
236
Practical Tips, Emergency Service 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 var-
iations in driving habits, service practices and dif-
ferences 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 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, result-
ing in serious personal injury or death. Tire pressures
Warning!
Incorrect tire pressure causes increased tire
wear and adversely affects road handling.
This could lead to tire failure, resulting in loss
of control, leading to serious personal injury
or death.
fAlways use an accurate tire pressure gage
when checking inflation pressures.
fDo not exceed the maximum tire pressure list-
ed on the tire sidewall.
Please see the chapter “TIRE PRESSURE PLA-
TE” on Page 285.fCold 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 measur-
ing cold pressures, since the pressures would
rise from temperature influence.
fValve caps protect the valve from dust and dirt,
and thus from leakage.
Always screw caps tightly down.
Replace missing caps immediately.
fUse only plastic valve caps.
fDo not use commercially available sealant or
tire inflating bottles. Only use Porsche
approved tire sealant.
fPlease see the chapter “TIRE PRESSURES FOR
COLD TIRES (68 °F / 20 °C)” on Page 289.

240
Practical Tips, Emergency Service
Danger!
Risk of serious personal injury or death.
Driving the vehicle with low tire pressure
increases risk of a tire failure and resulting
loss of control. Furthermore, low tire pres-
sure increases rate of wear of the affected
tires.
fCheck tires – including sidewalls – regularly for
foreign bodies, nicks, cuts, cracks and bulges.
fAfter driving off road, examine tires for signs
of damage such as cuts, tears, bulges or for-
eign objects stuck in the tread. Replace a dam-
aged tire if necessary.
fCross curb edges slowly and at right angles if
possible.
Avoid driving over steep or sharp curbs.
fIn cases of doubt, have the wheel (particularly
the inner side) checked by an authorized Porsche dealer.
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.

Practical Tips, Emergency Service
249
Changing a wheel
Warning!
Risk of serious personal injury or death. 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.
Your authorized Porsche dealer will be pleased to
advise you.1. Apply the handbrake fully and engage 1st gear
or PDK selector-lever position P and remove
the ignition key.
2. Switch on the hazard warning lights if neces-
sary.
3. 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.
4. Slightly slacken the wheel bolts of the wheel to
be changed.
5. Lift the car only at the specified jacking points.
6. Raise the car until the wheel lifts off the
ground.
Please see the chapter “LIFTING THE VEHICLE
WITH A LIFTING PLATFORM OR GARAGE LIFT”
on Page 254.
7. Remove 1 or 2 wheel bolts (see respective
illustration).
8. Screw in assembly aids instead of the wheel
bolts.
Screw in assembly aid for vehicles without Porsche
Ceramic Composite Brake9. Remove the remaining wheel bolts.
Note on operation
fTo remove or mount the spacers:
Please see the chapter “SPACERS 911
CARRERA, 911 CARRERA S” on Page 255.

252
Practical Tips, Emergency Service
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 luggage compartment.
The tire sealant comprises:
– A filler bottle
– A sticker denoting the maximum permissible
speed for the driver’s field of vision
– A filler hose
– A valve turner and
– A spare valve insert.
Danger!
Risk of accident, resulting in serious per-
sonal injury or death.
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 due to
caustic chemical properties of the tire sealant.
fKeep tire sealant away from children.
fDo not inhale vapors, due to consequent harm
to personal health resulting in serious personal injury or death.
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 immediately.
fChange soiled clothing immediately.
fGet medical attention 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.
Get medical attention immediately.

Practical Tips, Emergency Service
259
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.
We recommend using genuine Porsche fuses
for replacement.
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.

Technical Data
291
Weights Coupé911 Carrera Manual transmission Porsche Doppelkupplung
Empty weight (depending on equipment) 1415 kg to 1515 kg 1445 kg to 1545 kg
3120 lbs. to 3340 lbs.3186 lbs. to 3406 lbs.
Maximum gross weight 4012 lbs./1820 kg 4079 lbs./1850 kg
Maximum axle load, front* 1709 lbs./775 kg 1709 lbs./775 kg
Maximum axle load, rear* 2601 lbs./1180 kg 2601 lbs./1180 kg
Maximum useful load, Roof Transport System** 165 lbs./75 kg 165 lbs./75 kg
911 Carrera S Manual transmission Porsche Doppelkupplung
Empty weight (depending on equipment) 1425 kg to 1520 kg 1455 kg to 1550 kg
3142 lbs. to 3351 lbs.3208 lbs. to 3417 lbs.
Maximum gross weight 4034 lbs./1830 kg 4101 lbs./1860 kg
Maximum axle load, front* 1709 lbs./775 kg 1709 lbs./775 kg
Maximum axle load, rear* 2601 lbs./1180 kg 2601 lbs./1180 kg
Maximum useful load, Roof Transport System** 165 lbs./75 kg 165 lbs./75 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.

292
Technical Data
Weights Coupé911 Carrera 4 Manual transmission Porsche Doppelkupplung
Empty weight (depending on equipment)1470 kg to 1565 kg 1500 kg to 1595 kg
3241 lbs. to 3450 lbs. 3307 lbs. to 3516 lbs.
Maximum gross weight 4123 lbs./1870 kg 4189 lbs./1900 kg
Maximum axle load, front* 1819 lbs./825 kg 1819 lbs./825 kg
Maximum axle load, rear* 2690 lbs./1220 kg 2690 lbs./1220 kg
Maximum useful load, Roof Transport System** 165 lbs./75 kg 165 lbs./75 kg
911 Carrera 4S Manual transmission Porsche Doppelkupplung
Empty weight (depending on equipment)1480 kg to 1570 kg 1510 kg to 1610 kg
3263 lbs. to 3461 lbs. 3329 lbs. to 3527 lbs.
Maximum gross weight 4145 lbs./1880 kg 4211 lbs./1910 kg
Maximum axle load, front* 1819 lbs./825 kg 1819 lbs./825 kg
Maximum axle load, rear* 2690 lbs./1220 kg 2690 lbs./1220 kg
Maximum useful load, Roof Transport System** 165 lbs./75 kg 165 lbs./75 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.

Technical Data
293
Weights Cabriolet911 Carrera Manual transmission Porsche Doppelkupplung
Empty weight (depending on equipment) 1500 kg to 1575 kg 1530 kg to 1605 kg
3307 lbs. to 3472lbs. 3373 lbs. to 3538 lbs.
Maximum gross weight 4145 lbs./1880 kg 4211 lbs./1910 kg
Maximum axle load, front* 1709 lbs./775 kg 1709 lbs./775 kg
Maximum axle load, rear* 2690 lbs./1220 kg 2690 lbs./1220 kg
911 Carrera S Manual transmission Porsche Doppelkupplung
Empty weight (depending on equipment) 1510 kg to 1580 kg 1540 kg to 1610 kg
3329 lbs. to 3483 lbs.3395 lbs. to 3549 lbs.
Maximum gross weight 4167 lbs./1890 kg 4233 lbs./1920 kg
Maximum axle load, front* 1709 lbs./775 kg 1709 lbs./775 kg
Maximum axle load, rear* 2690 lbs./1220 kg 2690 lbs./1220 kg
* The maximum gross weight must not be exceeded.
Note: If additional accessories are installed, the useful load will be correspondingly less.