2005 PORSCHE CAYENNE S parking brake

226
Shifting Gear, Traction Systems
Engine Braking Support
(Assistance when heading downhill)The Porsche Down-Hill Assistant is an assistance
system which helps the driver at slower downhill
driving up to approx. 12 mph (20 km/h), e.g., on
steep slopes or on wintry mountain roads.
As long as the gas pedal is not used when trav-
eling downhill, the Porsche Down-Hill Assistant is
active and brakes the vehicle.
The braking ability of the Engine Braking Support
is affected by slippery surfaces (e.g., on icy or
loose surfaces), like all brakes.
If road grip is lost on one or more wheels, the
system brakes the wheels which have good road
contact.
Conditions:
– The gas pedal must not be used when
travelling downhill.
– The speed must not exceed 12 mph
(20 km/h).
– The selector lever position D or Mmust be
engaged.
Warning!
Risk of accident. Reduced braking ability on
a slippery surface.
fAlways adjust your driving style to the driving situation.
Tip on driving
The Porsche Down-Hill Assistant is active when
driving downhill either forwards or backwards.
Checks on test standsPower measurement
Power measurements on roller test stands are not
approved by Porsche.
Brake tests
Brake tests must be carried out only in High Range
and on plate-type test stands or roller test stands.
The following limit values must not be exceeded
on roller test stands:
– Testing speed 4.7 mph (7.5 km/h)
– Test duration 20 seconds
Parking brake test
Parking brake tests on the brake tester must be
performed only with the ignition switched off and
the selector lever in position N.
Balancing wheels on the vehicle
During finish balancing of the wheels, the entire ve-
hicle must be lifted and the wheels must be free to
turn.

Maintenance, Car Care
255
Wiper BladesfWhen wiper performance deteriorates, replace
the wiper blades in good time.
fPlease observe the chapter “CAR CARE IN-
STRUCTIONS” on Page 265.
Caution!
Risk of damage if wiper arm accidentally
falls back onto the windshield.
fAlways hold the wiper arm securely when re-
placing the wiper blade.
Risk of damage if wiper blades that are
frozen in place are loosened improperly.
fThaw the wiper blades before loosening them.
Maintenance note
If the wiper blades rub or squeak, this can be as a
result of the following:
– If the vehicle is washed in an automatic car
wash, residues may adhere to the windshield.
These residues can only be removed using a
special cleaning solution.
Please contact your authorized Porsche dealer
for further information.
– The wiper blades may be damaged or worn.
fReplace damaged wiper blades as soon as
possible.
Replacing windshield wiper blades
Caution!
Risk of damage.
If the wiper blades are not changed properly,
they can come loose when the car is moving.
fCheck whether the wiper blades are seated se-
curely.
The wiper blade must be pushed onto the wip-er arm up to the stop.
1. Apply the parking brake.
2. Switch the windshield wipers off (position 0).
3. Switch ignition off.
4. Fold windshield wiper arm away from the wind-
shield.
5. Lift up wiper blade completely (arrow).
f f f

Maintenance, Car Care
257
Changing rear window wiper blade
Caution!
Risk of damage if the rear wiper is frozen in
place and is loosened improperly.
fThaw the wiper blade before loosening them.
fGrasp the wiper arm with both hands and separate it from the window.1. Apply the parking brake.
2. Switch ignition off.
3. Carefully fold the wiper arm away from the rear
window until it reaches its locking position
(approx. 60°).
4. Carefully unclip the wiper blade from the wiper
arm (arrow). Hold the wiper arm with your
other hand when doing this.
5. Push the new wiper blade onto the wiper arm
and snap it into place.
6. Carefully fold wiper arm back on to the rear
window.

