2005 PORSCHE CAYENNE S key battery

320
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
321
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 31.
6. On vehicles with tire pressure monitoring sys-
tem:
Please observe the chapter “SYSTEM LEAR-
NING PHASE” on Page 89.
f f f

Practical Tips, Minor Repairs
323
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 331.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

Practical Tips, Minor Repairs
329
Removing battery
1. Withdraw the ignition key.
Remove the Porsche Entry & Drive control unit
from the ignition lock in vehicles that contain
this feature.
Please observe the chapter “REMOVING THE
CONTROL UNIT FROM THE IGNITION LOCK” on
Page 59.
2. Undo the 4 fastening nuts of the battery box.3. Open the 4 clamps of the battery-box cover.
4. Remove the battery-box cover.
Danger!
Danger of explosion and injury and risk of
short circuit and damage to the alternator
and electronic control units.
fDisconnect the negative cable first, and then the positive cable.
5. Disconnect the negative cable.
6. Disconnect the positive cable.7. Pull off vent hose G on the battery.
8. Undo fastening nut H of battery fastening
plate.
9. Remove battery fastening plate.
10.Lift battery out of the battery box using the
folding handles.

Practical Tips, Minor Repairs
333
Charging the batteryYour authorized Porsche dealer will be pleased to
advise you about a suitable charger.
1. Always observe the instructions of the charger
manufacturer.
2. When charging the battery, ensure adequate
ventilation.
3. Check the acid level of a low-maintenance bat-
tery.
4. Connect charger to the jump starting points.
Only plug into the mains and switch the charg-
er on when it has been correctly connected up.
5. After charging, disconnect the charger.
6. Check the acid level of a low-maintenance bat-
tery.
After charging the battery After the battery is connected or the completely
discharged battery is charged, the PSM warning
light lights up on the instrument panel and a mes-
sage 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 to the left
and to the right when vehicle is standing 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-pur-
pose 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 31.
6. On vehicles with tire pressure monitoring sys-
tem:
Please observe the chapter “SYSTEM LEAR-
NING PHASE” on Page 89.

334
Practical Tips, Minor Repairs
Replacing the remote control
batteryNote
fPlease dispose batteries in compliance with
any and all government regulations.
If the battery in the remote control becomes too
weak, a warning will appear on the multi-purpose
display in the instrument panel.
The battery should be changed if this should be
the case.Changing the battery
1. Carefully pry out the lid on the back of the key
housing with a small screwdriver.
2. Replace battery (observe polarity).
A replacement battery is available from your
authorized Porsche dealer.
3. Replace cover and press together firmly.

368
Index
IndexAABD ......................................... 217
,219
,221
ABS ......................................... 217
,220
,223
Off road ............................................. 224
Warning light ...................................... 223
After driving off road ................................... 228
Aftermarket Alarms ..................................... 173
Air cleaner.................................................. 254
Air conditioning
Central vents ............................. 134,140
Cover flap .......................................... 128
Disabling control panel (rear) ............... 137
Display ............................. 129
,132
,136
Footwell .................................... 134,140
Four zone ........................................... 136
Fresh-air intake ................................... 127
Mono function ..................................... 133
Rear.......................................... 137,141
REST mode ............................... 135,141
Sensors ............................................. 128
Setting air quantity ............ 130
,133
,139
Setting temperature ................... 133,138
Side vents ................................. 134,140
Two zone .................................. 129,132
Vents ................................................. 127
Windshield ................................. 134,140
Air quantity
Setting ............................. 130
,133
,139
Air suspension ................. 163
,179
,217
,236
Airbag ................................................. 49,273
Disposal ............................................... 51Function ............................................... 49
Unit ...................................................... 52
Warning light......................................... 50
Air-conditioned areas
Rear................................................... 141
Air-conditioning compressor....... 129
,135
,140
Alarm button................................................. 17
Alarm system . 21
,23,27,28,30,194
,310
Alcantara.................................................... 273
All-Season tires .................................. 358,359
All-Terrain tires ................................... 358,359
All-wheel drive ........................... 113
,217
,219
Anti-freeze content ...................................... 249
Anti-lock brake system .............. 217
,220
,223
Anti-roll bars
Disengageable .................................... 214
Armrest...................................................... 178
Ashtray
Front .................................................. 170
Rear................................................... 170
Assembly aid ..................................... 301,307
Assistance when driving downhill .................. 226
Audio
Tips ................................................... 172
AUTO button .................... 132
,133
,136
,138
AUTO-LOCK .................................................. 23
Automatic anti-dazzle operation...................... 58
Automatic brake differential ....... 217
,219
,221
Automatic circulating-air mode ............ 134,139
Automatic mode, air conditioning132
,133
,138
Automatic transmission fluid ........................ 254
BBattery ......................... 59
,62,78,174
,320
After charging ..................................... 333
Car key .............................................. 334
Care................................................... 320
Charge state....................................... 320
Charging ............................................ 333
Installing ............................................. 330
Putting vehicle into operation ...............321
Removing ........................................... 328
Removing/installing .................... 323,327
Replacing ........................................... 322
Warning light....................................... 111
Winter driving...................................... 321
Before driving off .................................12,228
Belts ............................................................ 42
Fastening ............................................. 44
Height adjustment ................................. 45
Opening ............................................... 44
Tensioner ............................................. 43
Warning light.................................. 43,48
Brake ...........................................................65
Booster ................................................ 67
Discs ................................................... 68
Pads .................................................... 68
Warning light......................................... 66
Brake fluid
Changing ............................................ 252
Brake light .................................................. 346
Brake tests................................................. 226
Brake wear

