Shifting Gear, Traction Systems
227
Driving on sandNote on operation
fActivate Low Range and engage differential
locks if necessary.
Tips on driving
Loose sand is an especially tricky surface for off-
road driving.
You can often become stuck in sand within
minutes if you do not drive correctly in such
situations.
fDrive at brisk pace and do not stop under any
circumstances. This will reduce the chance of
the car becoming bogged down.
fFollow existing tracks – provided that they
have not been covered by blown sand, are not
too deep and the car's ground clearance is
sufficient.
Please observe the chapter “GROUND CLEA-
RANCE” on Page 355.
fAvoid high engine speeds (may. 2,500 rpm).When driving on slopes with soft sand:
fUse the manual select mode M in addition to
the Low Range program.
If your vehicle becomes stuck nevertheless:
fDo not spin the wheels. Instead, use branches,
mats or similar items to provide adequate trac-
tion so that you can drive out of the critical ar-
ea.
Track rutsOther vehicles leave ruts in many off-road courses
or gravel roads.
fPlease observe the chapter “GROUND CLEA-
RANCE” on Page 355.
Caution!
Risk of damage to the vehicle floor when
driving through ruts that are too deep.
fAlways bear in mind the car's ground clear-
ance.
fDo not drive over ruts that are too deep.
Note on operation
fActivate Low Range and engage differential
locks if necessary.
Tips on driving
fIn cases of doubt, drive with one wheel on the
strip of grass.
fAvoid high engine speeds (max. 2,500 rpm).
fDrive slowly.
276
Practical Tips, Minor Repairs
Tire replacementsfUse only tire makes and types tested by
Porsche.
Only tires with the same manufacturer and
with the same specification code (e.g. “N0“,
“N1“...) should be mounted on the vehicle.
Tires should be replaced no less than on one axle
at the time. Only tires of the same make and type
must be used. Mixed tires are not permissible and
will affect vehicle performance, safety, and can
affect vehicle warranty.
Porsche dealers can recommend the most current
replacement tire options for your vehicle.
Initially, new tires do not have their full traction.
You should therefore drive at moderate speeds
during the first 60 - 120 miles (100 - 200 km).Tires should be replaced no less than on one axle
at the time. Only tires of the same make and type
must be used. Mixed tires are not permissible.
Initially, new tires do not have their full traction.
You should therefore drive at moderate speeds
during the first 60 - 120 miles (100 - 200 km).
If new tires are installed only on one axle, a notice-
able change in handling occurs due to the different
tread depth of the other tires. This happens espe-
cially if only rear tires are replaced. However, this
condition disappears as the new tires are broken
in.
fPlease adjust your driving style accordingly.
Installation of new tires should only be done by a
qualified tire technician.
Valves
fUse only plastic valve caps.
fThe rubber valves must be replaced whenever
the tires are changed.
fThe fitting and replacement specifications
must be observed for metal valves.
fOnly use Original Porsche metal valves.
Practical Tips, Minor Repairs
279
Snow tiresThe installation of Porsche approved winter tires is
recommended.
Use Porsche approved winter tires for grip on
snow and ice. For optimum performance, stud-
ding can be considered.
Check with your local Motor Vehicle Bureau for
possible restrictions.
Danger!
Risk of loss of control and damage to the
vehicle as well as serious personal injury or
death.
The standard tires profile and rubber mixture
are optimized for wet and dry driving condi-
tions, and may not prove favorable for snow
conditions.
fInstall winter tires before driving in such condi-tions.
Before mounting winter tires, consult with your
Porsche dealer. He has the technical information
necessary to advise you on wheel and tire compat-
ibility.
Snow tires should have the same load capacity as
original equipment tires and should be mounted on
all four wheels.
Winter tires with studs should be run at moderate
speeds when new in order to give the studs time
to settle.
Danger!
Risk of serious personal injury or death.
