
280
Practical Tips, Minor Repairs
Tire pressures
Danger!
Risk of accident.
Risk of serious personal injury or death.
Driving the vehicle with low tire pressure
increases risk of a tire failure and resulting
loss of control. Furthermore, low tire pres-
sure increases rate of wear of the affected
tires and cause damage. Always use an
accurate tire pressure gauge when checking
inflation pressures.
fDo not exceed the maximum tire pressure
listed on the tire sidewall. (Also refer to “Tech-
nical data“).
fCold tire inflation pressure means: all tires
must be cold, ambient temperature maximum
68°F (20°C), when adjusting the inflation pres-
sure. Avoid sunlight striking the tires before
measuring cold pressures, since the pressures
would rise from temperature influence.
fValve caps protect the valve from dust and dirt,
and thus from leakage. Always screw caps
tightly down. Replace missing caps immedi-
ately.
fFor safety reasons, don't use tire inflating bot-tles.The tire pressure must match the prescribed
value.
You can find information on the tire pressure:
– In the front left door aperture.
– Please observe the chapter “TIRE
PRESSURES, COLD” on Page 361.
These values are for cold tires (68°F/20 °C).
fCheck the tire pressure at least every
2 weeks. Always check when tires are cold.
fOn vehicles with tire pressure monitoring
system:
Please observe the chapter “TIRE PRESSURE
MENU” on Page 89.
When tires are warm, the tire pressure is
increased.
fNever let air out of hot tires. This could cause
the tire pressure to fall below the prescribed
value.
Insufficient tire pressure can cause tires to
overheat and thus be damaged – even invisibly.
Hidden tire damage is not eliminated by subse-
quently correcting the tire pressure.Overloading
Danger!
Risk of personal injury, loss of control and
damage to vehicle parts.
fDo not overload your vehicle. Be careful about
the roof load.
fIf loading the vehicle also correct the tire pres-
sure. Tire pressure for loaded vehicle can be
found on the tire pressure plate and in the
chapter technical data.
fNever exceed the specified axle load.
Overloading can shorten the service life of the
tires and car, as well as lead to dangerous vehi-
cle reactions and long braking distances.
Damage due to overloading is not covered by the vehicle warranty.
fPlease observe the chapter “LOADING INFOR-
MATION” on Page 195.
fPlease observe the chapter “TIRE PRES-
SURES, COLD” on Page 361.

322
Practical Tips, Minor Repairs
Replacing the batteryThe service life of the battery is subject to normal
wear; it depends greatly on care, climatic condi-
tions, and driving conditions (distances, loads).
fOnly use an original Porsche battery, with the
correct part number, as a replacement. Only
this battery meets the specific requirements of
the vehicle.
fPlease observe the disposal instructions for
batteries.
Battery chargingAutomotive batteries loose their efficiency when
not in use. The charge available in your battery can
be measured with a battery hydrometer. We rec-
ommend that the battery voltage be tested by
your Porsche dealer who has the appropriate
equipment.
If the car is not driven for prolonged periods, the
battery must be charged at least every 6 weeks.
A discharged battery allows rapid formation of sul-
fates, leading to premature deterioration of the
plates.
Danger!
Hydrogen gas generated by the battery
could cause an explosion, resulting in severe
personal injuries.
fCharge battery in a well ventilated area.
fNever charge a frozen battery. It may explode
because of gas trapped in the ice. Allow a fro-
zen battery to thaw out first.
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.
Note
Your authorized Porsche dealer will be pleased to
advise you about a suitable charger.Slow battery charging
1. Pay attention to all warnings and follow instruc-
tions that come with your battery charger.
2. When charging, ensure adequate ventilation.
3. Remove battery.
Please observe the chapter “REMOVING AND
INSTALLING BATTERY” on Page 323.
4. All vent caps should be open.The fluid level
should meet the indicator mark in each cell.
5. Ensure that charger is switched off – danger of
short circuit!
6. Connect charger cables.Charger cables must
be connected POSITIVE (+) to POSITIVE (+)
and NEGATIVE (–) to NEGATIVE (–).
7. Switch on charger. Normally, a battery should
be charged at no more than 10 percent of its
rated capacity. Rated capacity of the battery in
your vehicle is listed on the battery housing.
8. After charging, turn off charger and disconnect
charger cables.
9. Tighten the vent caps and reinstall battery.
Please observe the chapter “REMOVING AND
INSTALLING BATTERY” on Page 323.

Index
375
Storage, automatic ............................... 34
Storing driver’s seat settings ................. 34
Storing parking aid ................................ 34
Storing passenger seat settings............. 34
Seat memory (comfort) ................................. 33
Seat with memory ....................................... 166
Seats
Front .................................................... 32
Position ................................................ 32
Rear..................................................... 37
Setting ................................................. 32
Security wheel bolts .................................... 293
Selection mode
Automatic........................................... 205
Manual ............................................... 207
Selector lever ............................................. 203
Selector lever lock ...................................... 210
Selector lever position ................................ 204
Display ............................................... 203
Service indicator......................................... 112
Shifting
Down ................................................. 207
On the steering wheel.......................... 205
Up ..................................................... 207
Shifting gears ............................................. 202
Shifting up.................................................. 208
Shock absorber adjustment ......................... 217
Shock absorbers ........................................ 217
Side lights .................................................. 116
Side marker light ........................................ 151
Side vents ......................................... 134
,140
Ski bag ...................................................... 191
Sliding roof................................................. 152
Closing............................................... 153Lifting.................................................153
Opening completely .............................153
Opening to comfort setting ..................153
Readiness for operation .......................152
Sliding/lifting roof .......................................152
Closing ...............................................153
Lifting.................................................153
Opening completely .............................153
Opening to comfort setting ..................153
Readiness for operation .......................152
Snow chains ......................................288
,360
Snow tires ..................................................286
Socket .......................................................310
Spare parts ................................................354
Spare wheel ......91
,92,302
,307
,327
,358
Warning light.......................................110
Spare wheel bracket ..........................182,308
Locking ................................................24
Opening ...............................................24
Unlocking .............................................20
Special low level .........................................236
Special terrain level .....................................236
Speed code letter .......................................289
Speed limit ..........................................91,289
Speedometer
Cayenne S .....................................70,72
SportDesign package ......................................7
Stability Management System .............220
,222
Indicator light ......................................112
Off road..............................................221
Warning light.........................70
,72,112
Stability management system.......................217
Starting ......................................................203
Starting and stopping ....................................61Steam-jet units ........................................... 163
Steering lock ............................................... 59
Steering wheel ............................................. 52
Adjusting ............................................. 53
Heating................................................ 52
Multi-functional steering wheel ............... 54
Shifting .............................................. 206
Steering wheel buttons ................................. 54
Lighting ............................................... 55
Stopping ................................................... 209
Storage .............................................. 16
,176
Storage compartment ................................ 176
in the luggage compartment ............... 179
Storage tray
Armrest, front .................................... 178
Armrest, rear ..................................... 178
Stowing luggage ............................... 197,198
Subwoofer
Installing ............................................ 328
Removing .......................................... 328
Summer tires ............................................. 358
Sun blind ................................................... 148
Sun visors ................................................. 147
TTachometer ................................... 70
,72,74
Tail light ..................................................... 345
Tank opening ............................................. 259
Telephone .................................................. 173
Temperature
Sensor ..................................... 132
,136
Setting ..................................... 133,138
Temporary change-down ............................. 205
Terrain level ............................................... 236