2005 PORSCHE CAYENNE S brake pads

14
Controls, Safety, Instruments
Break in hints for the first
2,000 miles (3,000 kilometers)The following tips will be helpful in obtaining opti-
mum performance from your new Porsche.
Despite the most modern, high-precision manufac-
turing methods, it cannot be completely avoided
that the moving parts have to wear in with each
other. This wearing-in occurs mainly in the first
2,000 miles (3,000 km).Therefore:fPreferably take longer trips.
fAvoid frequent cold starts with short-distance
driving whenever possible.
fAvoid full throttle starts and abrupt stops.
fDo not exceed maximum engine speed of
4,200 rpm (revolutions per minute).
fDo not run a cold engine at high rpm either in
Neutral or in gear.
fDo not let the engine labor, especially when
driving uphill. Shift to the next lower gear in
time (use the most favorable rpm range).
fNever lug the engine in high gear at low
speeds. This rule applies at all times, not just
during the break-in period.fDo not participate in motor racing events,
sports driving schools, etc. during the first
2,000 miles (3,000 kilometers).
There may be a slight stiffness in the steering or
other controls during the break-in period which will
gradually disappear.
Break in brake padsNew brake pads and discs have to be “broken in“,
and therefore 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.New tiresNew tires do not have maximum traction. They
tend to be slippery.
fBreak in new tires by driving at moderate
speeds during the first 60 to 120 miles (100
to 200 km). Longer braking distances must be
anticipated.
Engine oil consumptionDuring the break-in period oil consumption may be
higher than normal.
As always, the rate of oil consumption depends on
the quality and viscosity of oil, the speed at which
the engine is operated, the climate and road con-
ditions, as well as the amount of dilution and oxi-
dation of the lubricant.
fMake a habit of checking engine oil with every
fuel filling, add if necessary.
fPlease observe the chapter “ENGINE DATA” on
Page 356.

68
Controls, Safety, Instruments
Brake wearYour car has excellent brakes, but they are still
subject to wear. The rate at which they wear de-
pends on how the brakes are used.
fHave the brake system inspected at the inter-
vals recommended in your Maintenance Book-
let.
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 pads
are worn, excessively.
fDo not continue to operate the vehicle.
Have your authorized Porsche dealer inspect
or replace the brake pads.
fPlease observe the chapter “WARNING LIGHTS
AND WARNING MESSAGES” on Page 108.
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 con-
ditions (such as temperature and humidity) there-
fore might cause the brakes to squeal.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.
Brake wear warning light
USA
Brake wear warning light
Canada

Controls, Safety, Instruments
69
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 observe the chapter “TOWING” on
Page 350.
In heavy rain, while driving through water or after
leaving a car wash, the braking action may be de-
layed 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 gritted roads, a
coating may form on the brake discs and pads
that significantly reduces friction and thus braking
action.
fTherefore, clean the brake discs and pads ap-
prox. every 2 weeks with a strong jet of water.
The cleaning effect of automatic car washes is
insufficient.
To prevent corrosion of the brake discs, “brake
them dry” before parking the car.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 re-
sult.
The nature, extent and effects of corrosion de-
pend 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.
fTo relieve the braking system on downhill
stretches, change down to a lower gear in
good 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 observe the chapter “BRAKE-FLUID LE-
VEL” on Page 251.

112
Controls, Safety, Instruments
Oil pressure too low Immediately stop in a suitable place and switch engine off.
Do not continue driving.
Check engine oil level. Add oil if necessary.
Do not continue driving if the warning light comes on even when
the oil level is correct. Have the fault remedied at an authorized
Porsche dealer.
Service in 1864 mls (3000 km)Service indicator
Bring the vehicle in for service no later than after the distance
shown has been covered.
Service nowService indicator
Have your vehicle serviced at an authorized Porsche dealer.
Brake pads – Workshop Have the brake pads replaced at an authorized Porsche dealer
without delay.
Warning – Brake circuit division Stop immediately in a suitable place. Do not continue driving.
Have the fault remedied at an authorized Porsche dealer.
ABS failure – WorkshopDrive carefully. Have the fault remedied at an authorized
Porsche dealer.
PSM failure – WorkshopDrive carefully. Have the fault remedied at an authorized
Porsche dealer.
Warning – Brake fluid level Stop immediately in a suitable place. Do not continue driving.
Have the fault remedied at an authorized Porsche dealer.
Parking brake Parking brake not released.
PSM onPorsche Stability Management was switched on.
PSM offPorsche Stability Management was switched off.
PHC failureThe Porsche Drive-Off Assistant (manual transmission) and the
Engine Braking Support (downhill assistance) are not available.
Brake booster faulty Greater braking pedal force necessary. Drive carefully to the
nearest authorized Porsche dealer.
Instrument
panelMulti-purpose
displayText display Meaning/measures

Shifting Gear, Traction Systems
229
Recommended procedure
fDeactivate Low Range.
fClean headlights and tail lights and check them
for signs of damage.
fClean the front and rear lincence 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.

