sensor PORSCHE CAYNNE S 2005 1.G User Guide

122
Controls, Safety, Instruments The rain sensor remains switched off if the wiper
lever is already in position 1 when the ignition is
switched on.
To switch the rain sensor on again:
fMove wiper stalk to position 0 and then to
position1 – switching on is confirmed by one
wipe of the windscreen – or
fOperate windscreen washer system 5–
switching on is confirmed by three wipes of the
windscreen – or
fChange the sensitivity of the rain sensor with
four-stage switch A.Changing the sensitivity of the rain sensor
Sensitivity can be set with switch A in 4 stages:
fAdjust switch A upwards –
high sensitivity.
The setting is confirmed by one wipe of the
windshield.
fAdjust switch A downwards –
low sensitivity.
2 – Front windshield wiper – slow
fMove wiper stalk upwards to the second click.
3 – Front windshield wiper – fast
fMove wiper stalk upwards to the third click.
At speeds of less than approx. ca. 2.5 mph
(4 km/h), rain sensor operation mode is automat-
ically activated if the windshield wiper is switched
on. If you exceed a speed of approx. 5 mph
(8 km/h), the system switches to the pre-selected
wiper level.
4 – Front windshield wiper – one-touch oper-
ation
fMove wiper stalk downwards. The front wind-
shield wipers go through one wipe cycle.5 – Front windshield wipers and washer sys-
tem
fPull wiper stalk towards the steering wheel.
The washer system sprays and wipes while the
lever is pulled towards the steering wheel.
When the wiper lever is released, a few drying
wipes are executed.
Headlight washer (on vehicles with Bi-Xe-
non headlights):
The washer sprays only while low beam or high
beam is switched on.
To activate the headlight washer system, the
wiper lever must be pulled for a longer period
of time.
The spray duration is limited.
Maintenance note
fIf heavily soiled, repeat wash.
fPersistent dirt (e.g. insect remains) should be
regularly removed.
Please observe the chapter “CAR CARE IN-
STRUCTIONS” on Page 265.
Thefront windscreen washer nozzles are heat-
ed when the ignition is on, as a precaution against
freezing.

128
Controls, Safety, Instruments The heated rear window is ready for operation
when the ignition is on.
Switching onfPress button B.
Indicator light in button lights up.
Depending on the outside temperature, the
heating switches off automatically after approx.
5 to 20 minutes.
The heating can be switched back on again by
pressing the switch again.Switching offfPress button B.
Indicator light in button goes out.
Heated Rear Window
Cover Flap of the Air-Conditioning
Control PanelOpening the cover flapfSwivel cover flap on the handle (arrow) down-
wards. Other buttons for operating the air-con-
ditioning system are uncovered.SensorsTo avoid damaging the air-conditioning system:
fDo not cover the sun sensor on the instrument
panel and temperature sensor E on the front
control panel of the air-conditioning system.

132
Controls, Safety, Instruments
Automatically Controlled Two-Zone
Air ConditioningDepending on various factors (e.g. sunlight, air
quality), the air-conditioning system controls the
preset interior temperature fully automatically.
If necessary, the automatic system can be manu-
ally influenced.
This individual adjustment is shown on the air-con-
ditioning display panel.
DisplayThe air-conditioning display panel shows the
following:
– Air quantity
– Selected interior temperature, left/right
– Individual settings
– Time that is identical to that shown in the in-
strument panel.
A- Windshield defroster
B-Heated rear window
C- AUTO button (automatic mode)
D- Recirculated air, automatic recirculated air
E-Temperature sensor
F- Air-conditioning display
G- Air-quantity button, for the left or right side
H- Temperature button, left side
I- Air to windshield
K- Air to central and side vents
L- Air to footwell
M- ECON button (air-conditioning compressor off/on)
N- REST button (engine residual heat)
O- Temperature button, right side