294
Practical Tips, Minor Repairs
Changing Wheels
Warning!
Failure to follow these instructions may result
in serious personal injuries to you or to
bystanders.
Before changing the wheel
fIf you have a flat tire, move a safe distance off
the road. Turn the emergency flasher on and
use other warning devices to alert other motor-
ists.
fDo not park your vehicle where it may contact
dry grass, brush or other flammable materials.
The hot parts of the exhaust system could set
such materials on fire, thereby causing both
property damage and severe or fatal physical
injury.
fPassengers must not be in the vehicle when it
is jacked up.
fBefore you change a wheel, be sure the ground
is level and firm. If necessary, use a board
under the jack to ensure that the jack does not
sink into the ground.
fSet the parking brake and block the wheels
opposite the flat tire on the other side of the
vehicle.While operating the jack
fThe jack is only to be used for changing a
wheel. Do not use it as a support to work under
the car.
fThe car must be jacked up only at the illus-
trated jacking points.Lifting at any other place
may damage the vehicle or may result in per-
sonal injury. Never jack the car up by the body
or the bumpers.
fFor safety reasons do not use tire inflating bot-
tles. Do not use commercially available sealant
bottles. Use only the tire inflating bottle
located in the luggage compartment.
Sequence of operation
Warning!
The jack must be used only to raise the car
for wheel changing.The jack must never be
used as a support to work underneath the
vehicle. If the jack is accidentally dislodged,
you or bystanders could suffer severe per-
sonal injury.
fNever jack up other vehicles or other loads
with the jack.
fAlways place the car on stable supports if you
have to work under it. When working under the
vehicle, always use safety stands specifically designed for this purpose.
fPlease use a suitable knee rest to protect your
clothing against soiling.

Practical Tips, Minor Repairs
295
Flat Tire1. Stop the vehicle as far away from the driving
lane as possible.
The car must be parked on a firm and flat
surface offering adequate grip.
2. Switch on the emergency flashers.
3. Fully apply the parking brake.
4. Shift into 1st gear or move the selector lever
to position P.
5. Straighten the front wheels.
6. Withdraw the ignition key to lock the steering
and prevent the engine from being started.
7. Have any passengers leave the vehicle.
8. Set up a warning triangle at a suitable
distance.
A- Folding wedgesSecuring the vehicle against rollingFor this purpose, use the two folding wedges A
fastened on the tool box.
1. Unfold the wedges.
2. Engage the wedges.3. Place one wedge directly in front of and
another directly behind the diagonally opposite
wheel.

Practical Tips, Minor Repairs
315
44 Electrical seat adjustment, left; electrical steering column adjustment 3045
Electrical seat adjustment, left; seat heating, rear
30
46
47
Rear differential lock
10
48 Parking heater clock5
49
Servotronic, disengageable anti-roll bars
5
50 Heating pipe ventilation10
51
Diagnosis, parking brake switch
5
52 Rear wiper30
53
Heated rear window control unit, passenger compartment monitoring, light switch, steering column module
5
54 Headlight beam adjustment10
5556 Fan, front air-conditioning system4057
Fan, rear air-conditioning system
40
RES 1 Spare fuse 15
RES 2
Spare fuse 2
20 No. Designation Rating in A

Index
373
Vehicle info ........................................... 84
Warnings .............................................. 85
NNavigation system ...................................... 174
Normal level ............................................... 236OOctane ratings ............................................ 261
Odometer .................................................... 76
Off delay ........................................... 106
,151
Off-road ABS ..................................... 224,231
Off-road driving ........................................... 227
Recommendation ................................ 228
Off-road shifting
Limit speed ............................... 213,216
Oil ............................................................. 243
Change .............................................. 248
Consumption ........................................ 14
Dipstick .............................................. 245
Filler opening ...................................... 246
Performance class .............................. 248
Temperature gauge .............................. 74
Topping up ......................................... 246
Viscosity ............................................ 248
Warnings ............................................ 244
Oil level
Checking ............................................ 244
On-board computer .............................. 80,185
Basic Screens ...................................... 81
Clock ................................................. 101
Collapsible spare wheel ......................... 92
Comfort ............................................. 103Factory settings ..................................107
Language ...........................................107
Level ....................................................85
Lighting ..............................................106
Load ....................................................93
Locks/reduction....................................86
Main menu ............................................82
MPH limit ..............................................83
Operation, controls ...............................80
Settings .............................................101
Spare wheel..........................................91
System.................................................94
Tire pressure .................................87
,89
Tire sealant/sealing set .........................92
Tire type...............................................90
Units ..................................................106
Vehicle info ...........................................84
Warnings ..............................................85
Operating in other countries.........................258
Oxygen sensor ...........................................264
PPaint ..........................................................268
Panic button .................................................17
Panorama roof system ................................156
ParkAssist ................................162
,164
,199
Parking ......................................................209
Parking aid ..........................................34,162
Parking brake ...............................................64
Test stand ..........................................226
Warning light................................65,112
Parking heater ............................................142
Activating the memory .........................145
Faults .................................................146Programming ............................ 143
,144
Switching on and off ........................... 143
Parking light .............................................. 119
Particle filter .............................................. 254
PASM ............................................... 217,239
Display .............................................. 239
Indicator light ..................................... 113
Warning light ...................................... 239
Passenger compartment ............................ 197
Passenger compartment
monitoring system............ 21
,23,27,28,30
Passenger-seat drawer ............................... 179
PCM .......................................................... 174
Person buttons ............................................ 33
Plastic parts .............................................. 271
Polishing.................................................... 268
Porsche Active Suspension Management .... 217,
239
Display .............................................. 239
Indicator light ..................................... 113
Warning light ...................................... 239
Porsche Communication Management ......... 174
Porsche Down-Hill Assistant ........................ 226
Porsche Drive-Off Assistant ......................... 225
Porsche Entry & Drive ......................... 24
,182
Immobilizer .......................................... 25
Opening/locking rear window ................ 24
Opening/locking spare wheel bracket .... 24
Porsche Stability Management .. 217
,220
,302
Deactivating ....................................... 222
Indicator light ..................................... 112
Information light ................................. 222
Off road ............................................. 221
Switching on ...................................... 222

