2004 PORSCHE CAYENNE stop start

158
Driving and Driving Safety
Ignition lock positions:
0- Initial position
1- Ignition on
2-Start engine
3- Ignition offIgnition Lock/Steering Lock
Caution!
Risk of damage. The ignition lock may be da-
maged if additional weight is attached to the
inserted ignition key, e.g. a heavy bunch of
keys and/or key tag.
fDo not attach a heavy weight to the inserted ig-nition key.
Ignition lock positions with Porsche Entry & Drive:
0- Initial position
1- Ignition on
2-Start engine
3- Ignition offThe ignition lock has a total of four ignition lock
positions.
Note on operation
The car key rebounds to the initial position from
every ignition lock position.
For vehicles that have Porsche Entry & Drive
you do not need to insert the key into the ignition
lock again but merely keep it with you. The ignition key is replaced by a control unit in the
ignition lock, which always remains in the ignition
lock, unless the vehicle is being towed.
Removing the control unit from the ignition
lock
fPress button A and remove the control unit.
Ignition lock position 0 - Initial positionThe ignition key cannot be withdrawn when the ig-
nition is switched on or when the engine is started.
To withdraw the ignition key:
fStop the vehicle.
fOn vehicles with Tiptronic S:
Move Tiptronic selector lever to position P.
fSwitch ignition off.
fWithdraw the ignition key.
Note on operation
The vehicle battery discharges if the ignition key is
left inserted.
fIf the vehicle battery is dead, the key can only
be pulled out of the ignition lock if the emergen-
cy operation is performed:
Please see the chapter “EMERGENCY OPERA-
TION - UNLOCKING THE IGNITION KEY” on
Page 159.
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Driving and Driving Safety
159
Ignition lock position 1 - Ignition onfTurn ignition key to position 1.
Note on operation
All electrical equipment can be switched on.
The warning lights light up for a lamp check.
fPlease see the chapter “INSTRUMENT PANEL
USA MODELS” on Page 117.
If a load is not switched on for 10 minutes after
switching on the ignition, the ignition must be
switched on again.
Turn the ignition key to ignition lock position 3
(ignition off) first.Ignition lock position 2 - Starting enginefTurn ignition key to ignition lock position 2.Ignition lock position 3 - Ignition offfTurn ignition key to ignition lock position 3.
fFor further information on starting and stop-
ping the engine:
Please see the chapter “STARTING AND STOP-
PING THE ENGINE” on Page 160.
Locking the steering column Vehicles without Porsche Entry & Drive
The steering column is automatically locked
when the ignition key is withdrawn from the
ignition lock and is automatically unlocked
when the ignition key is inserted into the ignition
lock.
Vehicles with Porsche Entry & Drive
The steering column is automatically locked
when the ignition is switched off and the vehicle is
locked.
Manually locking the steering column on
vehicles with Porsche Entry & Drive
fDepress the clutch on vehicles with manual
transmission.
fOnce the ignition is switched off, turn the
control unit again to ignition lock position 3
and hold it there for 2seconds.
The steering column is automatically unlocked
by turning the control unit from ignition lock
position 0.
Emergency operation - unlocking the
ignition keyIf the vehicle battery is dead, the key can only be
pulled out of the ignition lock if the emergency
operation is performed.
1. Turn ignition key counter-clockwise.
2. Press a pointed object, e.g. a ballpoint pen, in
the opening A next to the ignition lock and
keep pressed.
3. Remove ignition key.
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160
Driving and Driving Safety
Starting and Stopping the EnginefPlease see the chapter “IMMOBILIZER” on
Page 248.
fPlease see the chapter “EMISSION CONTROL
SYSTEM” on Page 263.
Danger!
Risk of poisoning. Exhaust gas contains
colorless and odorless carbon monoxide
(CO), which is toxic even in low concentra-
tion. Carbon monoxide can cause uncon-
sciousness and even death if inhaled.
fNever start or let the engine run in an en-
closed, unventilated area. It is not recommen-
ded to sit in your car for prolonged periods
with the engine on and the car not moving.
An unattended vehicle with a running engine
is potentially hazardous. If warning lights
should come on to indicate improper opera-
tion, they would go unnoticed.
fNever leave the engine idling unattended.
Danger of fire.
fDo not drive or park your car where combus-
tible materials, such as dry grass or leaves,
can come into contact with the hot exhaust
system.
fIf your car catches on fire for any reason, call
the fire department. Do not endanger your life by attempting to put out the fire.
Starting vehiclefOperate footbrake.
fFully depress and hold the clutch pedal. Put the
gearshift lever in neutral or on vehicles with
Tiptronic S:
move the Tiptronic selector lever to position P
or N.
fDo not press the accelerator pedal. The engine
control module will provide the correct starting
mixture.
fTurn ignition key to ignition lock position 2.
fDo not operate the starter longer than approx.
10 seconds. If necessary, repeat the starting
procedure after a pause of approx.
10 seconds. Turn the ignition key back to
ignition lock position 3 first.
