2004 PORSCHE CAYENNE wheel alignment

Minor Repairs
285
Tire lifeTire life depends on various factors, i.e., road sur-
faces, traffic and weather conditions, driving
habits, type of tires and tire care.
fInspect your tires for wear and damage before
driving off. If you notice uneven or substantial
wear, wheels might need alignment or tires
should be balanced or replaced.Tire wearThe original equipment tires on your Porsche have
built-in tire wear indicators. They are molded into
the bottom of the tread grooves and will appear as
approximately 1/2 in. (12 mm) bands when the
tire tread depth is down to 1/16 of an in (1.6 mm).
When the indicators appear in two or more adja-
cent grooves, it is time to replace the tires. We
recommend, however, that you do not let the tires
wear down to this extent.
Worn tires cannot grip the road surface properly
and are even less effective on wet roads.
In the United States, state laws may govern the
minimum tread depth permissible. Follow all such
laws.
Danger!
Driving on worn tires can result in loss of con-
trol of the vehicle and could cause serious
personal injuries or death.
fDo not drive with worn tires or tires showing
cuts or bruises as they may lead to sudden
deflation and loss of control which could cause
severe personal injury.
fSpecialized high performance tires on high
performance sport utility vehicles exhibit more
wear than those on a family sedan, or even a
high performance sedan.
Therefore, it is important to check your tire
pressure and condition at least every two weeks.
fIf you notice that tires are wearing unevenly,
consult your Porsche dealer.
Uneven wear may not always be due to improper
wheel alignment. It can be the result of individual
driving habits such as cornering at high speeds. If
the tire pressure is not checked and adjusted
regularly, abnormal tire wear can also occur.
Tire carefAvoid damaging tires and wheel rims.
fIf you must drive over a curb or other obstacle,
drive slowly and at an obtuse angle.
fCheck tires for uneven wear and damage
before driving off.
fRemove imbedded material.
fReplace worn or damaged tires immediately.
fKeep oil, fuel, brake fluid, etc. away from tires.
fReplace missing valve stem caps.
fKeep tires inflated correctly.
fWash tires when washing the vehicle. Also
clean inner side of wheels.
fDo not use abrasive cleaners when washing
the wheels.
fCheck wheel rims for corrosion.
fRemove road salt, if driving in winter.
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Minor Repairs
287
Parking at the curb
Danger!
Hard impacts against curbs (or traffic
islands) are dangerous and may cause hid-
den tire damage which is not noticeable until
later. Such damage can result in accidents at
high speeds causing serious personal injury
or death. Depending on the force of impact,
the edge of the rim can also be damaged.
fIf you are in doubt, have the wheel checked by
an expert, particularly if you suspect damage
on the inside.
fIf you must drive over a curb or other obstacle,
drive slowly and at an obtuse angle. Exercise care when parking along curbs.
Maintenance Note
Tire repairs are not permissible under any circum-
stances.
Wheel alignment, wheel balancingAs a precaution, have wheels with summer tires
balanced in the spring, and those with mud and
snow tires before winter. Unbalanced wheels may
affect car handling and tire life.
Only the specified weights may be used for wheel
balancing. Self-adhesive weights must not come into contact
with cleaning agents, since they could drop off.
Uneven tread wear indicates wheel imbalance. In
this event, the vehicle should be checked at an
authorized Porsche dealer.
Danger!
If, during a trip, uneven running or vibrations
occur that could be caused by damage to
tires or the car, the speed must be reduced
immediately, but without braking sharply. If
you continue your trip without having the
cause of the fault remedied, you might lose
control of your vehicle which could cause
serious personal injury or death.
fStop the vehicle and check the tires.
fIf no cause for the fault can be found, drive ca-
refully to the nearest authorized Porsche dea-ler.
Wheels with Tire Pressure Monitoring
(TPM) sensorsBefore changing wheels, make sure that the
wheels are compatible with your vehicle’s TPM.
fCheck this with your authorized Porsche dea-
ler.
Removing and storing tiresfAfter changing, adjust tire pressure and torque
wheel bolts diagonally.
Please see the chapter “CHANGING WHEELS”
on Page 294.
fStore tires in a cool and dry place. Rotate peri-
odically to avoid flat spots.
fAvoid contact with petrol, oil and grease.
Tires must always remain on the same side of
the vehicle.
When wheels are removed, the direction of
rotation and position of each wheel should be
marked.
Example
FR (front right), FL, RR and RL.
Wheels must always be fitted in accordance with
their marking.
The perception that tire durability and perfor-
mance are not affected by storage and age is
unfounded.
Chemical additives, which make the rubber elas-
tic, lose their effectiveness over the course of
time and the rubber becomes brittle and cracks.
Therefore, the tires, especially the spare tire,
should be inspected from time to time.