Driving the vehicle with low tire pressure
increases increases risk of a tire failure and
resulting loss of control. Furthermore, low
tire pressure increases rate of wear of the
affected tires and cause damage.
Tires with badly worn treads and studs are
very dangerous and could cause accidents
resulting in serious personal injuries or
death.
fMake sure they are replaced immediately.
fDo not exceed the winter tire speed rating.
Snow tires do not have the same degree of trac-
tion on dry, wet or snowfree roads as normal tires.
Furthermore, snow tires wear rapidly under these
conditions.
Winter tires do not fulfill their purpose if the tread
depth is less than 5/32 in. (4 mm).
Comply with all state and local laws govern-
ing snow tire and tread depth requirements.
Danger!
Risk of accident and serious personal injury
or death due to excessive speed.
fAlways check the maximum speed rating on
the tire sidewall on any tire on the vehicle.
fNever exceed the maximum speed rating of the tires.
Wheel change
fWhen wheels are removed, mark the direction
of rotation and position of each wheel.
Example: FR (front right), FL, RR and RL.
fAlways fit the wheels in accordance with the
markings.
360
Index Drinks holder ..................................... 172
,176
Closing rear........................................ 177
Opening front ..................................... 176
opening rear ....................................... 177
Removing insert front .......................... 176
Driving
Load .................................................. 193
Off road ............................................. 220
Sand .................................................. 227
Trailer ................................................ 195
Winter ................................................ 204
Driving downhill .......................................... 223
Driving light assistant
Light switch ........................................ 114
Driving light assistant, automatic.................. 115
Driving performance ................................... 353
Driving program
Low Range indicator light .................... 207
Off road .................. 201
,203
,206
,207
Reduced ............................................ 204
Road ................................ 200
,202
,207
Driving programme
Off road ............................................. 210
Road .................................................. 210
Driving systems for off-road driving .............. 221
Driving with a trailer .................. 160
,194
,352
Drop-center rim .......................................... 282
DVD Player ................................................. 177
EEasy Entry function ....................................... 35
ECON mode ...................................... 130
,135
Button ....................................... 127,131Electrical system ........................................ 302
Emergency operation
Door lock ............................................. 23
Doors................................................... 18
Ignition key ........................................... 18
Sliding/lifting roof................................ 149
Emergency starting ..................................... 323
Emergency unlocking
Filler flap ............................................ 251
Selector lever ..................................... 205
Spare wheel bracket ........................... 301
Emission control ................................. 5
,8,76
Check engine warning light .................... 76
Emission Control System ............................. 254
Engine
Boost pressure ..................................... 75
Cooling system ..................................... 73
Data................................................... 346
Idling .................................................. 199
Starting and stopping ............................ 60
Engine compartment
Cleaning ............................................. 260
Lid ..................................................... 180
Engine drag torque control .......................... 215
Engine Oil
Performance class .............................. 239
Viscosity............................................. 239
Engine oil ................................................... 235
Change .............................................. 238
Level .................................................. 236
Recommendation ................................ 238
Temperature gauge............................... 72
Topping up ......................................... 237Engine oil level ............................................236
Checking ............................................236
Warning ..............................................236
Engine residual heat ...........................130
,136
Entry aid.......................................................35
Switching on and off ..............................35
Exhaust gas
Monitoring ..............................................5
Exit aid .........................................................35
Switching on and off ..............................35
FFabric linings ..............................................264
Filler flap ....................................................250
Release ................................................15
Filling pressure..............................................85
Plate ..................................................345
Reducing ...................................296
,298
Tables ................................................350
Warning light ...........68
,70,87,97,108
Warning message..................................93
Fire extinguisher..........................................171
Floor mats ..................................................263
Fluids and fuels ...........................................351
Fog lights ...................................................114
Folding wedges...........................................287
Footbrake .....................................................63
Warning light .........................................64
Footwell light ..............................................146
