2004 PORSCHE CAYENNE brakes

3
California Proposition 65 Warning
Warning!
Engine exhaust, some of its constituents, and
certain vehicle components contain or emit chemi-
cals known to the State of California to cause
cancer and birth defects or other reproductive
harm.
In addition, certain fluids contained in vehicles and
certain products of component wear contain or
emit chemicals known to the State of California to
cause cancer and birth defects or other reproduc-
tive harm.Hot Exhaust Pipes
Warning!
Risk of burn injury when standing near or
coming into contact with the exhaust pipe.
The exhaust pipe is hot when the vehicle is running
and remains hot for some time after the vehicle is
turned off.
fTo prevent injury, make a point of noting where
your vehicle’s exhaust pipe is, avoid placing
your legs near the exhaust pipe when loading
and unloading cargo in the rear, and closely
supervise children around the vehicle during
time when the exhaust pipe could be hot. A hot exhaust pipe can cause serious burns.
Portable Fuel Containers
Danger!
Portable fuel containers may leak, whether
they are full or partially empty. Fuel leaking
from a portable container carried in your
vehicle could, in case of an accident, cause
a fire or explosion, resulting in serious
personal injury or death.
fNever carry additional fuel in portable contai-ners in your vehicle.
Vehicles with SportDesign package
Caution!
Risk of damage. On vehicles with Sport-
Design package, front, rear, and side
member trim are painted and located lower
on the vehicle. Off-road driving can seriously
damage these trim parts.
fWhen driving off-road, make sure these parts
are not damaged.
fMake sure there is sufficient clearance
between obstacles and the underside of the
vehicle.
fAvoid driving through water.
fDo not use side member trim as a running board.
Porsche Ceramic Composite Brake
(PCCB)fPlease see the chapter “BRAKES” on
Page 163.
The high-performance brake system is designed
for optimal braking effect at all speeds and tempe-
ratures.
Certain speeds, braking forces and ambient condi-
tions (such as temperature and humidity) therefore
might cause brake noises.
Wear on the different components and braking
system, such as brake pads and brake discs,
depends to a great extent on the individual driving
style and the conditions of use and therefore
cannot be expressed in actual miles on the road.
The values communicated by Porsche are based
on normal operation adapted to traffic. Wear incre-
ases considerably when the vehicle is driven on
race tracks or through an aggressive driving style.
fPlease consult an authorized Porsche dealer
about the current guidelines in effect before
such use of your vehicle.
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8
Table of ContentsMulti-Purpose Display
and Instruments .............................. 115Instrument Panel USA Models ...................... 117
Instrument Panel Canada Models.................. 119
Oil Temperature Gage ................................. 120
Tachometer................................................ 120
Clock ......................................................... 120
Fuel Gage................................................... 120
Speedometer ............................................. 120
Odometer .................................................. 121
Voltmeter ................................................... 121
Cooling System .......................................... 122
Emission Control......................................... 123
Operating the multi-purpose display on the
instrument panel ......................................... 124
Opening the main menu............................... 125
Operating example: Displaying average
consumption .............................................. 125
Displaying/resetting average speed ............. 127
Displaying range on remaining fuel ............... 127
Displaying tire pressure ............................... 127
Displaying compass .................................... 127
Displaying navigation information ................. 127
Operating the telephone via the
multi-purpose display .................................. 128
Setting speed limit on the multi-purpose
display ....................................................... 129
Displaying warning messages ...................... 130
Displaying status of level control .................. 131
Displaying status of locks/reduction ............. 131
Displaying average consumption .................. 132
Setting Tire Pressure Monitoring .................. 132Switching off passenger compartment
monitoring on the multi-purpose display ........142
Synchronous adjustment of door mirrors ......143
Changing settings for opening and locking
the vehicle ..................................................143
Switching daytime driving lights on/off..........145
Setting lighting off delay ..............................146
Setting the clock .........................................146
Setting compass.........................................147
Changing language for displays....................148
Changing units for displays ..........................148
Resetting display to factory settings .............148
Overview of warning messages...............149
