2009 PORSCHE PANAMERA sensor

Driving and Driving Safety
187
Traffic situations in which vehicles are
not reliably detectedThe radar sensor for adaptive cruise control
scans a narrow, cone-shaped area in front of
your vehicle.
Detection can be limited or unreliable, depending
on the traffic situation and the size of the vehicle
in front. The system may brake too late or
unexpectedly. Stationary vehicles are not
detected. The system is unable to react to them.
Tip on driving
fDrive with extreme care.
f Slow down if necessary.
A – Vehicles changing lanes/cutting in
If a vehicle is changing la nes or cutting in ahead of
you in the same lane, th e vehicle will only be
detected when it has moved completely into your
lane.
B – Vehicles with a small cross-section/
narrow vehicles
Narrow or small vehicles will not be detected or
will be detected too late.
C – Driving into and out of corners
When driving into and out of corners, vehicles will
not be detected or will be detected too early, or
adaptive cruise control will react to vehicles in
adjacent lanes.

188
Driving and Driving Safety
D – Vehicles with large overhangs
The tail of the vehicle will not be detected
correctly on vehicles with large overhangs,
e.g. lumber trucks.
Warning!
Risk of accidents. Danger of collision with the
vehicle in front.
f Drive with extreme care.
fSlow down if necessary.
E – Stationary vehicles
A stationary vehicle that appears suddenly in the
detection field of the radar sensor, e.g. after a
vehicle in front changes lanes, will not be detected
by the ACC.
Warning!
Risk of accidents. Danger of collision with the
stationary vehicle.
f Drive with extreme care.
fSlow down if necessary.

Driving and Driving Safety
203
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 vehicle reactions (Ferraria effect) when the
driver releases the accelerator pedal or brakes
on bends. This compensation functions up to
the maximum lateral acceleration.
– PSM actively stabilises the vehicle if necessary during dynamic driving maneuvers (e.g. rapid
steering movements, during lane changes, or
on alternating bends).
– Improved braking stability on bends and on different or varying road surfaces.
– Improved brake function and shorter 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:
–Speed
– Direction of travel (steering angle)
– Lateral acceleration
– Axial 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 required.
If necessary, PSM also influences the engine
power or the gear-changing characteristic of
Porsche Doppelkupplung (PDK) in order to
stabilise the vehicle. The events below inform the driver of PSM control
operations and warn him to adapt his driving style
to the road conditions:
– PSM warning light on the instrument panel
flashes.
– Hydraulic noises can be heard.
– The vehicle decelerates and steering-wheel forces are altered as PSM controls the brakes.
– Reduced engine power.
– The brake pedal pulsates and its position is changed during braking.
In order to achieve full vehicle deceleration,
foot pressure must be increased after the
brake pedal has begun vibrating.
Examples of PSM control operations
– If the “front wheels of the vehicle drift” on
a bend, the engine power is reduced and the
rear wheel on the inside of the bend is braked
if necessary.
– If the rear of the vehicle swings out on a bend, the front wheel on the outside of the bend is
braked.

Alarm System and Theft Protection
247
Alarm System and Passenger
Compartment MonitoringThis device complies with:
Part 15 of the FCC Rules
RSS-210 of Industry Canada.
Operation of this device is subject to the following
two conditions:
– It may not cause harmful interference, and
– it must accept any interference received including interference that may cause
undesired operation.
Note
The manufacturer is not responsible for any radio
or TV interference caused by unauthorized
modifications to this equipment.
Such modification could void the user's authority
to operate the equipment.
Warning!
Any changes or modifications not expressly ap-
proved by Porsche could void the user’s authority
to operate this equipment.
The alarm system monitors the following alarm
contacts:
– Alarm contacts in doors, tailgate, engine compartment lid and headlights
– Interior surveillance: Movement in the interior when the vehicle is locked, e.g. attempted
theft after breaking a window.
– Inclination sensor: Tilting of the vehicle (e.g. attempt to tow away the vehicle).
If one of these alarm contacts is interrupted,
the alarm horn sounds for approx. 30 seconds
and the emergency flasher flashes on and off.
After 5 seconds of interruption, the alarm is
triggered again. This cycle is repeated ten times.Switching onf The alarm system is activated when the vehicle
is locked. Switching offfThe alarm system is deactivated when the
vehicle is unlocked. Note on operation
f
If you unlock the vehicle with the emergency
key in the door lock, you must switch the
ignition on (ignition lock position 1) within
10 seconds of opening the door in order to
prevent the alarm system from being
triggered.
The vehicle is locked ag ain automatically after
20 seconds if no doors are opened.
Switching off the alarm system if it is
triggeredf Unlock vehicle doors with the remote control
or
Switch on ignition.Switching off interior surveillance and
inclination sensorIf people or animals are remaining in the locked
vehicle or the vehicle is being transported on
a train or ship, for example, the interior
surveillance system and inclination sensor must
be switched off temporarily.
f Inform any persons remaining in the vehicle
that the alarm system will be triggered if the
door is opened.
USA: KR55WK50138
Canada: 7812D-5WK50138