Fresh-air intake ...........................................125
Front seat with memory ..........................33,34
Front seats ..........................................32
,172
Adjusting the seats ................................32
Seat position.........................................32
fusszeile-r
368
Porsche and the Environment .......................... 4
Never invite car theft! .................................... 16
Keys ............................................................ 17
Central Locking System ................................ 21
Porsche Entry & Drive ................................... 24
Doors .......................................................... 26
Alarm System, Ultrasound Passenger Compart-
ment Monitoring System, Inclination Sensor .... 27
Power Windows ............................................ 29
Front seats................................................... 32
Front seat with memory................................. 33
Easy Entry Function ...................................... 35
Headrests .................................................... 36
Rear Seats ................................................... 37
Heated Seats – Front and Rear ...................... 40
Safety Belts.................................................. 42
Child Restraint Anchorages ............................ 46
Child Restraint Systems ................................ 47
Airbag Systems ............................................ 49
Steering Wheel ............................................. 51
Multi-Functional Steering Wheel ...................... 53
Interior Mirror ............................................... 55
Door Mirrors................................................. 55
Automatic Anti-Dazzle Mirror .......................... 57
Ignition Lock/Steering Lock ........................... 58
Starting and Stopping the Engine ................... 60
Parking Brake ............................................... 62
Brakes ......................................................... 63
Instrument Panel USA Models ........................ 68
Instrument Panel Canada Models.................... 70
Oil Temperature Gauge ................................. 72
Speedometer ............................................... 72
Cooling System ............................................ 73
Fuel ............................................................. 74Odometer..................................................... 75
Emission Control........................................... 76
Multi-Purpose Display .................................... 78
Warning Lights and Warning Messages ......... 106
Light Switch ............................................... 114
Instrument Illumination ................................. 116
Automatic Headlight Beam Adjustment ......... 116
Turn signal/High Beam/Headlight Flasher Stalk ...
117
Emergency warning lights............................ 118
Windshield Wiper/Washer Stalk .................... 119
Cruise Control ............................................ 122
Vents ......................................................... 125
Fresh-air intake ........................................... 125
Heated Rear Window ................................... 126
Automatically Controlled Two-Zone Air Condi-
tioning ....................................................... 127
Automatically Controlled Four-Zone Air Condi-
tioning ....................................................... 131
Parking Heater............................................ 137
Sun Visors .................................................. 142
Sun Blinds, Rear Side Windows .................... 143
Interior Lighting .......................................... 144
Door-Surrounding Lighting ........................... 146
Coming Home Function (Off Delay) ............... 146
Sliding/Lifting Roof ..................................... 147
Parking Aids ............................................... 157
Garage Door Opener ................................... 162
Ashtray ...................................................... 165
Cigarette Lighter......................................... 166
Car Audio Operation/Tips ............................ 167
Porsche Communication Management (PCM). 170Fire Extinguisher ......................................... 171
Storage...................................................... 172
Cupholder .................................................. 176
Rear Lid ..................................................... 178
Rear Window .............................................. 180
Engine Compartment Lid ............................. 180
Loadspace ................................................. 182
Luggage Compartment Cover ...................... 183
Luggage Safety Net ....................................185
Ski Bag ...................................................... 187
Roof Transport System................................ 189
Trailer Coupling .......................................... 190
Loading Information ....................................191
Tiptronic S ................................................. 198
Selector Lever Positions .............................. 199
Driving Programs for On-Road and Off-Road Dri-
ving ........................................................... 206
Power-Transmission and Running-Gear Control Sy-
stems ........................................................ 211
Off-Road Driving .......................................... 220
Air Suspension with Level Control and Height Adju-
stment ....................................................... 228
Porsche Active Suspension Management (PASM) .
231
Exercise Extreme Caution when Working on your
Vehicle ....................................................... 234
Engine Oil Level .......................................... 236
Engine Oil Recommendation......................... 238
Coolant Level.............................................. 240
Brake-Fluid Level ......................................... 242
Washer Fluid ............................................... 243
Power Steering ........................................... 244