Driving and Driving Safety ................ 157Ignition Lock/Steering Lock .........................158
Starting and Stopping the Engine .................160
Parking Brake .............................................162
Brakes .......................................................163
Cruise Control ............................................167
Manual transmission, clutch .........................169
Tiptronic S..................................................170
Selector Lever Positions ..............................171
Driving Programs for On-Road and
Off-Road Driving ..........................................177
Power-Transmission and
Running-Gear Control Systems .....................181
Air Suspension with Level Control and
Height Adjustment .......................................190
Porsche Active Suspension Management
(PASM) .......................................................193
Porsche Dynamic Chassis Control (PDCC) .....194
Off-Road Driving ..........................................195
Luggage Compartment,
Loadspace and Storage.................... 203Folding rear seats forward and returning
to upright position ...................................... 204
Loadspace ................................................ 207
Cargo management system ........................ 208
Luggage Compartment Cover ..................... 211
Luggage safety net .................................... 212
Ski Bag ..................................................... 214
Roof Transport System............................... 216
Off-road roof-mounted Headlights
Cayenne S Transsyberia............................. 217
Car Audio Operation/Tips............................ 218
Porsche Communication Management
(PCM) ........................................................ 220
iPod, USB and AUX..................................... 221
Storage ..................................................... 222
Cupholder.................................................. 226
Ashtray...................................................... 227
Cigarette Lighter ........................................ 228Trailer Hitch .................................... 229Trailer Coupling.......................................... 230
Loading Information.................................... 231Parking ........................................... 236Parking Aids .............................................. 237
Swivelling down mirror glass as parking aid.. 241
Garage door opener................................... 241
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Multi-Purpose Display and Instruments
155
Shift not possible;
Speed too highTiptronic S: When changing between Low Range and High Range, the limit speed (Low Range program)
must not be exceeded.Shift only possible in neutral Tiptronic S: The Tiptronic selector lever must be in position N when changing between Low Range and
High Range.Possible only when stopped in
neutral with brakeManual transmission: The vehicle must be stationary, the brakes must be applied and the gearshift lever
must be in the neutral position when changing between Low Range and High Range.Warning parking lock!
Apply parking brake!Do not continue driving. Apply the parking brake.
Have the fault remedied at an authorized Porsche dealer.Failure sport mode Have the fault remedied at an authorized Porsche dealer.Sport mode only usable
without reductionSport mode cannot be selected when the off-road driving program (Low Range) is engaged.Limit exceeded. The set speed limit has been exceeded.
Spare wheel is not locked.
Danger of injury and damage. Before driving off always lock the spare wheel correctly.Driver’s door open
All unlocked doors and lids are displayed when the vehicle exceeds 2 mph (3 km/h).Passenger’s door open
All unlocked doors and lids are displayed when the vehicle exceeds 2 mph (3 km/h).Rear left door open
All unlocked doors and lids are displayed when the vehicle exceeds 2 mph (3 km/h).
Light on
instrument
panel
Warning message on the multi-purpose
displayMeaning/measures
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Driving and Driving Safety
157 Driving and Driving Safety
Ignition Lock/Steering Lock ........................ 158
Starting and Stopping the Engine ................ 160
Parking Brake ............................................ 162
Brakes ...................................................... 163
Cruise Control............................................ 167
Manual transmission, clutch ........................ 169
Tiptronic S ................................................. 170
Selector Lever Positions ............................. 171
Driving Programs for On-Road and
Off-Road Driving ......................................... 177
Power-Transmission and
Running-Gear Control Systems .................... 181
Air Suspension with Level Control and
Height Adjustment ...................................... 190
Porsche Active Suspension
Management (PASM) .................................. 193
Porsche Dynamic Chassis Control (PDCC) .... 194
Off-Road Driving ......................................... 195
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Driving and Driving Safety
163
The warning lights will go out after the parking
brake is fully released.
