Shifting Gear, Traction Systems
237
Driving systems for off-road drivingSpecially adapted driving programs or power-
transmission and running-gear control systems
are available for off-road driving:
– Off-road program Low Range
–Off-road PSM
–Off-road ABS
– Center differential lock
– Rear differential lock
fPlease observe the chapter “POWER-TRANS-
MISSION AND RUNNING-GEAR CONTROL SYS-
TEMS” on Page 227.Before driving offTires
fCheck tread depth and tire pressure.
fCheck for damage and remove any foreign ob-
jects (e.g. stones) from the tread.
fReplace missing valve caps.
Rims
fReplace dented or damaged rims before
driving off road.
After driving off roadOff-road driving places a greater burden on the ve-
hicle than does normal driving on roads.
We recommend inspecting the vehicle after off-
road driving. Potential damage poses an accident
risk and impairs driving comfort. Damage on the
car is recognised in good time if the car is
checked.
Warning!
Car damage poses an accident risk for the
vehicle occupants and other road users.
fIn cases of doubt, have your vehicle checked
by your authorized Porsche dealer.
fExamine tires for signs of damage such as
cuts, tears, bulges or foreign objects stuck in
the tread. Replace a damaged tire if neces-
sary.
fHave any damage to your vehicle repaired by an authorized Porsche dealer without delay.
Recommended procedure
fDeactivate Low Range.
fClean headlights and tail lights and check them
for signs of damage.
fClean the front and rear license plates.fClean the tire tread with a jet of water and re-
move any foreign objects.
fClean wheels, wheel housings and the under-
body with a jet of water.
fCheck whether the car has picked up plant
parts or branches.
These materials increase the risk of fire and
can damage fuel lines, brake hoses, boots of
the axle joints and drive shafts.
fAfter off-road driving, always check the entire
floor assembly, tires, body structure, steering
system, running gear and exhaust system for
signs of damage.
fAfter driving for an extended period through
mud, sand, water or substances with a similar
soiling effect, check the brake discs, brake
pads, wheels and axle joints and have them
cleaned.
fIf you experience severe vibrations after
driving off road, check the wheels for foreign
substances.
These substances can produce an imbalance
which might be responsible for the vibrations.
Removing these deposits may remedy the
problem.
Maintenance, Car Care
249 Maintenance, Car Care
Exercise Extreme Caution when Working on your
Vehicle ...................................................... 250
Engine Oil Level ......................................... 252
Engine Oil Recommendation ........................ 254
Coolant Level ............................................. 256
Brake-Fluid Level ........................................ 258
Washer Fluid .............................................. 259
Power Steering .......................................... 260
Air Cleaner ................................................ 261
Particle Filter ............................................. 261
Automatic Transmission Fluid ...................... 261
Wiper Blades ............................................. 262
Fuel Economy ............................................ 265
Operating Your Porsche in other Countries ... 265
Fuel........................................................... 266
Fuel Recommendations............................... 269
Portable Fuel Containers ............................. 270
Fuel Evaporation Control ............................. 270
Emission Control System ............................ 271
Car Care Instructions.................................. 273
260
Maintenance, Car Care
Power Steering
Warning!
Risk of accident. When the engine is station-
ary (e.g. when on tow) or the hydraulic sys-
tem fails, there is no assistance for steering.
Therefore, substantially more force will have
to be exerted.
fExercise great care when on tow.
fHave the fault remedied at your nearest author-ized Porsche dealer.The flow noise heard at full steering lock is design-
related and does not indicate a defect in the steer-
ing system.
Checking hydraulic fluidfPlease observe the chapter “EXERCISE
EXTREME CAUTION WHEN WORKING ON YOUR
VEHICLE” on Page 250.
fOnly use genuine Porsche hydraulic fluid or a
hydraulic fluid of similar quality which has been
approved according the Porsche specifica-
tions and product requirements.
fCheck the fluid level with the engine stopped
and cold (engine temperature approx. 68° F or
20°C).
1. Remove cover A.
2. Open the reservoir cap.
3. The fluid level should lie between the MIN and
MAX marks on the dipstick.
Add hydraulic fluid if necessary.
4. Close cap carefully.
5. Put on cover A.
6. Close engine compartment lid.
fIf the fluid level drops significantly, please have
the cause remedied immediately by an author-
ized Porsche dealer.
Further important information concerning “mainte-
nance” can be found in a separate chapter.
fPlease observe the chapter “EXERCISE
EXTREME CAUTION WHEN WORKING ON YOUR
VEHICLE” on Page 250.
Practical Tips, Minor Repairs
327
45
Electrical seat adjustment, left; seat heating, rear
30
46
47
Transfer box
10
48
49
Servotronic, disengageable anti-roll bars
5
50 Heating pipe ventilation10
51
Diagnosis, parking brake switch, Air conditioning
5
52 Rear wiper30
53
Vehicle electrical system control unit, central locking system, power windows, mirrors, light switch, steering column
5
54 Headlight beam adjustment10
5556 Fan, front air-conditioning system4057
Fan, rear air-conditioning system
40
RES 1 Spare fuse 1
RES 2
Spare fuse 2
No. Designation Rating in A
Practical Tips, Minor Repairs
333
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 “TIRE PRESSURE
MONITORING LEARNING PROCESS” on
Page 102.