Notes on operation
The first operation of the starter is ended auto-
matically when the engine starts.
If the engine does not start, subsequent starter
operations will not be ended automatically.
When the engine ist started, the warning lights
must go out.fDo not warm up the engine when stationary.
Drive off immediately.
Avoid high revolutions and full throttle until the
engine has reached operating temperature.
fIf battery output is insufficient, jump leads can
be used to start the engine.
Please see the chapter “EMERGENCY
STARTING WITH JUMPER CABLES” on
Page 323.
Note on operation
To ensure a good charge condition for the battery
and thus its ability to start the engine, all electrical
accessories which are not required should be
switched off when the ignition is switched on and
when engine revolutions are low (in stop and go
traffic).
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Driving and Driving Safety
161
StoppingfWithdraw the ignition key only when the vehicle
is stationary, otherwise the steering lock
engages and the vehicle cannot be steered.
fOnly switch the ignition off when the vehicle
comes to a stop, as there is no steering assis-
tance and brake boost when the engine is
switched off.
fWhen leaving the vehicle, always remove the
ignition key and engage the parking brake.
Engage the parking lock on vehicles with
Tiptronic S (Tiptronic selector lever position
P). Engage first gear or reverse gear on vehic-
les with manual transmission.
The control unit always remains in the ignition
lock in vehicles that have Porsche Entry &
Drive.
Note on operation
The vehicle battery discharges if the ignition key is
left inserted.
Warning!
Danger of injury. Hot engine compartment
components can burn skin on contact.
fBefore working on any part in the engine
compartment, turn the engine off and let it cool
down sufficiently.
Risk of burn injury when standing near or co-
ming into contact with the exhaust pipe.
The exhaust pipe is hot when the vehicle is running
and remains hot for some time after the vehicle is
turned off.
fTo prevent injury, make a point of noting where
your vehicle’s exhaust pipe is, avoid placing
your legs near the exhaust pipe when loading
and unloading cargo in the rear, and closely
supervise children around the vehicle during
time when the exhaust pipe could be hot. A hot exhaust pipe can cause serious burns.Radiator fans
The radiator and radiator fans are in the front of
the car.
Warning!
Danger of injury. After the ignition is
switched off, the engine compartment and
coolant temperatures are monitored for
approx. 30 minutes. During this period, and
depending on temperature, the radiator fan
may continue to run or start to run.
fCarry out work in these areas only with the engine off and exercise extreme caution.
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Driving and Driving Safety
163
The warning lights will go out after the parking
brake is fully released.
The warning lights are not an indicator that the
parking brake is fully applied; it is only intended to
be a warning to release the parking brake before
driving the car.
Caution!
A partially engaged brake will overheat the
rear brakes, reduce their effectiveness and
cause excessive wear.
fRelease the parking brake fully.
fWhen parking your car, press down firmly on
the foot pedal.
fMove the Tiptronic selector lever to “P”
(Tiptronic) or move the gearshift lever to
reverse or first gear (Manual transmission).
fOn hills also turn the front wheels towards the
curb.
BrakesfMake it a habit to check the operation of your
brakes before driving.
Keep in mind that the braking distance increases
very rapidly as the speed increases. At 60 mph
(100 km/h), for example, it is not twice but four
times longer than 30 mph (50 km/h). Tire traction
is also less effective when the roads are wet or
slippery.
fTherefore, always maintain a safe distance
from the car in front of you.Vehicles without Porsche Ceramic
Composite Brake (PCCB)Even though the brake discs consist of alloyed
grey cast iron, they will unavoidably start to cor-
rode if your car is parked for an extended period.
The brakes will tend to “rub” as a result.
The nature, extent and effects of corrosion
depend on the amount of time the vehicle was
parked, whether road salt or grit was spread and
whether grease-dissolving agents were used in
car washes.
If the braking comfort is noticeably impaired, we
recommend having the brake system checked by
experts at an authorized Porsche dealer.
Brake system functionYour Porsche is equipped with a power assisted
hydraulic dual circuit brake system with disc
brakes at the front and rear.
Both circuits function independently. One brake
circuit operates the front left and rear right wheel
and the other operates the front right and rear left
wheel.
If one brake circuit has failed, the other will still
operate. However, you will notice an increased
pedal travel when you apply the brakes.Failure of
one brake circuit will cause the stopping distance
to increase.
Warning!
Risk of an accident, resulting in serious per-
sonal injury or death.
In the unlikely event of hydraulic failure of
one brake circuit:
fPush the brake pedal down firmly and hold it in
that position. A mechanical linkage activates
the second circuit, and you will be able to bring
the vehicle to a stop.
fAfter bringing your vehicle to a complete stop,
avoid driving the vehicle and instead have it
towed to the nearest authorized Porsche dealer for repair.
Parking Brake warning
light USA
Parking Brake warning
light Canada
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Driving and Driving Safety
183
Porsche Stability Management (PSM)PSM is an active control system for stabilization of
the vehicle during extreme driving maneuvers. It
operates together with the Porsche Traction
Management (PTM) system.