Index
369
Warning light ........................................ 68
Brake-fluid level
Checking ............................................ 251
Brakes ................................................ 64
,226
Fluid.......................................... 251,362
Fluid warning light ...................... 112,252
Pads ............................................. 14,69
Test stand .......................................... 226
Warning light ........................................ 65
Wear .................................................. 112
Bulbs
Changing............................................ 346
Chart ................................................. 335
CCapacities .................................................. 362
Car care..................................................... 265
Car key
Battery ............................................... 334
Car Telephone ............................................ 173
Care ................................................. 269
,271
cargo area ................................................. 186
Carpet ....................................................... 272
Catalytic converter...................................... 264
Center differential lock ................................ 213
Central locking system ......................... 21,310
Button .................................................. 22
Button (rear) .................................. 22,31
Unlocking vehicle doors ......................... 21
Central vents ..................................... 134
,140
Changing wheels................................ 294,301
Check engine ............................................... 79
Checking hydraulic fluid (power steering) ...... 253
Child restraint anchorages ............................. 46Child restraint systems ..................................47
Child seat bracket .........................................48
Child seats ...................................................48
Installing ...............................................48
Childproof locks
Rear doors ...........................................26
Cigarette lighter ..........................................171
Circulating-air mode ...........................134
,139
Circulating-air mode, automatic ...........134,139
Cleaner
Air......................................................254
Particle...............................................254
Clock ..................................................77,101
Closing mechanism, power ..........................183
Clutch ........................................................202
Collapsible spare wheel ............. 92
,110
,222
,
......................................302
,327
,358
,359
Comfort function
Sliding/lifting roof.......................153,158
Comfort lighting ..........................................151
Coming Home function .......................106,151
Compass....................................................102
Compressor ......................................293,304
Coolant
Checking ............................................249
Cooling system .............................................75
Engine coolant level warning ..................75
Temperature gauge...............................75
Warning ................................................75
Cornering light ...................................117,342
Crankcase ventilation ..................................264
Crossing obstacles .....................................234
Cruise control
Accelerating .......................................125
Decelerating .......................................125Interrupting ........................................ 125
Speed limit ........................................ 124
Storing speed .................................... 124
Switching off ...................................... 126
Switching on ...................................... 124
Cupholder.................................................. 180
Closing rear ....................................... 181
Opening front ..................................... 180
opening rear ...................................... 181
Removing insert front ......................... 180
DData bank .................................................. 354
Diagnostic Socket ........................................ 15
Dimensions ................................................ 365
Dimming .................................................... 151
Button ............................................... 149
Door lock
Deicing .............................................. 267
Door locking, automatic ....................... 23
,104
Door mirrors .............................. 56
,151
,198
Automatic anti-dazzle operation ............. 58
Driving with a trailer ............................ 198
Extending ............................................ 57
Folding in ............................................. 57
Heating................................................ 57
Setting ................................................ 57
Swivelling, automatic ............................ 57
Door opening .......... 19
,20,21,23,26,104
Emergency operation ........................... 18
Door trim panel
Lighting ............................................. 151
Doors.......................................................... 26
Door-surrounding lighting ............................ 151