2005 PORSCHE CAYENNE S engine

126
Controls, Safety, Instruments
Resuming the stored speedfPull back the operating lever to position 1.
Note on operation
The stored speed should only be recalled when
traffic conditions and the road surface so permit.Switching cruise control readiness offfPush forward the operating lever to position 2
until it clicks audibly into place.
The memory is cleared and the green
readiness light goes out.
When the vehicle is parked and the ignition
switched off, the memory is cleared.
Tip on driving
On upward or downward slopes, the set speed
cannot always be maintained by cruise control.
fTo obtain sufficient engine braking or a better
engine-speed range, therefore, you have to
change down to a lower gear.

Controls, Safety, Instruments
127
A- Continuous opening and closing
B- Setting vent directionVentsfRotate thumb wheel A upward.
fRotate thumb wheel A downward.
Changing air flow directionfSwivel vent fins B in the desired direction.
Note on operation
Fresh air or conditioned fresh air can be delivered
from all vents depending on the air distribution
setting.
Fresh-air intakeIn order to ensure unhindered air intake:
fKeep the fresh-air intake between the wind-
shield and the engine compartment lid free
from snow, ice and leaves.
Opening vents
Closing vents

Controls, Safety, Instruments
129
Manual Air ConditioningAir quantity, air distribution, and temperature
can be set on the control panel of the manual air
conditioning.
This individual adjustment is shown on the
air-conditioning display panel.
DisplayThe air-conditioning display panel shows the
following:
– Air quantity,
–Air distribution,
– Selected interior temperature,
– Individual settings,
– Time that is identical to that shown in the
instrument panel.
A- Windscreen defroster
B-Heated rear window
C- Recirculated air
D- Air-conditioning display
E- Air-quantity button
F-Air to windscreen
G- Air to central and side vents
H- Air to footwell
I- ECON button (air-conditioning compressor off/on)
J- REST button (engine residual heat)
K-Temperature button

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

Controls, Safety, Instruments
135
ECON modeThe outside air that is flowing in does not dry up if
the air-conditioning compressor is switched off.
Warning!
Risk of accident due to hampered vision.
If the air-conditioning compressor is
switched off, the windows may mist up.
fDo not switch off the air-conditioning compres-sor in damp weather.
Switching air-conditioning compressor off
Whenever outside temperatures exceed 37.4°F
(3°C), the air-conditioning compressor is always
switched on in automatic mode.
The compressor can be switched off to save fuel,
but control comfort is then limited:
fPress ECON button M.
The ECON logo appears on the air-conditioning
display panel.
The air-conditioning compressor is switched
off.
Switching air-conditioning compressor on
fIf the interior temperature is too high:
Press ECON button Mor
Press AUTO button C.
Information on air-conditioning
compressorThe air-conditioning compressor:
– Can switch off briefly if engine is under an ex-
treme load to ensure sufficient engine cooling.
– Switches off automatically at temperatures be-
low approx. 37.4°F (3°C) and cannot be
switched on, even manually.
– Operates most effectively with windows
closed.
If the car has been in the sun for a long time,
however, it is a good idea to ventilate the
interior briefly with the windows open.
Notes on operation
Depending on the outside temperature and humid-
ity, condensation can drip from the evaporator
and form a pool under the car.
This is normal and not a sign of leakage.
If uncooled air flows out when the lowest temper-
ature has been set (“LO”), switch off the air-condi-
tioning compressor and have the fault remedied at
an authorized Porsche dealer.
REST modeUsing engine residual heat
The residual heat of the engine can be used to
heat the interior up to 20 minutes after the ignition
has been switched off.
fPress REST button N.
The air-conditioning settings cannot be
changed in REST mode.
Ending the function
fPress REST button N.
Note on operation
If the battery positive voltage is too low, REST
mode is automatically ended.
fPlease observe the chapter “WARNING LIGHTS
AND WARNING MESSAGES” on Page 108.

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

140
Controls, Safety, Instruments The air quantity can be selected individually for
each of the four air-conditioned areas.
– Front control panel:
The air flows to the windscreen.
– Rear control panel:
The air flows to the respective side window.
fPress button I or O.
fPress button K or P.
– Front control panel:
The air flows from the front central and side
vents.
– Rear control panel:
The air flows to the center vents.
fVents must be open.
fPress button L.
The air flows to the footwell.
Ending air distribution functions
fPress the relevant button again or
fPress the AUTO button.
ECON modeThe outside air that is flowing in does not dry up if
the air-conditioning compressor is switched off.
Warning!
Risk of accident due to hampered vision.
If the air-conditioning compressor is
switched off, the windows may mist up.
fDo not switch off the air-conditioning compres-sor in damp weather.
Switching air-conditioning compressor off
Whenever outside temperatures exceed 37.4°F
(3°C), the air-conditioning compressor is always
switched on in automatic mode.
The compressor can be switched off to save fuel,
but control comfort is then limited:
fPress ECON button N on the front control pan-
el. The air-conditioning compressor is
switched off.
Switching air-conditioning compressor on
fIf the interior temperature is too high:
Press ECON button Nor
Press the AUTO button C.
Information on air-conditioning
compressorThe air-conditioning compressor:
– Can switch off briefly if engine is under an ex-
treme load to ensure sufficient engine cooling.
– Switches off automatically at temperatures be-
low approx. 37.4°F (3°C) and cannot be
switched on, even manually.
– Operates most effectively with windows
closed.
If the car has been in the sun for a long time,
however, it is a good idea to ventilate the inte-
rior briefly with the windows open.
Notes on operation
Depending on the outside temperature and humid-
ity, condensation can drip from the evaporator
and form a pool under the car.
This is normal and not a sign of leakage.
If uncooled air flows out when the lowest temper-
ature has been set (“LO”), switch off the air-condi-
tioning compressor and have the fault remedied at
an authorized Porsche dealer.
Air to windshield and side windows
Air to central and side vents
Air to footwell

Controls, Safety, Instruments
141
Using engine residual heat
The residual heat of the engine can be used to
heat the interior up to 20 minutes after the ignition
has been switched off.
fPress AUTO/REST button C on the front
control panel.
The air-conditioning settings cannot be
changed in REST mode.
Ending the function
fPress AUTO/REST button C.
Note on operation
If the battery positive voltage is too low, REST
mode is automatically ended.
fPlease observe the chapter “WARNING LIGHTS
AND WARNING MESSAGES” on Page 108.fPress button M.
The Symbol appears on the display.
The rear air-conditioned areas can be con-
trolled from the front control panel.
Ending the function
fPress button M again.
Note on operation
The function is ended automatically 10 seconds
after the last settings are made.
REST mode
Controlling rear air-conditioned
areas with the front control panel