248
Alarm System and Theft Protection
Using the car key
f
Quickly press button on the remote control
twice .
The emergency flasher flashes slowly once.
The doors are locked but can be opened from
the inside by pulling on ce on the front door
opener or by pulling twice on the rear door
opener. On vehicles with Porsche Entry & Drive
f
Quickly press button A in the door handle
twice .
The emergency flasher flashes slowly once.
The doors are locked but can be opened from
the inside by pulling once on the front door
opener or by pulling twice on the rear door
opener.
Note on operation
The interior surveillance system and inclination
sensor remain switched off if:
– The interior surveillance system and inclination sensor were switched off when you last locked
the vehicle
and
the vehicle was locked automatically
30 seconds after unlocking because no door
was opened. Using the rocker switch
The rocker switch to switch off the passenger
compartment monitoring sy
stem is located next
to the driver’s seat.
1. Apply the electric parking brake.
2. Remove ignition key. On vehicles with Porsche Entry & Drive:
Switch off the ignition.
3. Open the driver‘s door.
4. Press the rocker switch. The rocker switch symbol lights permanently.
5. Lock the vehicle.

Alarm System and Theft Protection
249
Emergency flasher flashes twice and an
acoustic signal will sound twice.
The vehicle doors, the rear lid and the rear window
are locked but the doors can be opened from the
inside by pulling once on the front door opener or
by pulling twice on the rear door opener.
fInform any persons remaining in the vehicle
that the alarm system will be triggered if the
door is opened.
Note on operation
If the ignition is switched on after pressing the
rocker switch, the passenger compartment
monitoring system is activated again. The symbol
on the rocker switch will flash.
Activating the alarm system and the
passenger compartment monitoring system
f Unlock the vehicle and lock it again.
Fault indication
If the monitoring system could not be deactivated
the symbol on the rocker sw itch will flash (e.g. the
rocker switch is pressed with the ignition on).
For deactivating the passenger compartment
monitoring:
f Switch off ignition.
f Press the rocker switch.
f Lock the vehicle.
B- Indicator light for alarm system – example: driver’s
doorFunction indicationThe locking condition of the vehicle is indicated by
the indicator lights B in the front doors flashing at
different frequencies.
The indicator lights go out when the vehicle is
unlocked. Alarm system is activated
– The indicator lights flash quickly while you are
locking the vehicle, then flash normally.
Alarm system is activated, interior
surveillance and inclination sensor are
switched off
– The indicator lights flash quickly while you are locking the vehicle, go out for 10 seconds and
then flash normally.
Faults in the central locking system and
alarm system
The indicator lights come on for 10 seconds, flash
at double speed for 20 seconds and then flash
normally.
Avoiding false alarmsf If people or animals are remaining in the locked
vehicle or the vehicle is being transported on
a train or ship, for example, the interior
surveillance system an d inclination sensor
must be switched off temporarily.
f Always close the slide/tilt roof and all door
windows.