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378
Index
Turn signal light
Changing bulb
(Cayenne, Cayenne S, Cayenne S Transsyberia)
.. 333
Indicator light
....................................... 117
, 119
Turn signal pilot light
Indicator light
....................................... 117
, 119
Turn signal, front
Changing bulb (Cayenne GTS)
.......................... 335
Changing bulb
(Cayenne, Cayenne S, Cayenne S Transsyberia)
.. 333
Installing headlights
........................................ 328
Removing headlights
...................................... 327
Turn signal, rear
Changing bulb
............................................... 338
Installing tail light
........................................... 337
Removing tail light
......................................... 336
Turn signal/high beam/headlight flasher stalk
.............. 106
Two-zone air conditioning
Air-conditioning sensors
.................................... 71
Defrosting windshield
....................................... 70
Operating overview
.......................................... 70
REST mode
.................................................... 65
Setting air distribution
...................................... 72
Setting air quantity
........................................... 71
Setting temperature
......................................... 71
Switching ECON mode on/off
............................ 65
Switching Mono function on/off
.......................... 72
Switching on automatic recirculating-air mode
...... 72
Switching on recirculating-air mode
..................... 72
Using engine residual heat
................................ 65
UUltrasonic measurement
.......................................... 240
Ultrasound sensors, ParkAssist
................................. 238
Ultrasound sources
................................................. 240
Undercoating (care instructions)
................................ 274
Universal audio interface, installation position
.............. 221
Unlocking
Opening vehicle door from inside
........................ 28
Rear lid
.......................................................... 22
Rear window
................................................... 27
Unlocking and opening rear lid
........................... 22
Unlocking and opening the rear window
............... 27
Unlocking vehicle door with Porsche Entry & Drive
(keyless)
........................................................ 20
Unlocking vehicle door with the car key
(remote control)
.............................................. 20
Uphill driving
Off-road
....................................................... 197
Traction
....................................................... 198
USB interface, installation position
............................. 221
Using engine residual heat
With 2-zone air conditioning
............................... 65
With 4-zone air conditioning
............................... 65
With manual air conditioning
.............................. 65
VVehicle
Battery
........................................................ 220
Care
............................................................ 270
Charging the battery
...................................... 325
Data bank
.................................................... 347
Identification number location
.......................... 347
Keys
.............................................................. 16
Lowering with level control
.............................. 191
Putting into operation
..................................... 322
Raising vehicle with the jack
............................ 192
Raising with level control
................................. 191
Recovering
................................................... 345
Securing the vehicle against rolling
................... 295
Storage
....................................................... 321
Storing your Porsche
...................................... 278
Towing
........................................................ 342
Transporting
................................................. 192
Vehicle door
Locking from inside
.......................................... 28
Locking with Porsche Entry & Drive (keyless)
........ 21
Locking with the car key (remote control)
............. 21
Unlocking with Porsche Entry & Drive (keyless)
..... 20
Unlocking with the car key (remote control)
.......... 20
Vehicle height, Technical data
................................... 360
Vehicle key (remote control)
Changing battery
........................................... 322
Emergency operation of key in ignition lock
........ 159
Locking the vehicle door
................................... 21
Opening/closing Panorama roof system
.............. 99
Opening/closing sliding/lifting roof
..................... 93
Opening/closing windows
(without Porsche Entry & Drive)
.......................... 89
Unlocking the vehicle door
................................ 20
Vehicle length, Technical data
................................... 360
Vehicle width, Technical data
.................................... 360
Ventilation
........................................................ 64
, 70
Vents
Adjusting
........................................................ 79
Opening/closing
.............................................. 79
Vertical coupling load
.............................................. 231
Voice control
......................................................... 106
Voltage indication
................................................... 121
Voltmeter
.............................................................. 121Battery/alternator warning
............................... 121
WWarning - brake booster
........................................... 154
Warning - brake proportioning
................................... 153
Warning messages
Displaying on multi-purpose display
................... 130
Warning messages on multi-purpose display
Overview
...................................................... 149
Washer fluid
Antifreeze
..................................................... 258
Filling capacity
.............................................. 359
Level
........................................................... 258
Topping up
................................................... 258
Washing the vehicle, instructions
............................... 271
Water crossing
....................................................... 199
Water crossing, tips on driving
.................................. 199
Wedges to prevent rolling
......................................... 296
Wedges to secure the vehicle against rolling
............... 296
Weights
Data
............................................................ 356
Wheel alignment
..................................................... 287
Wheel change
........................................................ 288
Wheels
Adjusting
...................................................... 287
Changing
............................................. 294
, 302
Comfort tire pressure, data (bar/psi)
................. 354
Fitting spare wheel on spare wheel bracket
........ 309
Flat
............................................................. 295
General information
........................................ 281
Inflating tires on vehicles with air suspension
...... 308
Inflating tires on vehicles without air suspension
.. 307
Inscription on light alloy wheels
........................ 291
Inscription on radial tire
................................... 290
Overview
...................................................... 350
Removing spare wheel from spare wheel bracket
309
Removing/fitting spacers
................................ 303
Replacing tires (general information)
.................. 286
Rim offset
.................................................... 350
Security wheel bolt (wrench socket)
.................. 294
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