2004 PORSCHE CAYENNE engine

Maintenance and Car Care
275
UndercoatingThe underside of your car is durably protected
against chemical and mechanical influences.
As it is not possible to exclude the risk of damage
to this protective coating in day to day driving, it
is advisable to have the underside of the car
inspected at certain intervals - preferably before
the start of winter and again in spring - and the
undercoating restored as necessary.
Your authorized Porsche dealer is familiar with the
bodyseal treatment procedures and has the ne-
cessary equipment for applying factory approved
materials. We recommend that you entrust them
with such work and inspections.
Unlike conventional spray oils, undercoating and
rust-proofing compounds based on bitumen or
wax do not attack the sound-proofing materials
applied at the factory.
Warning!
Danger of fire resulting in serious personal
injury or death.
fDo not apply additional undercoating or rust-
proofing on or near the exhaust manifold,
exhaust pipes, catalytic converters or heat
shields. During driving the substance used for undercoating could overheat and ignite.fBefore applying fresh underseal, carefully re-
move deposits or dirt and grease. Once it has
dried, the new undercoating compound forms
a tough protective coating which provides effi-
cient rust-proofing of the floor panels and com-
ponents.
fAlways apply a fresh coating of suitable pre-
servative to unprotect areas after cleaning the
underside of the body, the transmission, the
engine or carrying out repairs to underbody,
engine or transmission components.
Effective rust-proofing is particularly important
during the cold weather season. If your car is
driven frequently in areas where salt has been
spread on the roads, the whole engine compart-
ment should be cleaned thoroughly after the
winter to prevent salt from causing any lasting
damage. A full under-body wash should also be
performed at the same time.
Cleaning headlights, lights, interior and
exterior plastic parts, adhesive filmsObserve the following points:
fUse only clean water and a little dishwashing
detergent or interior window cleaner to clean
headlights, lights, plastic parts, adhesive films
and surfaces.
Use a soft sponge or a soft, lint-free cloth.
Note
An interior window cleaner can also be used to
clean plastic surfaces (observe cleaning instruc-
tions on the container!).
We recommend the Porsche interior window
cleaner.
fGently wipe the surface without applying too
much pressure.
fDo not clean when dry.
fNever use other chemical cleaners or
solvents.
Rinse cleaned surfaces with clear water.
10_Cayenne_21_KW17.book Seite 275 Donnerstag, 9. April 2009 3:33 15

278
Maintenance and Car Care
Cleaning AlcantarafDo not use a leather care product to clean
Alcantara.
For regular care it is sufficient to clean the cover
with a soft brush. Heavy abrasion or rubbing when
cleaning causes a permanent change in the
surface.
Cleaning when lightly soiled
fWet a soft cloth with water or a neutral soap
solution and wipe off the dirt.
Cleaning when heavily soiled
fWet a soft cloth with lukewarm water or
thinned white spirit and dab the dirt from the
outside in.Cleaning safety beltsfUse mild detergent to clean soiled belts.
fWhen drying, avoid direct sunlight.
fOnly use suitable cleaning agents.
fDo not tint or bleach the belts.
The belt fabric could be weakened, thus affec-
ting safety.
Storing your PorscheIf you intend to store your Porsche for a prolonged
period, please consult your authorized Porsche
dealer. The staff will be glad to advise you on the
most suitable and necessary methods.
fClean your vehicle thoroughly inside and out-
side. Clean the engine compartment. The
under carriage and chassis components
should be free of dirt and salt deposits.
fFill up the fuel tank.
fChange the oil and oil filter, and run the engine
for several minutes.
fIncrease the tire pressure to 58 psi (4 bar). It
is not recommended to lift the vehicle, due to
the possibility of corrosion on shock absorber
piston shafts.The vehicle should be moved
slightly, approximately every four weeks, to
prevent flat spot on the tires.
Climate control
The air conditioning system should be in good
working condition and fully charged.
Windshield/Headlight washer
fCheck and correct antifreeze/cleaning solution
level as necessary.Electrical system
fRemove the battery from the vehicle and store
it in a cool dry place, not on a cement floor.
When the battery is disconnected, the alarm
system is deactivated.
fRecharge the battery every 3 months. If the
battery remains in the vehicle with the cables
connected, it is necessary to check, remove
and recharge the battery every 2-3 weeks.
Do not fast charge the battery.
fPlease see the chapter “CHARGE STATE” on
Page 320.
Vehicle interior
The interior must be dry, especially in the area of
the floor carpets. The use of drying agents (Silica-
Gel) is recommended in vehicles with leather inte-
rior and in areas with high humidity. The recom-
mended amount is 3 fabric bags of 1.1 lbs.
(500 grams) each placed on the floor carpets.
fWindows, doors, lids and roof must be closed.
The air vents should be opened.
10_Cayenne_21_KW17.book Seite 278 Donnerstag, 9. April 2009 3:33 15