136
Controls, Safety, Instruments
Automatically Controlled
Four-Zone Air ConditioningDepending on various factors (e.g. ambient tem-
perature, sunlight, air quality), the air-conditioning
system controls the preset interior temperature
fully automatically.
Temperature, air quantity and air distribution can
be set individually for the front left, front right, rear
left and rear right air-conditioned areas.If necessary, the automatic system can be manu-
ally influenced.
This individual adjustment is shown on the air-con-
ditioning display panel.
DisplayThe air-conditioning display panel shows the fol-
lowing:
– Air quantity
– Selected interior temperature
– Individual settings
– Time that is identical to that shown in the in-
strument panel.
Control panel for air-conditioned areas –
front and rearA- Windshield defroster
B-Heated rear window
C- AUTO button (automatic mode)
REST button (engine residual heat)
D- Recirculated air, automatic recirculated air
E-Temperature sensor
F- Air-conditioning display
G- Air-quantity button, left
H- Temperature button, left
I- Air to windshield, left
K- Air to left central and side vents
L- Air to footwell, left
M- Setting for air-conditioned areas, rear
N- ECON button (air-conditioning compressor off/on)
O- Air to windshield, right
P- Air to right central and side vents
Q- Air to footwell, right
R- Temperature button, right
S- Air-quantity button, right

Controls, Safety, Instruments
163
Front ultrasound sensorsSensors
Six ultrasound sensors in the front and rear
bumpers measure the distance to the closest ob-
stacle.
– Range of outer sensors
(front and rear):
approx. 24 in. (60 cm)
– Range of front middle sensors (arrow):
approx. 48 in. (120 cm)
Rear ultrasound sensors– Range of rear middle sensors (arrow)
(only in vehicles without spare wheel bracket):
approx. 59 in. (150 cm)
– Range of rear middle sensors
(only in vehicles with spare wheel bracket):
approx. 48 in. (120 cm)
Obstacles cannot be detected in the "blind" sensor
area (above and below the sensors).Maintenance note
fThe sensors must always be kept free of dust,
ice and snow in order to ensure that they are
fully functional.
fDo not damage sensors by abrasion or
scratching.
fMaintain sufficient distance when cleaning with
steam-jet units.
The sensors will be damaged if the pressure is
too high.
Note on operation
The rear ultrasound sensors may not function
correctly if tires that have not been recommended
by Porsche are fitted on the spare wheel bracket.
If the spare wheel bracket is open, this may impair
the function of the rear ultrasound sensors.
In vehicles that have air suspension with level
control and height adjustment, the system may
not recognise obstacles near the ground at terrain
level or special terrain level.

164
Controls, Safety, Instruments
A- Front display – left monitoring area
B- Front display – right monitoring areaWarning indicators, signal tones, distances
The warning indicator for the front area is located
on the dashboard.
The warning indicator for the rear area is located
in the rooflining at the rear of the loadspace.
The warning indicators for the various monitoring
areas (left and right) are subdivided respectively
into one green, 4 yellow and 2 red light segments.
C- Rear display – right monitoring area
D- Rear display – left monitoring areaIf ParkAssist is activated, the green light seg-
ments of the active warning indicators are lit up
continuously.
If the vehicle approaches an obstacle that has
been detected by the sensors, one or more of the
yellow or red light segments lights up, depending
on the distance to the obstacle.If the first yellow light segment lights up, the ob-
stacle is still 48 in. (120 cm) (to the front) or 48 in.
to 59 in. (120 to 150 cm) (to the rear) away.
A brief signal tone sounds when reversing.
Anintermittent tone sounds when the distance
becomes less than approx. 24 in. (60 cm). The
fourth yellow light segment lights up.
Acontinuous tone sounds when the distance be-
comes less than approx. 10 in. (25 cm) (on vehi-
cles with trailer coupling: approx. 14 in. (35 cm)).
Thesecond red light segment lights up.
If the obstacle is approached even closer, the sys-
tem may not be able to recognize the obstacle any
longer.
fSet the radio volume so that the signal tones
are not drowned out.
You can have the volume of the signal tones ad-
justed to your own requirements at your autho-
rized Porsche dealer.
Note on operation
If the obstacle is approached even closer after the
continuous tone sounds and the second red light
segment lights up, the system may not be able to
recognize the obstacle any longer.

Controls, Safety, Instruments
165
Limits of ultrasonic measurement
– ParkAssist cannot detect sound-absorbing ob-
stacles (e.g. powder snow),
– Sound-reflecting obstacles (e.g. glass surfac-
es, flat painted surfaces),
– And very thin obstacles.
Other ultrasound sources (e.g. pneumatic brakes
of other vehicles, jackhammers) can interfere with
detection of obstacles.
Fault indication without warning tone
All red light segments of the active warning indica-
tors light up when there is a temporary fault in
ParkAssist.
Note
Correct operation is no longer ensured if there is
a temporary fault (e.g. caused by ice formation or
heavy soiling on the sensors).
The system detects the temporary fault.
All light segments light up until a speed of
9 mph (14 km/h) is reached.
ParkAssist is ready for operation again when the
interference has been eliminated.Fault indication with warning tone
In the event of a long-lasting fault in ParkAssist,
the red light segments of the active warning indi-
cators light up and a continuous tone sounds for
three seconds after a transmission range has
been selected.
Possible causes
– Defect or system fault.
fSwitch ParkAssist off.
When ParkAssist is switched off, the indicator
light in the button lights up.
fPlease have the fault remedied at an autho-
rized Porsche dealer.Driving with a trailer
The ParkAssist rear monitoring area is switched
off when the trailer’s power supply is plugged in.