The warning lights are not an indicator that the
parking brake is fully applied; it is only intended to
be a warning to release the parking brake before
driving the car.
Caution!
A partially engaged brake will overheat the
rear brakes, reduce their effectiveness and
cause excessive wear.
fRelease the parking brake fully.
fWhen parking your car, press down firmly on
the foot pedal.
fMove the Tiptronic selector lever to “P”
(Tiptronic) or move the gearshift lever to
reverse or first gear (Manual transmission).
fOn hills also turn the front wheels towards the
curb.
BrakesfMake it a habit to check the operation of your
brakes before driving.
Keep in mind that the braking distance increases
very rapidly as the speed increases. At 60 mph
(100 km/h), for example, it is not twice but four
times longer than 30 mph (50 km/h). Tire traction
is also less effective when the roads are wet or
slippery.
fTherefore, always maintain a safe distance
from the car in front of you.Vehicles without Porsche Ceramic
Composite Brake (PCCB)Even though the brake discs consist of alloyed
grey cast iron, they will unavoidably start to cor-
rode if your car is parked for an extended period.
The brakes will tend to “rub” as a result.
The nature, extent and effects of corrosion
depend on the amount of time the vehicle was
parked, whether road salt or grit was spread and
whether grease-dissolving agents were used in
car washes.
If the braking comfort is noticeably impaired, we
recommend having the brake system checked by
experts at an authorized Porsche dealer.
Brake system functionYour Porsche is equipped with a power assisted
hydraulic dual circuit brake system with disc
brakes at the front and rear.
Both circuits function independently. One brake
circuit operates the front left and rear right wheel
and the other operates the front right and rear left
wheel.
If one brake circuit has failed, the other will still
operate. However, you will notice an increased
pedal travel when you apply the brakes.Failure of
one brake circuit will cause the stopping distance
to increase.
Warning!
Risk of an accident, resulting in serious per-
sonal injury or death.
In the unlikely event of hydraulic failure of
one brake circuit:
fPush the brake pedal down firmly and hold it in
that position. A mechanical linkage activates
the second circuit, and you will be able to bring
the vehicle to a stop.
fAfter bringing your vehicle to a complete stop,
avoid driving the vehicle and instead have it
towed to the nearest authorized Porsche dealer for repair.
Parking Brake warning
light USA
Parking Brake warning
light Canada
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164
Driving and Driving Safety Brake system warning light
You can check the functionality of the brake sys-
tem warning light by switching the ignition to the
“On” position and verifying that the warning light
illuminates.
The warning light in the instrument panel lights up.
A message will be displayed on the multi-purpose
display of the instrument panel if the brake fluid
level is too low, or (if the brake pedal travel has in-
creased) one of the two brake circuits has failed.
A greater braking pressure will be required, stop-
ping distances will be longer and the braking
behavior will change, particularly in curves.
With correctly adjusted brakes and a correctly
working brake system, the pedal travel to the
point of brake application should be 1-3/16 in. to
1-9/16 in. (30 to 40 mm). Whenever the brake
pedal travel exceeds this value, have the brake
system checked.
Brake pedal
Warning!
Risk of an accident, resulting in serious per-
sonal injury or death.
Any obstruction of the brake pedal could in-
crease the stopping distance.
fAlways check the movement of the brake pedal
before driving and make sure that it is not
obstructed by a floor mat or any other object.
fSecure the floor mat to prevent it from sliding
into positions that could interfere with the safe
operation of your vehicle.
Your Porsche dealer will be glad to offer you
floor mats of the correct size including a securing possibility.
Note
In case one of the two brake circuits fails,
increased pedal travel is required to bring your
vehicle to a full stop.
Warning!