PSM makes use of both the ABD and TCS
systems, as well as the known functions of the
anti-lock brake system (ABS) and engine drag
torque control system (MSR).
Warning!
In spite of the advantages of PSM, it is still the
driver’s responsibility to adapt her/his driving style
and maneuvers in line with road and weather
conditions, as well as the traffic situation.
The increased safety that is provided should not
induce you to take greater risks with your safety.
The limits set by the physics of driving cannot be
overcome, even with PSM.
Risks of accident due to inappropriate speed
cannot be reduced by PSM.Advantages of PSM
– Best possible traction and lane-holding ability
in all driving situations – even on road surfaces
with varying friction.
– The system compensates for undesired vehi-
cle reactions (load-alteration effect) when the
driver releases the accelerator pedal or brakes
on bends. This compensation functions up to
the maximum lateral acceleration.
– PSM actively stabilizes the vehicle as required
during dynamic driving maneuvers (e.g. rapid
steering movements, during lane changes or
on alternating bends).
– Improved braking stability on corners and on
different or varying road surfaces.
– Improved brake functioning and reduced
stopping distance in the event of emergency
braking.Readiness for operation
PSM is switched on automatically every time you
start the engine.
Function
Sensors at the wheels, brakes, steering system
and engine continuously measure:
– Driving speed
– Direction of travel (steering angle)
– Lateral acceleration
– Longitudinal acceleration
– Rate of turn about the vertical axis
PSM uses these values to determine the direction
of travel desired by the driver.
PSM intervenes and corrects the course if the
actual direction of motion deviates from the
desired course (steering-wheel position):
It brakes individual wheels as needed. If neces-
sary, PSM additionally influences the engine power
or the gear-changing characteristic of the
Tiptronic in order to stabilize the vehicle.
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198
Driving and Driving Safety Note on operation
fActivate the Low Range program before taking
extreme upward or downward gradients.
Tips on driving
fDo not perform manual gear changes when
driving, and try to avoid stopping.
fAvoid high engine speeds (max. 2,500 rpm).
Traction on uphill slopesNote on operation
fActivate the Low Range program and engage
differential locks if necessary.
Tips on driving
fWhen driving uphill, go easy on the accelerator
and make sure that wheels have sufficient
traction (don't spin).
fAvoid high engine speeds (max. 2,500 rpm).
fDrive slowly.
Driving downhill
Danger!
There is a danger of serious personal injury
or death and risk of damage if the vehicle
should overturn.
fDo not drive over embankments or slopes at
steep diagonal angles.
fDrive downhill slowly, with the wheels pointing
straight ahead.
fIf the vehicle starts to tilt, immediately steer in
the direction of the tilt (line of slope).
fWhen driving downhill, never let the vehicle roll
when in idle.
fUse engine braking effect.
If the engine braking effect is not adequate, gently apply the foot brake.Note on operation
fActivate the Low Range off-road driving
program. The off-road ABS is switched on
automatically.
Tips on driving
fDo not perform manual gear changes when
driving, and try to avoid stopping.
fAvoid high engine speeds (max. 2,500 rpm).
A special circuit in the off-road ABS permits con-
trolled brief lock-up of the front wheels so that they
can dig into the loose surface more effectively.
Locked wheels slip and can no longer be steered.
fWhen driving down steep hills on unpaved
surfaces, brake carefully so that vehicle does
not start to slide.
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200
Driving and Driving Safety Soiling can impair the braking action.
fCheck and clean the brakes if they have been
soiled.
Danger of steering assistance failing during
a long journey in the water if the drive belt
slips.
fIf the steering assistance fails, more effort will
be required to steer.
Danger of damaging electrical systems
fAvoid driving through salt water.
Notes on operation
fActivate the Low Range program.
fSwitch the air conditioner off.
fSwitch the headlights off.Tips on driving
fAvoid high engine speeds (max. 2,500 rpm).
fDo not perform manual gear changes when
driving, and try to avoid stopping.
Moving off in the water can be difficult due to
the high resistance and the loose surface
involved.
fStart the water crossing at a shallow place at
walking speed.
fAfter checking the body of water, take the
shortest path through it.
fNever drive into the water at high speed. The
resulting “bow wave” could damage the engine
and its accessories.
fAdjust your driving style to the unfamiliar sur-
roundings.
fCross the body of water slowly and at a con-
stant speed.
fNever turn around when crossing a body of
water.
fIf it is not possible to cross the body of water,
the car must be backed out of it in reverse
gear.
The servo pump and alternator can fail if the car is
driven through water for an extended period.
fIf the servo pump fails, substantially more
force will have to be exerted in order to steer. Maintenance Note
The car requires a special check after the water
crossing.
fRemove mud from the tire tread.
fBriefly apply the brakes in order to dry them
after driving through the water.10_Cayenne_21_KW17.book Seite 200 Donnerstag, 9. April 2009 3:33 15