
Controls, Instruments
17
Keys fPlease observe the chapter “CENTRAL LO-
CKING IN CARS WITH ALARM SYSTEM” on
Page 21.
Two main keys and one spare key are supplied
with your Porsche.
These keys operate all the locks on your vehicle.
fBe careful with your car keys: do not part with
them except under exceptional circumstances.
fTo avoid battery run-down, always remove the
ignition key from the ignition lock.
Replacement keys Replacement car keys can be obtained only from
your authorized Porsche dealer, and this can so-
metimes be very time-consuming.
You should therefore always keep the spare key on
your person.
Keep it in a safe place (e.g. wallet), but under no
circumstances in or on the vehicle.
The key codes of new keys have to be “reported”
to the car control unit by your authorized Porsche
dealer.
The key grip of the spare key can be exchanged
for a main-key grip.
Disabling key codes
If a key is lost, the key codes can be disabled by
an authorized Porsche dealer.
All the remaining car keys are required for this pur-
pose.
Disabling the code ensures that the car can be
started only using authorized keys.
Note
fPlease note that the other locks can still be
opened with the disabled key.
Immobilizer There is a transponder (an electronic component)
in the key grip, containing a stored code.
When the ignition is switched on, the ignition lock
checks the code.
The immobilizer can be deactivated and the engi-
ne started only using an authorized ignition key.
Switching off the immobilizer
fInsert the ignition key into the ignition lock.
If the ignition is left on for more than 2 minutes
without starting the engine, the immobilizer is re-
activated.
fIf this happens, turn the ignition key back to the
3 position before starting the engine.
Please observe the chapter “IGNITION/STAR-
TER SWITCH WITH ANTI-THEFT STEERING
LOCK” on Page 68.
Switching off the immobilizer
fRemove ignition key.Security Wheel Bolts fIf wheels have to be removed during a work-
shop visit, do not forget to hand over the so-
cket for the security wheel bolts along with the
car key.

Maintenance, Car Care
177
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 (traffic lights, jams, level crossings). 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 increa-
sed fuel consumption.
fOnly switch on the air conditioning when neces-
sary.
The EPA estimated m.p.g. is to be used for
comparison purposes, actual mileage may
be different from the estimated m.p.g., de-
pending on your driving speed, weather con-
ditions and trip length. Your actual highway
mileage will probably be less than the esti-
mated m.p.g.
fPlease observe all local and national speed li-
mits.
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;
– service may be inadequate due to lack of pro-
per service facilities, tools or diagnostic equip-
ment;
– replacement parts may not be available or very
difficult to get.
Porsche cannot be responsible for the me-
chanical damage that could result because
of inadequate fuel, service or parts availabi-
lity.
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.

Practical Tips, Emergency Service
231
Winter drivingThe capacity and ability of the battery to store
power decreases at low outside temperatures.
Moreover, the battery is more heavily loaded in the
winter months, e.g. by the heated rear window,
the more frequent use of additional lights, the
blower and the windshield wipers, etc.
fHave the battery checked before winter
begins.
Keep the battery well charged to prevent it from
freezing.
A discharged battery can freeze even at
23°F/-5 °
C, but a fully charged one only freezes at
-40°F/-40 °C.
Laying up the vehicleIf the vehicle stands for long periods in the garage
or workshop, the doors and lids should be closed.
fPlease observe the chapter “EMERGENCY
UNLOCKING OF THE FRONT LUGGAGE
COMPARTMENT LID” on Page 228.
fWithdraw the ignition key and, if necessary,
disconnect the battery.
When the battery is disconnected, the
alarm system ceases to function!
Even if you put your vehicle out of operation, the
battery still discharges.
fThe battery must be charged, i.e. connected
to a charger, approximately every 6 weeks in
order to preserve functioning.
Always observe the instructions of the charger
manufacturer.
fStore a battery that has been removed in a
dark, cool place, but not subject to frost.
Replacing the batteryThe battery is subject to normal wear: its service
life depends heavily on the care you give it,
climatic conditions and the conditions of use
(distances, loads).
It is not possible to use the details on the battery
case to determine a comparable battery that
meets all the specific requirements of Porsche.
fUse only a battery that meets the specific
requirements of your vehicle as a replacement.
We recommend that you use an Orignal
Porsche battery.
fPlease observe the disposal instructions for
batteries!

Practical Tips, Emergency Service
235
Replacing the remote-control batteryThe battery should be changed when the range of
the radio remote control becomes smaller or
when the light-emitting diode no longer flashes
when the remote control is operated.1. Using your finger nail or a small screwdriver,
carefully lift off the cover of the key grip (ar-
row).
2. Replace battery (observe polarity).
Replacement battery – Lithium CR 2032,
3volts
3. Replace cover and press together firmly.
Please observe the disposal instructions for
batteries.