280
Minor Repairs
Exercise Extreme Caution when
Working on your Vehicle
Danger!
Ignoring the following instructions may cau-
se 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
cautious of such devices such as hot water
heaters 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 you have to work on the engine while it is run-
ning, always put the parking brake on and put
the gearshift lever in neutral or the Tiptronic
selector lever in position P or N.fIn particular, be very careful to ensure that
items of clothing (ties, shirt, sleeves etc.),
jewelry, 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
engine off and exercise extreme caution.
fYour Porsche is equipped with an electronic
ignition system. When the ignition is on, high
voltage 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.
For vehicles with air suspension with level
control and height adjustment:
Please see the chapter “RAISING VEHICLE
WITH THE JACK” on Page 192.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 close at hand.
fIncomplete or improper servicing may cause
problems in the operation of the car. If in doubt
about any servicing, have it done by your
authorized Porsche dealer.
Improper maintenance during the warranty
period may affect your Porsche warranty
coverage.
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 in your vehi-
cle.
Please make enquiries before driving abroad.
10_Cayenne_21_KW17.book Seite 280 Donnerstag, 9. April 2009 3:33 15

Minor Repairs
295
Sequence of operation
Warning!
The jack must be used only to raise the car
for wheel changing.The jack must never be
used as a support to work underneath the
vehicle. If the jack is accidentally dislodged,
you or bystanders could suffer severe
personal injury.
fNever jack up other vehicles or other loads
with the jack.
fAlways place the car on stable supports if you
have to work under it. When working under the
vehicle, always use safety stands specifically designed for this purpose.
fPlease use a suitable knee rest to protect your
clothing against soiling.
Flat TireNote
The tools required for changing a wheel (e.g. jack,
wheel bolt wrench, assembly aids, folding
wedges) are only supplied with the vehicle if the
vehicle comes with a collapsible spare wheel or
full-size spare wheel as standard. Your authorized
Porsche dealer will be pleased to advise you.
1. Stop the vehicle as far away from the driving
lane as possible.
The car must be parked on a firm and flat
surface offering adequate grip.
2. Switch on the emergency flashers.
3. Fully apply the parking brake.
4. Shift into 1st gear or move the Tiptronic
selector lever to position P.
5. Straighten the front wheels.
6. Withdraw the ignition key to lock the steering
and prevent the engine from being started.
7. Have any passengers leave the vehicle.
8. Set up a warning triangle at a suitable
distance.
A-WedgesSecuring the vehicle against rollingFor this purpose, use the two folding wedges A
secured next to the tool box.
1. You can remove the wedges after undoing the
Velcro fastening.
10_Cayenne_21_KW17.book Seite 295 Donnerstag, 9. April 2009 3:33 15

298
Minor Repairs 5. Screw filler hose B onto the filler bottle.
The filler bottle is now open.
6. Unscrew valve cap from tire valve F.
7. Remove valve insert E from the tire valve with
valve turner D.
Keep the valve insert in a clean and dry place.
8. Remove plug C of the filler hose B.
9. Push filler hose onto the tire valve.
10.Hold filler bottle higher than the level of the tire
valve and press it together forcefully until the
bottle is completely emptied into the tire.
11.Pull filler hose off the tire valve.
12.Twist the valve insert firmly into the tire valve
using the valve turner.
13.Inflate the tire.
Set the prescribed tire pressure.
Please see the chapter “TIRE PRESSURES,
COLD (68 °F/20 °C)” on Page 354.
14.Screw valve cap onto the tire valve.
15.Check the tire pressure after driving for around
10 minutes.
If the tire pressure is less than 22 psi (1.5 bar),
do not continue driving.
If a value of more than 22 psi (1.5 bar) is indi-
cated, correct the pressure to the prescribed
value.
16.Please consult your authorized Porsche
dealer.The settings for Tire Pressure Monitoring must be
update on the multi-purpose display after filling the
tire with sealant.
Please see the chapter “SETTING TIRE SEALANT/
SEALING SET” on Page 140.
Car care instruction
After drying, any sealant that emerges can be
peeled off like a film.
Warning!
Risk of accident, resulting in serious
personal injury or death.
fHave the tire replaced by a specialist work-
shop as soon as possible.
fAvoid hard acceleration and high cornering
speeds.
fDo not exceed maximum speed of 50 mph
(80 km/h).
fPlease always observe the safety and opera-
ting instructions, which can be found in the
separate operating instructions for the sealant and on the compressor.
Lifting the Vehicle with a Lifting
Platform or Garage liftfThe car must be raised only at the illustrated
jacking points.
Please see the chapter “LIFTING THE VEHICLE
WITH A LIFTING PLATFORM OR GARAGE LIFT”
on Page 298.
Please see the chapter “RAISING VEHICLE
WITH THE JACK” on Page 192.
fLifting at any other place may damage the
vehicle or may result in personal injury.
Caution!
Serious personal injury or death and/or
serious damage to the engine or the vehicle
may occur, if you lift the vehicle improperly.
fNever lift the vehicle at any other place than
the jacking points.
fNever lift the vehicle by the engine, transmis-
sion or axles.
fDo not damage any sensitive components in the vicinity of the jacking points.
10_Cayenne_21_KW17.book Seite 298 Donnerstag, 9. April 2009 3:33 15