194
Controls, Safety, Instruments
Trailer Coupling
Warning!
Risk of accident.
fFollow the operating instructions for the trailer
recommended by the trailer manufacturer.
fDo not modify or repair the trailer coupling.
fBefore having new ADAPTER fitted, find out
from your authorized Porsche dealer about the
current authorization status.fUse only ADAPTER makes tested and ap-
proved by Porsche.
fEnsure that all trailer equipment conforms to
the appropriate classification for total gross
trailer weight and tongue weight.
fPlease observe the chapter “WEIGHTS” on
Page 363.
fPlease observe the chapter “LOADING INFOR-
MATION” on Page 195.
RetrofittingHave a trailer coupling retrofitted only by an autho-
rized Porsche dealer. The dealer is familiar with
the manufacturer's specifications and any neces-
sary conversion measures.Electrical connectionYour Porsche is equipped with a 7-pin connector A
for the electrical connection to the trailer.
Warning!
Risk of accident. Failure to keep an electrical
adapter clean may result in corrosion and af-
fect operation of electrical lines, resulting in
possible trailer brake system failure.
fPeriodically inspect and clean adapter as needed.
Hitching trailerfAlways turn off the alarm system before you at-
tach a trailer. The inclination sensor could trig-
ger the alarm unintentionally.
fFollow the operating instructions for the trailer
recommended by the trailer manufacturer.
fPlease observe the chapter “WEIGHTS” on
Page 363.Unhitching trailerfIf the trailer is equipped with an overrun brake,
do not unhitch the trailer when its brake is still
applied.

220
Shifting Gear, Traction Systems
Porsche Stability Management (PSM)PSM is an active control system for stabilisation of
the vehicle during extreme driving maneuvres. It
operates together with the Porsche Traction
Management (PTM) system.
PSM makes use of both the ABD and TCS sys-
tems, as well as the known functions of the anti-
lock brake system (ABS) and engine drag torque
control system (MSR).
Safety notes!
In spite of the advantages of PSM, it is still the driv-
er’s responsibility to adapt his driving style and
maneuvres in line with road and weather condi-
tions, as well as the traffic situation.
The increased safety that is provided should not in-
duce 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 (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 in the event
of under and oversteering during dynamic
driving maneuvres (e.g. rapid steering move-
ments, during lane changes or on alternating
bends).
– Improved braking stability on bends and on dif-
ferent or varying road surfaces.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
– 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 ac-
tual 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 Tiptron-
ic in order to stabilise the vehicle.

Maintenance, Car Care
259
Fuel
Warning!
Fuel is highly flammable and harmful to
health.
fFire, open flame and smoking are prohibited
when handling fuel.
fAvoid contact with skin or clothing.
fDo not inhale fuel vapours.
To prevent damage to the emission control
system and engine:
fNever drive the tank completely out of fuel.
fAvoid high cornering speeds after the warning lights have come on.
fPlease observe the chapter “HOW EMISSION
CONTROL WORKS” on Page 264.
fPlease observe the chapter “LEVEL GAUGE”
on Page 76.
To avoid permanent damage to the functionality of
the catalytic converters and oxygen sensors, use
only unleaded fuel.
The engine is designed to provide optimum
performance and fuel consumption if unleaded
premium fuel with 98 RON/88 MON is used.
If unleaded premium fuels with octane numbers of
at least 95 RON/85 MON are used, the en-
gine's knock control automatically adapts the igni-
tion timing.
Filler flapThe filler flap is located in the rear right wing and
is electrically opened with pull-button A in the driv-
er's door.
The pull-button is also ready for operation when
the ignition is switched off.
Fuel quality labelOpening
fOperate pull-button A in the driver's door.
The filler flap pops open.
Closing
fClose the filler flap until it clicks shut.
f f f