ignition PORSCHE CAYNNE S 2006 1.G Owners Manual

296
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 you have to work on the engine while it is run-
ning, always put the handbrake on and put the
gearshift lever in neutral or the selector lever
in position P.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
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 con-
trol and height adjustment:
Please observe the chapter “AIR SUSPENSION
WITH LEVEL CONTROL AND HEIGHT ADJUST-
MENT” on Page 254.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
authorized Porsche dealer.
Improper maintenance during the warranty
period may affect your Porsche warranty cov-
erage.
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.
Notes on Minor RepairsTool kitThe tool kit is accommodated in the spare-wheel
well under the cover of the loadspace floor.

316
Practical Tips, Minor Repairs
Flat Tire1. 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 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-Folding wedgesSecuring the vehicle against rollingFor this purpose, use the two folding wedges A
fastened on the tool box.
1. Unfold the wedges.
2. Engage the wedges.3. Place one wedge directly in front of and
another directly behind the diagonally opposite
wheel.

330
Practical Tips, Minor Repairs
B- Screw coupling for compressor connection
C- Pressure tester
D- Hand valve for tire filling
E- Air bleed screw
F- Filler connection for tire valve7. Screw screw coupling B into the compressor
connection (in footwell of the front passenger
seat).
8. Screw filler connection F onto the tire valve.
Warning!
Danger of injury and risk of damage if the
operating unit is used improperly.
fUse this operating unit only to inflate or to bleed air from the tires of this vehicle.
9. Switch ignition on.
10.Press hand valve D until the correct tire pres-
sure is achieved.
Monitor the tire pressure with pressure tester
C during the inflation process.
11.Unscrew the screw coupling from the com-
pressor connection.
12.Unscrew filler connection from the tire valve.
13.Stow tire filler hose in the bag.Note on operation
The compressor features a protective function
against overheating and switches itself off auto-
matically if necessary. The compressor must cool
down for a few minutes after automatic deactiva-
tion.
Reducing tire pressure on vehicles with
air suspensionfOpen air bleed screw E until the correct tire
pressure is achieved.
Monitor the tire pressure with pressure tester
C while correcting the tire pressure.

334
Practical Tips, 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.
Replacing fuses or relays with engine running
or the ignition on could cause electrical
shock.
fDisconnect the battery during all work on the electrical system.
RelaysRelays should be checked or changed only by an
authorized workshop.Alarm system, central lockingThe status of the central locking and alarm system
is not changed by disconnecting the battery.
When the battery is disconnected, the alarm
system ceases to function.
SocketsElectrical accessories can be connected to the
12 V sockets.Note on operation
The sockets and thus the connected electrical ac-
cessories function even if the ignition is swi tched
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.

Practical Tips, Minor Repairs
335
Changing fusesIn order to prevent damage to the electrical
system due to short circuits and overloads, the in-
dividual 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 of the same rating.
Note
If a fuse blows repeatedly, please consult an au-
thorized Porsche dealer immediately, so that the
short circuit can be located and corrected.
Never 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 box in engine compartment2. Rotate the turn-locks of the fuse-box lid
90° anti-clockwise with a screwdriver and re-
move the lid.
f f f

338
Practical Tips, Minor Repairs 22 Rear differential lock, transfer box30
23
Rear differential lock, disengageable anti-roll bars
10
24 Tire pressure monitoring5
2526 Engine control unit (engine management, radiator fans), airbag, instrument panel 1027282930313233
Steering column
15
34 Passenger compartment monitoring, inclination sensor5
35
Low beam left, high beam left, vehicle electrical system control unit
15
36 Vehicle electrical system control unit10
373839
Heated rear window
5
40 Instrument panel, diagnosis5
41
Steering column lock, ignition lock, central locking system, Porsche Entry & Drive
15
42 Sliding/lifting roof or Panorama roof30
43
Subwoofer
30
44 Electrical seat adjustment, left; electrical steering column adjustment 30 No. Designation Rating in A

Practical Tips, Minor Repairs
343
Fuse assignment – fuse box in engine compartmentNote
fUse 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 pump (Cayenne S)40
567
Fuel injectors, ignition coils
20
8 Fuel injectors, ignition coils20
9
Engine control module, camshaft adjusters, intake pipe switchover (Cayenne)
30
10Engine components: cooling air fan, carbon canister shut-off valve, pressure sensor for air conditioning, tank leakage detection,
run-on pump (Cayenne S), carbon canister shut-off valve valve (Cayenne)10
11
Engine existing wiring, secondary air pump (Cayenne), air-conditioning compressor (Cayenne), oil-level sensor (Cayenne)
15
12 Secondary air pumps, run-on pumps5
13
Fuel pump, right
15
14 Fuel pump, left15
15
Engine control module, main relay
10
16 Water run-on pump (Cayenne)30
17
Oxygen sensors ahead of catalytic converter
15
18 Oxygen sensors behind catalytic converter7.5