368
Index
IndexAABD ......................................... 217
,219
,221
ABS ......................................... 217
,220
,223
Off road ............................................. 224
Warning light ...................................... 223
After driving off road ................................... 228
Aftermarket Alarms ..................................... 173
Air cleaner.................................................. 254
Air conditioning
Central vents ............................. 134,140
Cover flap .......................................... 128
Disabling control panel (rear) ............... 137
Display ............................. 129
,132
,136
Footwell .................................... 134,140
Four zone ........................................... 136
Fresh-air intake ................................... 127
Mono function ..................................... 133
Rear.......................................... 137,141
REST mode ............................... 135,141
Sensors ............................................. 128
Setting air quantity ............ 130
,133
,139
Setting temperature ................... 133,138
Side vents ................................. 134,140
Two zone .................................. 129,132
Vents ................................................. 127
Windshield ................................. 134,140
Air quantity
Setting ............................. 130
,133
,139
Air suspension ................. 163
,179
,217
,236
Airbag ................................................. 49,273
Disposal ............................................... 51Function ............................................... 49
Unit ...................................................... 52
Warning light......................................... 50
Air-conditioned areas
Rear................................................... 141
Air-conditioning compressor....... 129
,135
,140
Alarm button................................................. 17
Alarm system . 21
,23,27,28,30,194
,310
Alcantara.................................................... 273
All-Season tires .................................. 358,359
All-Terrain tires ................................... 358,359
All-wheel drive ........................... 113
,217
,219
Anti-freeze content ...................................... 249
Anti-lock brake system .............. 217
,220
,223
Anti-roll bars
Disengageable .................................... 214
Armrest...................................................... 178
Ashtray
Front .................................................. 170
Rear................................................... 170
Assembly aid ..................................... 301,307
Assistance when driving downhill .................. 226
Audio
Tips ................................................... 172
AUTO button .................... 132
,133
,136
,138
AUTO-LOCK .................................................. 23
Automatic anti-dazzle operation...................... 58
Automatic brake differential ....... 217
,219
,221
Automatic circulating-air mode ............ 134,139
Automatic mode, air conditioning132
,133
,138
Automatic transmission fluid ........................ 254
BBattery ......................... 59
,62,78,174
,320
After charging ..................................... 333
Car key .............................................. 334
Care................................................... 320
Charge state....................................... 320
Charging ............................................ 333
Installing ............................................. 330
Putting vehicle into operation ...............321
Removing ........................................... 328
Removing/installing .................... 323,327
Replacing ........................................... 322
Warning light....................................... 111
Winter driving...................................... 321
Before driving off .................................12,228
Belts ............................................................ 42
Fastening ............................................. 44
Height adjustment ................................. 45
Opening ............................................... 44
Tensioner ............................................. 43
Warning light.................................. 43,48
Brake ...........................................................65
Booster ................................................ 67
Discs ................................................... 68
Pads .................................................... 68
Warning light......................................... 66
Brake fluid
Changing ............................................ 252
Brake light .................................................. 346
Brake tests................................................. 226
Brake wear

Index
369
Warning light ........................................ 68
Brake-fluid level
Checking ............................................ 251
Brakes ................................................ 64
,226
Fluid.......................................... 251,362
Fluid warning light ...................... 112,252
Pads ............................................. 14,69
Test stand .......................................... 226
Warning light ........................................ 65
Wear .................................................. 112
Bulbs
Changing............................................ 346
Chart ................................................. 335
CCapacities .................................................. 362
Car care..................................................... 265
Car key
Battery ............................................... 334
Car Telephone ............................................ 173
Care ................................................. 269
,271
cargo area ................................................. 186
Carpet ....................................................... 272
Catalytic converter...................................... 264
Center differential lock ................................ 213
Central locking system ......................... 21,310
Button .................................................. 22
Button (rear) .................................. 22,31
Unlocking vehicle doors ......................... 21
Central vents ..................................... 134
,140
Changing wheels................................ 294,301
Check engine ............................................... 79
Checking hydraulic fluid (power steering) ...... 253
Child restraint anchorages ............................. 46Child restraint systems ..................................47
Child seat bracket .........................................48
Child seats ...................................................48
Installing ...............................................48
Childproof locks
Rear doors ...........................................26
Cigarette lighter ..........................................171
Circulating-air mode ...........................134
,139
Circulating-air mode, automatic ...........134,139
Cleaner
Air......................................................254
Particle...............................................254
Clock ..................................................77,101
Closing mechanism, power ..........................183
Clutch ........................................................202
Collapsible spare wheel ............. 92
,110
,222
,
......................................302
,327
,358
,359
Comfort function
Sliding/lifting roof.......................153,158
Comfort lighting ..........................................151
Coming Home function .......................106,151
Compass....................................................102
Compressor ......................................293,304
Coolant
Checking ............................................249
Cooling system .............................................75
Engine coolant level warning ..................75
Temperature gauge...............................75
Warning ................................................75
Cornering light ...................................117,342
Crankcase ventilation ..................................264
Crossing obstacles .....................................234
Cruise control
Accelerating .......................................125
Decelerating .......................................125Interrupting ........................................ 125
Speed limit ........................................ 124
Storing speed .................................... 124
Switching off ...................................... 126
Switching on ...................................... 124
Cupholder.................................................. 180
Closing rear ....................................... 181
Opening front ..................................... 180
opening rear ...................................... 181
Removing insert front ......................... 180
DData bank .................................................. 354
Diagnostic Socket ........................................ 15
Dimensions ................................................ 365
Dimming .................................................... 151
Button ............................................... 149
Door lock
Deicing .............................................. 267
Door locking, automatic ....................... 23
,104
Door mirrors .............................. 56
,151
,198
Automatic anti-dazzle operation ............. 58
Driving with a trailer ............................ 198
Extending ............................................ 57
Folding in ............................................. 57
Heating................................................ 57
Setting ................................................ 57
Swivelling, automatic ............................ 57
Door opening .......... 19
,20,21,23,26,104
Emergency operation ........................... 18
Door trim panel
Lighting ............................................. 151
Doors.......................................................... 26
Door-surrounding lighting ............................ 151