2005 PORSCHE CAYENNE TURBO radiator

Controls, Safety, Instruments
61
StoppingfWithdraw the ignition key only when the vehicle
is stationary, otherwise the steering lock en-
gages and the vehicle cannot be steered.
fOnly switch the ignition off when the vehicle
comes to a stop as the steering assistance
and brake boost are deactivated when the
ignition is switched off.
fAlways withdraw the ignition key and engage
the parking brake when leaving the vehicle.
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 com-
partment, turn the engine off and let it cool down sufficiently.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 ap-
prox. 30 minutes. During this period, and de-
pending on temperature, the radiator fan
may continue to run or start to run.
fCarry out work in these areas only with the en-gine off and exercise extreme caution.

Controls, Safety, Instruments
73
Temperature gaugePointer below 176°F (80°C) – engine cold
fAvoid high engine speeds and heavy engine
loading.
Pointer between 176°F (80°C) and 212°F
(100°C) – normal operating temperature
Pointer may move up to the red area when engine
is heavily loaded and outside temperature is high.
Engine coolant temperature warningA warning message will appear on the multi-pur-
pose display of the instrument panel if the engine
coolant temperature is too high.
fSwitch engine off and let it cool.
fCheck radiator and air passages in front end of
car for obstructions.
fCheck coolant level.
Add coolant if necessary.
Please have the fault remedied at an autho-
rized Porsche dealer.
fPlease observe the chapter “COOLANT LEVEL”
on Page 240.
Note on operation
To prevent excessive temperatures, the cooling
air guides must not be restricted by covers
(e.g. films, “stone guards”).
Engine coolant level warningA warning message will appear on the multi-pur-
pose display of the instrument panel if the engine
coolant level is too low.
fSwitch engine off and let it cool.
fTop up coolant.
Please have the cause of the fault remedied at
an authorized Porsche dealer.
fPlease observe the chapter “COOLANT LEVEL”
on Page 240.
Caution!
Risk of engine damage.
fDo not continue driving if the warning persists
even when the engine coolant level is correct.
fHave the fault remedied at your nearest autho-rized Porsche dealer.
Cooling System

234
Maintenance, Car Care
Exercise Extreme Caution when
Working on your Vehicle
Danger!
Ignoring the following instructions may
cause serious personal injury or death.
fThe engine compartment of any motor vehicle
is a potentially hazardous area. If you are not
fully familiar with proper repair procedures, do
not attempt the adjustments described on the
following pages.
This caution applies to the entire vehicle.
fO n l y w o r k o n y o u r v e h i c l e o u t d o o r s o r i n a w e l l
ventilated area.
fEnsure that there are no open flames in the
area of your vehicle at any time when fuel
fumes might be present. Be especially cau-
tious of such devices such as hot water heat-
ers which ignite a flame intermittently.
fBefore working on any part in the engine com-
partment, turn the engine off and let it cool
down sufficiently. Hot engine compartment
components can burn skin on contact.
fBe alert and cautious around engine at all
times while the engine is running.
If work has to be performed with the engine
running, always set the parking brake, and
make sure the selector lever is in position “P“
or “N“.fIn particular, be very careful to ensure that
items of clothing (ties, shirt, sleeves etc.), jew-
elry, long hair, hand or fingers cannot get
caught in the fan, belts or other moving parts.
The radiator and radiator fans are in the front
of the car.
The fans can start or continue running as a
function of temperature, even with the engine
switched off.
Carry out work in these areas only with the en-
gine off and exercise extreme caution.
fYour Porsche is equipped with an electronic ig-
nition system. When the ignition is on, high volt-
age is present in all wires connected with the
ignition system; therefore, exercise extreme
caution when working on any part of the engine
while the ignition is on or the engine is running.
fAlways support your car with safety stands if it
is necessary to work under the car. The jack
supplied with the car is not adequate for this
purpose.
fWhen working under the car without safety
stands but with the wheels on the ground,
make sure the car is on level ground, the
wheels are blocked, and that the engine can-
not be started.
Withdraw ignition keys (switch ignition off in ve-
hicles that have Porsche Entry & Drive).
fDo not smoke or allow an open flame around
the battery or fuel.
Keep a fire extinguisher in close reach.fIncomplete or improper servicing may cause
problems in the operation of the car. If in doubt
about any servicing, have it done by your au-
thorized Porsche dealer.
Improper maintenance during the warranty pe-
riod may affect your Porsche warranty cove-
rage.
fSupplies of fluids, e.g. engine oil, washer fluid,
brake fluid or coolant, are hazardous to your
health.
Keep these fluids out of children's reach and
dispose of them in accordance with the appro-
priate regulations.
fSome countries require additional tools and
special spare parts to be carried.
Please make enquiries before driving abroad.
Power measurementsPower measurements on dynamometers are not
approved by Porsche.

