ceramic Composite Brake (PCCB).
fAlways screw in both assembly aids when changing a wheel.
Note
The tools required for changing a wheel (e.g. jack,
wheel bolt wrench, assembly aids) are not sup-
plied with the car. They are available at your
authorized Porsche dealer.
1. Fully apply the handbrake, engage 1st gear or
select position P and withdraw the ignition key.
2. Secure the car against rolling away, e.g. by
means of wedges under the wheels on the op-
posite side.
This is particularly important on slopes.
Screw in assembly aid for vehicles without
Porsche Ceramic Composite Brake3. Slightly slacken the wheel bolts of the wheel to
be changed.
4. Raise the car until the wheel lifts off the
ground.
Please observe the chapter “LIFTING THE VE-
HICLE WITH A LIFTING PLATFORM OR GARAGE
LIFT” on Page 223.
Screw in two assembly aids for vehicles with
Porsche Ceramic Composite BrakeNote on operation
fTo remove or mount the spacers:
Please observe the chapter “SPACERS” on
Page 230.
5. Remove 1 or 2 wheel bolts (see respective
illustration). Screw in assembly aids instead of
the wheel bolts.
Remove the remaining wheel bolts.
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Practical Tips, Emergency Service
233
A - Diagnostic socket Replacing fuses In order to prevent damage to the electrical sys-
tem due to short circuits and overloads, the indi-
vidual circuits are protected by fuses.
The fuse box is located in the driver’s footwell.
A - Plastic gripper
B - Spare fuses
1. Switch off the load with the defective fuse.
2. Pull off plastic cover at the finger hole (arrow).
The fuse plan and instructions for
emergency unlocking of the luggage
compartment lid can be found on the inner
side of the cover.
3. Remove the corresponding fuse from its slot
using the plastic gripper A in order to check it.
A blown fuse can be identified by the melted
metal strip.
4. Replace only with fuses of the same rating.
Note
fIf a fuse blows repeatedly consult an author-
ized Porsche dealer.
fNever try to “repair” fuses: you may cause se-
rious damage to other parts of the electrical
system.
Page 272 of 280
272
Vehicle Identification, Technical Data
Weights
Manual transmission Tiptronic S
Empty weight (depending on equipment) 2954 lbs. to 3153 lbs. 3042 lbs. to 3241 lbs.
1340 kg to 1430 kg 1380 kg to 1470 kg
Maximum gross weight 3594 lbs./1630 kg 3682 lbs./1670 kg
Maximum axle load, front* 1709 lbs./775 kg 1709 lbs./775 kg
Maximum axle load, rear* 2072 lbs./940 kg 2072 lbs./940 kg
Maximum useful load, Roof Transport System** 132lbs./60 kg 132lbs./60 kg
*The maximum gross weight must not be exceeded.
Note: If additional accessories are installed, the useful load will be correspondingly less.
**Use only Original Porsche Roof Transport System