Practical Tips, Minor Repairs
345
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 35.6. On vehicles with tire pressure monitoring:
Please observe the chapter “TIRE PRESSURE
MONITORING LEARNING PROCESS” on
Page 102.
Vehicle Identification, Technical Data
371
CapacitiesUse only fluids and fuels authorized by Porsche. Your authorized Porsche dealer will be pleased to advise you.
Your Porsche has been designed so that it is not necessary to mix any additives with oils or fuels.1 Depending on equipment levelEngine oil change quantity without oil filter
approx. 8.5 quarts (8.0 liters)
Engine oil change quantity with oil filter approx. 9.0 quarts (8.5 litres)
Reference indication is the level on the oil dipstick.
Please observe the chapter “ENGINE OIL LEVEL” on Page 252.
Coolant
1)
approx. 4.8 – 5.5 U.S. gallons (18 - 21 liters)
Automatic transmission with torque converter approx. 10.6 quarts (10.0 liters)
Tr a n s f e r b o x
approx. 0.9 quarts (0.85 liter)
Front-axle differential approx. 1.1 quarts (1.0 liter)
Rear-axle differential
approx. 1.5 quarts (1.4 liters)
Locking rear differential approx. 1.7 quarts (1.6 liters)
Fuel tank
approx. 26.4 U.S. gallons (100 liters),
including approx. 3 U.S. gallons (12 liters) reserve
Fuel quality The engine is designed to provide optimum performance and fuel consumption if unleaded premi-
um fuel with 98 RON/88 MON is used.
If unleaded premium fuels with octane numbers of at least 95 RON/85 MON are used, the engine's
“Electronic Oktane™ knock control“ automatically adapts the ignition timing.
Power steering
approx. 1.6 quarts (1.5 liters) Pentosin CHF 11 S
®
Brake fluid approx. 1.0 quart (0.95 liter)
Use only Original Porsche brake fluid.Window/headlight washer system
approx. 7.9 quarts (7.5 liters)
Index
379
Brake tests ................................................ 235
Brake wear
Warning light ........................................ 78
Brake-fluid level
Checking ............................................ 258
Brakes ................................................ 74
, 235
Fluid.......................................... 258, 371
Fluid warning light...................... 126, 259
Pads ............................................. 14, 79
Test stand .......................................... 235
Warning light ........................................ 75
Wear .................................................. 126
Bulbs
Changing............................................ 356
Chart ................................................. 347
CCapacities .................................................. 371
Car care..................................................... 273
Car Telephone ............................................ 185
Care ............................... 277
, 279
, 280
, 281
Cargo area ................................................. 197
Carpet ....................................................... 280
Catalytic converter...................................... 272
Cayenne Turbo with increased
performance ..................................... 366, 369
Center differential lock ................................ 224
Central locking system ......................... 24, 322
Button .................................................. 25
Button (rear) ......................................... 35
Central vents ..................................... 145, 151
Changing a wheel ....................................... 311
Changing wheels................................ 303, 310
Check engine ............................................... 88Checking hydraulic fluid (power steering) ......260
Child restraint anchorages .............................61
Child restraint systems ..................................55
Child seat bracket .........................................60
Child seats ...................................................60
Installing ...............................................60
Childproof locks
Rear doors ...........................................27
Cigarette lighter ..........................................182
Circulating-air mode...........................145
, 150
Circulating-air mode, automatic ...........145, 150
Cleaner
Air......................................................261
Particle...............................................261
Clock .........................................................114
Collapsible spare wheel
.............................105
, 232
, 313
, 339
, 368
Warning light.......................................124
Comfort function
Panorama roof system ........................169
Sliding/lifting roof................................164
Comfort lighting ..........................................162
Coming Home function .......................119, 162
Compass....................................................115
Compressor ......................................301, 316
Coolant
Checking ............................................256
Cooling system .............................................85
Engine coolant level warning ..................85
Temperature gauge...............................85
Warning ................................................85
Cornering light ............................................131
Crankcase ventilation..................................272
Crossing obstacles .....................................242
Cruise controlAccelerating....................................... 139
Decelerating ...................................... 139
Interrupting ........................................ 139
Speed limit ........................................ 138
Storing speed .................................... 138
Switching off ...................................... 140
Switching on ...................................... 138
Cupholder......................................... 188
, 192
Closing rear ....................................... 193
Opening front ..................................... 192
opening rear ...................................... 193
Removing insert front ......................... 192
DData bank .................................................. 364
Diagnostic Socket ........................................ 15
Dimensions ................................................ 374
Dimming .................................................... 162
Door lock
Deicing .............................................. 275
Door locking, automatic .............. 26
, 117
, 118
Door mirrors .............................. 67
, 162
, 210
Automatic anti-dazzle operation ............. 69
Driving with a trailer ............................ 210
Extending ............................................ 67
Folding in ............................................. 67
Heating................................................ 68
Setting ................................................ 67
Door opening
............. 20
, 21, 23, 24, 26, 27, 117
, 118
Door trim panel .......................................... 188
Lighting ............................................. 162
Door unlocking........................................... 118
Doors.......................................................... 27