378Porsche 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 ............................................. 52
Multi-Functional Steering Wheel ...................... 54
Interior Mirror ............................................... 56
Door Mirrors ................................................ 56
Automatic Anti-Dazzle Mirror .......................... 58
Ignition Lock/Steering Lock ........................... 59
Starting and Stopping the Engine ................... 61
Parking Brake............................................... 64
Brakes ......................................................... 65
Instrument Panel USA Models ........................ 70
Instrument Panel Canada Models ................... 72
Oil Temperature Gauge ................................. 74
Cooling System ............................................ 75
Fuel ............................................................. 76
Odometer .................................................... 76
Clock ........................................................... 77Voltmeter ..................................................... 78
Emission Control........................................... 79
Multi-Purpose Display .................................... 80
Warning Lights and Warning Messages ......... 108
Light Switch ............................................... 116
Instrument Illumination ................................. 118
Automatic Headlight Beam Adjustment.......... 118
Turn signal/High Beam/Headlight Flasher Stalk ...
119
Emergency flasher ...................................... 120
Windshield Wiper/Washer Stalk .................... 121
Cruise Control ............................................ 124
Vents ......................................................... 127
Fresh-air intake ........................................... 127
Heated Rear Window ................................... 128
Manual Air Conditioning ............................... 129
Automatically Controlled Two-Zone Air Condi-
tioning........................................................ 132
Automatically Controlled Four-Zone Air Condi-
tioning........................................................ 136
Parking Heater............................................ 142
Sun Visors .................................................. 147
Sun Blinds, Rear Side Windows .................... 148
Interior Lighting .......................................... 149
Door-Surrounding Lighting ........................... 151
Coming Home Function (Off Delay) ............... 151
Sliding/Lifting Roof ..................................... 152
Parking Aids ............................................... 162
Garage Door Opener ................................... 167
Ashtray ...................................................... 170
Cigarette Lighter......................................... 171
Car Audio Operation/Tips ............................ 172
Porsche Communication Management (PCM). 174
Storage...................................................... 176
Cupholder .................................................. 180Rear Lid .....................................................182
Rear Window...............................................184
Engine Compartment Lid .............................184
Loadspace .................................................186
Luggage Compartment Cover ......................187
Luggage Safety Net ....................................189
Ski Bag ......................................................191
Roof Transport System................................193
Trailer Coupling...........................................194
Loading Information.....................................195
Manual transmission, clutch .........................202
Tiptronic S..................................................203
Selector Lever Positions ..............................204
Driving Programs for On-Road and Off-Road Dri-
ving ...........................................................211
Power-Transmission and Running-Gear Control Sy-
stems ........................................................217
Off-Road Driving ..........................................227
Air Suspension with Level Control and Height Adju-
stment .......................................................236
Porsche Active Suspension Management (PASM) .
239
Exercise Extreme Caution when Working on your
Vehicle .......................................................242
Engine Oil Level ..........................................244
Engine Oil Recommendation .........................247
Coolant Level ..............................................249
Brake-Fluid Level .........................................251
Washer Fluid ...............................................252
Power Steering ...........................................253
Air Cleaner .................................................254
Particle Filter ..............................................254
Automatic Transmission Fluid .......................254
Manual Transmission Oil ..............................254
Wiper Blades ..............................................255