weight PORSCHE 911 2009 5.G User Guide

214
Maintenance, Car Care
Fuel Economy Fuel economy will vary depending on where,
when and how you drive, optional equipment
installed, and the general condition of your
car.
A car tuned to specifications and correctly
maintained, will help you to achieve optimal
fuel economy.
fHave your vehicle tuned to specifications.
Air cleaner should be dirt free to allow proper
engine “breathing”.
Battery should be fully charged.
Wheels should be properly aligned.
Tires should be inflated at correct pressure.
fAlways monitor your fuel consumption.
fDrive smoothly, avoid abrupt changes in speed
as much as possible.
fAvoid jack rabbit starts and sudden stops.
fDo not drive longer than necessary in the lower
gears. Shifting into a higher gear early without
lugging the engine will help save fuel.
fProlonged “warm up” idling wastes gas. Start
the vehicle just before you are ready to drive.
Accelerate slowly and smoothly.
fSwitch off the engine if stationary for longer
periods. fAny additional weight carried in the vehicle re-
duces fuel economy. Always keep cargo to a
minimum and remove all unnecessary items.
fOrganize your trips to take in several errands
in one trip.
fAll electrical accessories contribute to in-
creased fuel consumption.
fOnly switch on the air conditioning when neces-
sary.
fDo not drive with the Roof Transport System
mounted unless you need it.
The EPA estimated mpg. is to be used for
comparison purposes, actual mileage may
be different from the estimated mpg.,
depending on your driving speed, weather
conditions and trip length. Your actual
highway mileage will probably be less than
the estimated mpg.
fPlease observe all local and national speed
limits.
Operating your Porsche in other
Countries Government regulations in the United States and
Canada require that automobiles meet specific
emission regulations and safety standards. There-
fore, cars built for the U.S. and Canada differ from
vehicles sold in other countries.
If you plan to take your Porsche outside the conti-
nental limits of the United States or Canada, there
is the possibility that
– unleaded fuel may not be available;
– unleaded fuel may have a considerably lower
octane rating. Excessive engine knock and se-
rious damage to both engine and catalytic con-
verters could result;
– se rvice ma y be inade qua te due to lack of prop-
er service facilities, tools or diagnostic equip-
ment;
– replacement parts may not be available or very
difficult to get.
Porsche cannot be responsible for the
mechanical damage that could result
because of inadequate fuel, service or parts
availability.
If you purchased your Porsche abroad and want to
bring it back home, be sure to find out about ship-
ping and forwarding requirements, as well as cur-
rent import and customs regulations.

238
Practical Tips, Emergency Service B Vehicle load limit
Is the maximum total weight limit specified of
the load (passengers and cargo) for the vehi-
cle. This is the maximum weight of passengers
and cargo that can be loaded into the vehicle.
Please see the chapter “LOADING INFORMA-
TION” on Page 246.
C Tire size for the front axle
Check with your authorized Porsche dealer
about the current release status.
D Recommended tire pressure for the front axle
These values are for cold tires (68 °F/20 °C).
E Tire size for the rear axle
Check with your authorized Porsche dealer
about the current release status.
F Recommended tire pressure for the rear axle.
These values are for cold tires (68 °F/20 °C).
G In vehicles with collapsible spare wheel:
Size and tire pressure of the spare wheel.
Tire traction
Warning!
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 par-
tial or complete loss of traction, vehicle
control or stopping ability.
fReduce speed on wet surface to prevent this. Tire life Tire life depends on various factors, i. e., road
surfaces, traffic and weather conditions, driving
habits, type of tires and tire care.
fInspect 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 adja-
cent 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.
Snow tires lose their traction capability when their
tread depth falls below 5/32 in. (4 mm).
In the United States, state laws may govern the
minimum tread depth permissible. Follow all such
laws.

Practical Tips, Emergency Service
241
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 serious personal injury
or death.
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.
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 au-
thorized Porsche dealer.
Warning!
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 which could cause se-
rious personal injury or death.
fStop the vehicle and check the tires.
fIf 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 tires fAfter changing, adjust tire pressure and torque
wheel bolts diagonally to 94 ftlb (130 Nm).
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 perform-
ance are immune to the effects of storage and
age is unfounded.
Chemical additives, which make the rubber elas-
tic, lose their effectiveness in the course of time
and the rubber becomes brittle and cracks.
Therefore, the tires should be inspected from
time to time.