344
Practical Tips, Minor Repairs
Battery
Danger!
Risk of short circuit and fire.
fObserve all warning notes on the battery.
fDisconnect the battery during all work on the
electrical system.
fDo not lay tools or other metal objects on the
battery as they could cause a short circuit
across the battery terminal.
Hydrogen gas generated by the battery
could cause an explosion, resulting in severe
personal injuries.
fDo not expose the battery to an open flame,
electrical spark or a lit cigarette.
Risk of explosion
fDo not wipe the battery with a dry cloth.
fBefore touching the battery, discharge any
static electricity by touching the vehicle.
Risk of severe personal injury and damage to
the fabric, metal or paint.
fWear eye protection.
fDo not allow battery acid to come in contact
with your skin, eyes, fabric or painted surfac-
es.fIf you get electrolyte, which is an acid, in your
eyes or on your skin, immediately rinse with
cold water for several minutes and call a doc-
tor.
fSpilled electrolyte must be rinsed off at once
with a solution of baking soda and water to
neutralize the acid.
Battery posts, terminals and related acces-
sories contain lead and lead compounds,
chemicals known to the State of California to
cause cancer and reproductive harm.
fAlways protect your skin by washing thorough-
ly with soap and water.
Charge stateA well charged battery will not only prevent start-
ing problems but will also last longer.
In order to avoid unintended battery
discharge
fSwitch off unnecessary electrical loads in city
traffic, on short trips or in a line of traffic.
fAlways remove the ignition key from the igni-
tion switch when leaving the vehicle or
switch ignition off in vehicles with Porsche En-
try & Drive.
fAvoid using the Porsche Communication
Management system and the audio system
when the engine is not running.
Battery carefEnsure that battery is securely mounted.
fKeep terminals and connections clean and
properly tightened. Corrosion can be prevent-
ed by coating the terminals and connections
with petroleum jelly or silicone spray.
fEnsure that vent caps are securely tightened to
prevent spillage.
Checking the electrolyte fluid level
(only on low-maintenance batteries)
Generally, the electrolyte level must be checked
more often in summer than in the winter, and more
often when driving long distances.
fWhen adding water, use only clean containers.
In no case may alcohol (e.g. window cleaner
residues) be permitted to enter the battery.
fUnscrew and open the filler vent caps of each
cell.
With the car on a level surface, the fluid level
should meet the indicator mark in each cell.
fIf necessary, top up with distilled water. Do not
use acid. Only fill up to the mark, otherwise the
electrolyte will overflow when the battery is be-
ing charged and cause damage.

Practical Tips, Minor Repairs
345
Winter operationDuring the winter months, battery capacity tends
to decrease as temperatures drop. Additionally,
more power is consumed while starting, and the
headlights, heater, rear window defogger, etc.,
are used more frequently.
Let your Porsche dealer test the battery's capaci-
ty before winter sets in.Vehicle storageIf the car stands for long periods in the garage or
workshop, the doors and lids should be closed.
fRemove the ignition key and, if necessary, dis-
connect the battery.
Notes on operation
fWhen the battery is disconnected, the alarm
system ceases to function.
If the vehicle was locked before the battery
was disconnected, the alarm will be triggered
when the battery is reconnected.
To deactivate the alarm system:
fLock the vehicle and unlock it again.Maintenance note
Even if you put your vehicle out of operation, the
battery still discharges.
The battery will discharge more quickly if your ve-
hicle is not driven on a daily basis over a distance
of several miles. The more often you drive your ve-
hicle, and the longer the distance driven on each
trip, the more opportunity the vehicle‘s charging
system will have to recharge the batteries.
fTo preserve its efficiency, charge the battery
about every 6 weeks.
fCheck the battery acid level and top off with
distilled water if necessary.
fStore a battery that has been removed in a
dark, cool place, but not subject to freezing.
Putting vehicle into operationAfter the battery is connected or charged, the
PSM warning light lights up on the instrument pan-
el and a message appears on the multi-purpose
display of the instrument panel to indicate a fault.
This fault can be remedied with a few simple
steps:
1. Start the engine.
To do this, turn the ignition key or the control
unit (on vehicles that have Porsche Entry &
Drive) to ignition lock position 2 twice.2. Perform a few steering movements and drive
a short distance in a straight line until the PSM
warning light goes out and the message is
erased from the memory of the multi-purpose
display of the instrument panel.
3. If the warnings does not go out, then:
Drive carefully to the nearest authorized
Porsche dealer.
Have the fault remedied by an authorized
Porsche dealer.
4. After the warnings disappear:
Stop the vehicle in a suitable place.
5. Perform adaptation of the power windows:
Please observe the chapter “STORING FINAL
POSITION OF THE DOOR WINDOWS” on
Page 35.
6. On vehicles with tire pressure monitoring:
Please observe the chapter “SYSTEM LEAR-
NING PHASE” on Page 104.
f f f

Practical Tips, Minor Repairs
347
Removing and installing battery
Danger!
Danger of explosion and injury and risk of
short circuit and damage to the alternator
and electronic control units.
fHave the battery removed and installed only by
a qualified professional.
fDo not disconnect battery while the engine is
running.
fDisconnect and connect the battery only with
the greatest care. Danger of short circuit and
explosion.
fDo not tilt the battery when removing it.Risk of caustic burns from escaping acid.
The battery is located in the battery box under the
left front seat.
If the battery is completely discharged, the vehicle
must be provided with external power at the jump-
lead starting points so that you can move the seat.
fPlease observe the chapter “EMERGENCY
STARTING WITH JUMPER CABLES” on
Page 355.Maintenance note
The seat mounting bolts must be replaced each
time they are loosened.
The bolts are micro-encapuslated and keep dust
and water out.
If this is not observed, it might not be possible to
attain the prescribed tightening torque of 37 ftlb
(50 Nm).
Removing battery
1. Switch off all electrical loads and withdraw the
ignition key.
2. Move the left front seat all the way back and
up.
Move the backrest fully upright.
3. Unclip front seat trim A.
f f f