To avoid overheating and premature wear of
the brakes:
fBefore descending a steep grade, reduce
speed and shift the transmission into a lower
gear to control speed.
fDo not “ride the brakes” by resting your foot on
the pedal when not intending to apply brake
pressure.
fDo not hold the pedal down too long or too
often. This could cause the brakes to get hot and not function properly.
Brake warning light USA
Brake warning light
Canada
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Driving and Driving Safety
165
Brake boosterThe brake booster assists braking only when
the engine is running.
When the car is moving while the engine is not
running, or if the brake booster is defective, more
pressure on the brake pedal is required to bring
the car to a stop.
Moisture, road salt or grit on brakes affects
braking.
Brakes will dry after a few cautious brake applica-
tions.
Warning!
Risk of an accident, resulting in serious per-
sonal injury or death.
Driving through water may reduce the trac-
tion. Moisture on brakes from road water, car
wash, or a coating of road salt or grit may
affect braking efficiency.
fCautiously apply brakes to test brakes after exposure to road water, etc.
Brake wearYour car has excellent brakes, but they are still
subject to wear. The rate at which they wear
depends on how the brakes are used.
fHave the brake system inspected at the inter-
vals recommended in your Maintenance Book-
let.
Brake system warning light
You can check the functionality of the brake sys-
tem warning light by switching the ignition to the
“On” position and verifying that the warning light
illuminates.
A warning message will be displayed on the multi-
purpose display of the instrument panel if the
brake pads are worn, excessively.
fDo not continue to operate the vehicle.
Have your authorized Porsche dealer inspect
or replace the brake pads.
fPlease see the chapter “OVERVIEW OF
WARNING MESSAGES” on Page 149.
Brake pads and brake discsWear on the brake pads and brake discs depends
to a great extent on the driving style and the con-
ditions of use and therefore cannot be expressed
in actual miles on the road.
The high-performance brake system is designed
for optimal braking effect at all speeds and tem-
peratures.
Certain speeds, braking forces and ambient
conditions (such as temperature and humidity)
therefore might cause the brakes to squeal.
Brake wear warning message
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166
Driving and Driving Safety New brake pads or linings
New brake pads have to be “broken in”, and there-
fore only attain optimal friction when the car has
covered several hundred miles or km.
The slightly reduced braking ability must be com-
pensated for by pressing the brake pedal harder.
This also applies whenever the brake pads and
brake discs are replaced.
Warning!
fDo not obstruct the pedal travel with floor mats
or other objects.
The brake booster is ready for operation only
while the engine is running.
If the engine is switched off or there is a defect in
the brake booster, much greater force has to be
applied to the pedal when braking.
fPlease see the chapter “TOWING” on
Page 342.
In heavy rain, while driving through water or after
leaving a car wash, the braking action may be
delayed and increased pressure may be required.
fFor this reason, keep further back from the ve-
hicle in front and “dry” the brakes by applying
them at intervals. Make sure that following traf-
fic is not affected.
After a long drive over salted or sanded roads, a
coating may form on the brake discs and pads
that significantly reduces friction and thus braking
action.fEven though the brake discs consist of alloyed
grey cast iron, they will unavoidably start to
corrode if your car is parked for an extended
period. The brakes will tend to “rub” as a
result.
The nature, extent and effects of corrosion
depend on the amount of time the vehicle was
parked, whether road salt or grit was spread
and whether grease-dissolving agents were
used in car washes (not on vehicles with
Porsche Ceramic Composite Brake).
To prevent corrosion of the brake discs, “brake
them dry” before parking the car (not on
vehicles with Porsche Ceramic Composite
Brake).
If the braking comfort is noticeably impaired,
we recommend having the brake system
checked by experts at an authorized Porsche
dealer.
fTo relieve the braking system on downhill
stretches, change down to a lower gear in
enough time to obtain engine braking.
If engine braking is insufficient on steep
stretches, operate the footbrake at intervals.
Continuous braking overheats the brakes and
reduces the braking effect.
fPlease see the chapter “BRAKE-FLUID LEVEL”
on Page 257.
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