Maintenance, Car Care
235
Radiator fansThe radiator and radiator fans are in the front of
the car.
Warning!
Danger of injury. The fans can start running
as a function of temperature, even with the
engine switched off.
fExercise extreme caution when working in the area of the radiator fans.
Engine OilEngine oil consumption
It is normal for your engine to consume oil.
The rate of oil consumption depends on the quality
and viscosity of oil, the speed at which the engine
is operated, the climate, road conditions as well
as the amount of dilution and oxidation of the lubri-
cant.
If the vehicle is used for repeated short trips, and
consumes a normal amount of oil, the engine oil
measurement may not show any drop in the oil lev-
el at all, even after 600 miles (1000 km) or more.
This is because the oil is gradually becoming dilut-
ed with fuel or moisture, making it appear that the
oil level has not changed.
The diluting ingredients evaporate out when the
vehicle is driven at high speeds, as on an express-
way, making it then appear that oil is excessively
consumed after driving at high speeds.
If the conditions you drive your vehicle in are
dusty, humid, or hot, the frequency of the oil
change intervals should be greater.If the vehicle is driven at a high rate of speed, cli-
matic conditions are warm, and the load is high,
the oil should be checked more frequently, as driv-
ing conditions will determine the rate of oil con-
sumption.
– The engine in your vehicle depends on oil to lu-
bricate and cool all of its moving parts. There-
fore, the engine oil should be checked regular-
ly and kept at the required level.
– Make it a habit to have the engine oil level
checked with every fuel filling.
– The oil pressure warning light is not an oil level
indicator.
The oil pressure warning light indicates serious
engine damage may be occuring when lit, if en-
gine rpm is above idle speed.

236
Maintenance, Car Care
Engine Oil LevelfPlease observe the chapter “EXERCISE
EXTREME CAUTION WHEN WORKING ON YOUR
VEHICLE” on Page 234.
fPlease observe the chapter “WARNING LIGHTS
AND WARNING MESSAGES” on Page 106.
fCheck the oil level regularly. It is best to do this
when refuelling and before extended journeys.
Warning!
Engine oil is hazardous to your health and
may be fatal if swallowed.
fKeep engine oil out of children's reach.
Used engine oil contains chemicals that have
caused cancer in laboratory animals.
fAlways protect your skin by washing thorough-ly with soap and water.If the oil level is too low, this is indicated by the oil-
level warning light lighting up on the multi-purpose
display.
fCheck the oil level using the oil dipstick as
soon as possible and add engine oil if neces-
sary.
Note on operation
fIf the engine compartment lid is opened and oil
is not added, the warning message appears
again after approximately 62 miles (100 km).
Checking the oil level
Warning!
Danger of injury. The radiator fans can start
running as a function of temperature, even
with the engine switched off.
Risk of burning from hot parts in engine com-
partment.
fExercise extreme caution when working on the engine compartment.
Conditions for measuring the oil level
correctly
– Vehicle must be level.
– Engine must be switched off and at operating
temperature.
– Before the oil-level measurement, allow the en-
gine oil to flow back into the oil pan for around
3 minutes.
Oil-level warning

268
Practical Tips, Minor Repairs
Exercise Extreme Caution when
Working on your Vehicle
Danger!
Ignoring the following instructions may
cause serious personal injury or death.
fThe engine compartment of any motor vehicle
is a potentially hazardous area. If you are not
fully familiar with proper repair procedures, do
not attempt the adjustments described on the
following pages.
This caution applies to the entire vehicle.
fO n l y w o r k o n y o u r v e h i c l e o u t d o o r s o r i n a w e l l
ventilated area.
fEnsure that there are no open flames in the
area of your vehicle at any time when fuel
fumes might be present. Be especially cau-
tious of such devices such as hot water heat-
ers which ignite a flame intermittently.
fBefore working on any part in the engine com-
partment, turn the engine off and let it cool
down sufficiently. Hot engine compartment
components can burn skin on contact.
fBe alert and cautious around engine at all
times while the engine is running.
If work has to be performed with the engine
running, always set the parking brake, and
make sure the selector lever is in position “P“
or “N“.fIn particular, be very careful to ensure that
items of clothing (ties, shirt, sleeves etc.), jew-
elry, long hair, hand or fingers cannot get
caught in the engine-compartment blower, fan,
belts or other moving parts.
The radiator and radiator fans are in the front
of the car.
The fans can start or continue running as a
function of temperature, even with the engine
switched off.
Carry out work in these areas only with the en-
gine off and exercise extreme caution.
fYour Porsche is equipped with an electronic ig-
nition system. When the ignition is on, high volt-
age is present in all wires connected with the
ignition system; therefore, exercise extreme
caution when working on any part of the engine
while the ignition is on or the engine is running.
fAlways support your car with safety stands if it
is necessary to work under the car. The jack
supplied with the car is not adequate for this
purpose.
fWhen working under the car without safety
stands but with the wheels on the ground,
make sure the car is on level ground, the
wheels are blocked, and that the engine can-
not be started.
Remove the ignition key.fDo not smoke or allow an open flame around
the battery or fuel.
Keep a fire extinguisher in close reach.
fIncomplete or improper servicing may cause
problems in the operation of the car. If in doubt
about any servicing, have it done by your au-
thorized Porsche dealer.
Improper maintenance during the warranty pe-
riod may affect your Porsche warranty cover-
age.
fSupplies of fluids, e.g. engine oil, brake fluid or
coolant, are hazardous to your health. Keep
these fluids out of children's reach and dispose
of them in accordance with the appropriate
regulations.
fSome countries require additional tools and
special spare parts to be carried.
Please make enquiries before driving abroad.