Maintenance and Car Care
263
How Emission Control WorksWhen an automobile engine is running, it uses
energy generated through the combustion of a
mixture of air and fuel. Depending on whether a
car is driven fast or slowly or whether the engine
is cold or hot, some of the fuel (hydrocarbons)
may not be burned completely, but may be
discharged into the engine crankcase or exhaust
system. Additonal hydrocarbons may enter the
atmosphere through evaporation of fuel from the
fuel tank. These hydrocarbons (HC), when
released into the air, co ntribute to undesirable
pollution.
In addition, carbon monoxide (CO) and oxides of
nitrogen (NOx) contribute to engine emissions.
They, too, are formed during the combustion
process and discharged into the exhaust system.
To reduce these pollutants, your Porsche is
equipped with a precisely calibrated fuel injection
system to assure a finely balanced air/fuel mixture
under all operating conditions.
Oxygen sensorThe oxygen sensor, installed in the exhaust pipe
continuously senses the oxygen content of the
exhaust and signals the information to an
electronic control unit. The control unit corrects
the air/fuel ratio, so the engine always receives an
accurately metered air/fuel mixture.Crankcase ventilationThrough crankcase ventilation, undesirable
emissions from the engine crankcase are not
permitted to reach the outside atmosphere. These
emissions are recirculated from the crankcase to
the air intake system. From here the emissions
mix with the intake air an d are later burned in the
engine.Catalytic convertersThe catalytic converters are efficient “clean-up”
devices built into the exhaust system of the
vehicle. The catalytic converters burn the
undesirable pollutants in the exhaust gas before it
is released into the atmosphere.
The exclusive use of unleaded fuel is
critically important for the life of the
catalytic converters. Therefore, only
unleaded fuel must be used. The catalytic converters will be damaged by:
– push or tow starting the vehicle
– misfiring of the engine
– turning off the ignition while the vehicle is
moving or
– driving until the fuel tank is completely empty
– by other unusual operating conditions.
f Do not continue to operate your vehicle under
these conditions, since raw fuel might reach
the catalytic converters. This could result in
overheating of the converters. Federal law
prohibits use of leaded fuel in this car.

Maintenance and Car Care
265
FuelWhen the ignition is on, the fuel level is displayed
on the instrument panel.
fPlease see the chapter “FUEL GAUGE” on
page 111.
Warning!
Fuel is highly flammable and harmful to
health.
f Fire, open flame and smoking are prohibited
when handling fuel.
f Avoid contact with skin or clothing, since injury
to your skin may occur.
f Do not inhale fuel vapors, since they may make
you ill and possibly cause death if inhalation is
prolonged and occurs in a closed space.
To prevent damage to the emission control
system and engine:
f Never drive the tank dry.
f Avoid high cornering speeds after the warning lights have come on.
f Please see the chapter “FUEL ECONOMY” on
page 264. To avoid permanent damage
to the functionality of
the catalytic converters and oxygen sensors, use
unleaded fuel only.
The engine is designed to provide optimum
performance and fuel consumption if unleaded
premium fuel with 98 RON/88 MON is used.
If unleaded fuels with octane ratings of less than
98 RON/88 MON are used, the engine’s knock
control automatically adapts the ignition timing.
Porsche recommends that you use fuel with
at least 95 RON/85 MON in your vehicle.
The emission control system can be damaged in
various ways (e.g. fueling incorrectly, shortage of
fuel, tow-starting).
f Please see the chapter “HOW EMISSION
CONTROL WORKS” on page 263. Note on operation
Information on the fuel quality can normally
be found on the pump.
If this is not the case, ask a fuel station attendant.
If the recommended fuel
is not available, you
can also use unleaded regular fuel (91 RON/
82.5 MON) in an emergency.
However, this could reduce performance and
increase fuel consumption.
f Avoiding driving at full throttle.
In some countries the available fuel quality may
not meet requirements and can result in coking
around the inlet valve.
In this case, the fuel may be mixed with the
additive sold and recommended by Porsche after
consulting a authorized Porsche dealer.
Porsche part number 000 043 206 89.
f Observe the instructions and mixture ratios
stated on the container.
It is important that the service intervals,
particularly the oil change intervals, are
observed in accordance with the specifications
in the “Maintenance” booklet.