246
Practical Tips, Emergency Service
Loading InformationDefinitionsThe Curb weight - actual weight of your vehicle -
vehicle weight including standard and optional
equipment, fluids and emergency tools. This
weight does not include passengers and cargo.
The Gross Vehicle Weight is sum of the curb
weight and the weight of passengers and cargo
combined.
The Gross Vehicle Weight Rating is the maxi-
mum total weight of vehicle, passengers, luggage
and optional equipment.
The Gross Axle Weight Rating is the maximum
load limit for the front or the rear axle. This infor-
mation is located on the safety compliance sticker
located in the driver’s side door jamb.
For determining the compatibility of the tire and
vehicle load capabilities:
fPlease see the chapter “TECHNICAL DATA” on
Page 286.
The load capacity coefficient (e.g. “100”) is a min-
imum requirement.The Gross Combined Weight Rating is the
maximum total weight rating of vehicle, passen-
gers and cargo.
The Vehicle Capacity Weight - 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. This informa-
tion can be found on the tire pressure plate.
The maximum loaded vehicle weight is the
sum of curb weight, accessory weight, vehicle ca-
pacity weight and production options weight.
The load rating is the maximum load that a tire
is rated to carry for a given inflation pressure.
The maximum load rating is the load rating for
a tire at the maximum permissble inflation pres-
sure.
The cargo capacity is the permissible weight of
cargo, the substracted weight of passengers from
the load limit.
fNever exceed the permissible limits.
Danger!
Risk of loss of control, damage to the vehicle
and serious personal injury or death.
fNever exceed the specified axle loads.
Overloading can shorten the service life of the
tires and car, as well as lead to dangerous
vehicle reactions and long braking distances.
Damage due to overloading is not covered by the vehicle warranty.

Practical Tips, Emergency Service
247
Example for determining the combined weight of
occupants and cargoVehicle Load CapacityfThe combined weight of occupants and cargo
should never exceed the weight shown on the
tire plate in the vehicle.
Please see the chapter “TIRE PRESSURE PLA-
TE” on Page 285.
fNever exceed the number of passengers
shown on the tire pressure plate in the vehicle.Determining the combined weight of
occupants and cargo:
fAdd the weight of all occupants and then add
the total luggage weight (figure).
Steps for determining correct load limit
1. Locate the statement "The combined weight of
occupants and cargo should never exceed XXX
pounds" on your vehicle’s placard (depending
on the date of manufacture).
2. Determine the combined weight of the driver
and passengers that will be riding in your vehi-
cle.
3. Subtract the combined weight of the driver and
passengers from XXX kilograms or XXX
pounds.
4. The resulting figure equals the available
amount of cargo and luggage load capacity.
For example, if the "XXX" amount equals 1400
lbs. and there will be five - 150 lb passengers
in your vehicle, the amount of available cargo
and luggage load capacity is 650 lbs. (1400 -
750 (5 x 150) = 650 lbs.)
5. Determine the combined weight of luggage
and cargo being loaded on the vehicle. That
weight may not safely exceed the available car-
go and luggage load capacity calculated in
Step 4.

278
Practical Tips, Emergency Service
Adjusting HeadlightsfPlease see the chapter “LIGHTS, REPLACING
BULBS” on Page 269.
Adjustment
The adjustment is made with the vehicle ready to
drive and the fuel tank completely filled.
The driver’s seat must be loaded by a person or a
165 lbs. (75 kg) weight and the tire pressures
must meet the prescribed values.
After being loaded, the car must be rolled a few
meters so that the suspension can settle.
For checking the headlight adjustment, the verti-
cal position of the cutoff of the lowbeam (see fig.)
has to be projected on a vertical screen (wall) in
distance of 24.6 ft. (7.5 m) from the front lens of
the headlamp.
The correct position of the cutoff is 2.0 in. (5 cm)
at 24.6 ft. or 7.5 m (0.4°) below a horizontal line,
x cm from ground to the center of the headlamp
lens.Lateral adjustment of the headlights should be
carried out at a specialist workshop with an optical
adjustment unit.
Distance
Visual aim shall be performed at not less than
24.6 ft./7.5 m (this value is a rounded down con-
version from the 25-foot distance typical of field
aim using a screen). The 24.6 ft./7.5 m distance
is measured from the headlamp lens to the view-
ing screen.

284
Vehicle Identification, Technical Data
Vehicle IdentificationWhen ordering spare parts or making inquiries,
please always quote the vehicle identification
number. Vehicle data bankThe vehicle data bank is attached to the inside of
the “Maintenance” booklet.
It contains all important data about your vehicle.
Note
This data bank cannot be re-ordered if it is lost or
damaged.
This label contains the following information:
1. Vehicle Identification No.
2. Type/Type description
3. Engine code/Transmission code
4. Paint No./Interior
5. Optional equipment
Vehicle identification number In accordance with Federal Safety Regulations,
the vehicle identification number of your car is lo-
cated at the bottom left of the windshield frame
and can be seen from the outside.
The vehicle identification number is in the luggage
compartment under the battery cover and at the
bottom left behind the windshield.
Removing the battery cover
fPlease see the chapter “BATTERY” on
Page 261.
Safety compliance stickerThe safety compliance sticker is your assurance
that your new Porsche complies with all applicable
Federal Motor Vehicle Safety Standards which
were in effect at the time the vehicle was manufac-
tured.
fThe sticker also shows the month and year of
production and the vehicle identification
number of your car (perforations) as well as
the Gross Vehicle Weight Rating and the Gross
Axle Weight Rating.

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.