Practical Tips, Minor Repairs
311
Fuse assignment – fuse box in engine compartmentNote
Use the plastic grippers from the fuse boxes in the dashboard to replace the fuses.No. Designation Rating in A
1
Fan
60
2Fan30
3
Secondary air pump
40
4 Secondary air pump40
567
Fuel injectors, ignition coils
20
8 Fuel injectors, ignition coils20
9
Engine control units
30
10 Engine components: radiator fans, afterrun pump, carbon canister valve, AC pressure sensor, tank leakage diagnosis 10
11
Engine components
15
12 E-box relay, secondary air pumps, afterrun pump relay5
13
Fuel pump
15
14 Fuel pump15
15
Engine control unit, fuel pump
10
16 Vacuum pump30
17
Oxygen sensors
15
18 Oxygen sensors7,5

364
Index Power windows .............................. 29
,30,31
Comfort function (windows).................... 30
One-touch operation .............................. 30
Opening/closing windows ...................... 29
Readiness for operation......................... 29
Storing end position .............................. 31
Switching off (rear)................................ 31
Power-transmission ..................................... 211
Preservation ............................................... 259
Pressure tester........................................... 298
PSM ........................................ 211
,214
,294
Deactivating ....................................... 216
Indicator light...................................... 110
Information light .................................. 216
Off road ............................................. 215
Switching on ....................................... 216
Warning light ............... 68
,70,110
,216
PTM.................................................. 211,212
RRadiator fans .............................................. 235
Radio
Tips ................................................... 167
Radio remote control .................................... 17
Changing the battery ........................... 326
Rain sensor ................................................ 119
Rain sensor operation ................................. 120
Reading light
Front.................................................. 144
Rear .................................................. 145
Rear differential lock ................................... 208
Rear fog light .................................... 114
,336Rear lid ............................................. 178
,179
Locking ................................................ 24
Opening ............................................... 24
Unlocking ............................................. 20
Rear light ................................................... 335
Rear seats.................................................... 37
Folding forward ..................................... 37
Rear window ............................................... 180
Locking ................................................ 24
Opening ........................................ 20,24
Unlocking ............................................. 20
Rear window wiper ...................................... 121
Rear-axle load ............................................. 191
Reduction ..................................................... 84
Reflector .................................................... 335
Refuelling ................................................... 251
Relays ........................................................ 302
Release button............................................ 198
Relocking, automatic ..................................... 21
Remote control ............................................. 17
Changing the battery ........................... 326
Removing spots and stains .......................... 259
Reserve ..................................................... 251
REST button ...................................... 127
,131
REST mode ....................................... 130,136
Reverse gear .............................................. 161
Reversing light ............................................ 336
Rims .......................................................... 221
Diameter ............................................ 282
Rim width ........................................... 282
Rocker switches ................................ 200,201
Roof console ..................................... 146,172
Roof Transport System .............. 189
,352
,354Running in Tires ............................................14
Running-gear control systems ......................211
Running-gear setup......................................231
Indicator light ......................................110
Warning light .......................................231
SSafety belts .........................................42
,264
Belt tensioner .......................................43
Fastening..............................................44
Height adjustment .................................45
Opening................................................44
Warning light .........................................43
Safety catch, engine compartment lid ...........181
Safety compliance sticker ............................345
Safety net........................172
,184
,185
,186
Assembly............................................186
Bracket ..............................................185
Permitted uses....................................185
Screewdriver ..............................................283
Sealant..................................90
,91,96,288
Warning light .......................................108
Sealing set .................................................288
Seals, care .................................................262
Seat heating ........................................40,132
For air-conditioned areas at the rear .......41
Rear ...................................................132
Switching off .........................................40
Switching on .........................................40