Minor Repairs
307
Inflating tires on vehicles without air
suspension1. Please follow the operating instructions on the
compressor.
2. Screw filler hose of the compressor onto the
tire valve.
3. Remove cover A of the engine-compartment
cover.
Please see the chapter “CONNECTING
JUMPER CABLES” on Page 324.
+ = Positive terminal for emergency starting
with jumper cables
– = Grounding point for emergency starting
with jumper cables4. Connect clamps of the compressor to the
terminals for emergency starting with jumper
cables.
Always observe the following sequence:
– Open the cap of the positive terminal for emer-
gency starting with jumper cables (+).
– Connect positive lead (red) to the positive
terminal for emergency starting with jumper
cables (+).– Connect negative lead (black) to the negative
terminal for emergency starting with jumper
cables (
–).
Warning!
Danger of burning. The compressor filler
hose can become hot during the inflation
process.
fWear gloves.
5. Switch on compressor.
The required filling pressure will be reached
after a few minutes.
6. Switch off compressor.
7. Check filling pressure with pressure tester.
Then reduce tire pressure or add more air if
necessary. Recheck the filling pressure.
8. Unscrew filler hose of the compressor.Reducing filling pressure on vehicles
without air suspension1. Switch off compressor.
2. Open air bleed screw on the filling hose until
the correct filling pressure is achieved.
10_Cayenne_21_KW17.book Seite 307 Donnerstag, 9. April 2009 3:33 15

312
Minor Repairs
Electrical SystemIn order to avoid damage and faults in electrical or
electronic systems, electrical accessories should
be installed at your authorized Porsche dealer.
fUse only accessories authorized by Porsche.
Warning!
Risk of short circuit and fire, resulting in
serious personal injury or death.
Replacing fuses or relays with engine running
or the ignition on could cause electrical
shock.
fDisconnect the negative terminal on the
battery during all work on the electrical sys-tem.
RelaysRelays should be checked or changed only by an
authorized workshop.
SocketsThe assignment and number of sockets depend
on the respective vehicle equipment.
Electrical accessories can be connected to the
12 V sockets.Note on operation
The sockets and thus the connected electrical
accessories will function even if the ignition is
switched off or the ignition key is withdrawn.
If the engine is not running and the accessories
are switched on, the vehicle battery will be
discharged. Do not operate additional accesso-
ries for more than 5 minutes when engine is off.
10_Cayenne_21_KW17.book Seite 312 Donnerstag, 9. April 2009 3:33 15

Minor Repairs
313
Changing fusesIn order to prevent damage to the electrical
system due to short circuits and overloads, the
individual circuits are protected by fuses.
One fuse box is in the engine compartment. Two
additional fuse boxes are located in the outer ends
of the dashboard.
1. Switch off the consumer with the defective
fuse. Before replacing a fuse, switch off all
electrical consumers and remove the ignition
key.
2. Open the fuse-box lid.
3. Remove the corresponding fuse from its slot to
check it using the plastic gripper.
A blown fuse can be identified by the melted
metal strip.
4. Replace only with fuses with the same rated
current. We recommend using genuine
Porsche fuses for replacement.
Note
If a fuse blows repeatedly, please consult an
authorized Porsche dealer immediately, so that
the short circuit can be located and corrected.
fNever try to “repair“ fuses: you may cause
serious damage to other parts of the electrical
system.
Cover of engine-compartment fuse boxOpening fuse-box lid in engine compartment
1. Rotate the turn-locks 90° anti-clockwise with a
screwdriver and remove the cover.
Fuse plan and fuse box in engine compartment2. Rotate the turn-locks of the fuse-box lid
90° anti-clockwise with a screwdriver and
remove the lid.
10_Cayenne_21_KW17.book Seite 313 Donnerstag, 9. April 2009 3:33 15