2004 PORSCHE CAYENNE open gas tank

Maintenance and Car Care
269
Fuel RecommendationsYour Porsche is equipped with catalytic conver-
ters and must use UNLEADED FUEL ONLY.
Your engine is designed to provide optimum
performance and fuel economy using unleaded
premium fuel with an octane rating of 98 RON
(93 CLC or AKI). Porsche therefore recom-
mends the use of these fuels in your vehicle.
Porsche also recognizes that these fuels may not
always be available. Be assured that your vehicle
will operate properly on unleaded premium fuels
with octane numbers of at least 95 RON
(90 CLC or AKI), since the engine's “Electronic
Octane™ knock control” will adapt the ignition
timing, if necessary.
It is important to observe the regular service inter-
vals, and particularly the oil change intervals, spe-
cified in your Maintenance Schedule.
The use of UNLEADED FUEL ONLY is critically
important to the life of the catalytic
converters. Deposits from leaded fuels will
ruin the converters and make it ineffective
as an emission control device.
Cars with catalytic converters have a smaller fuel
tank opening, and gas station pumps have smaller
nozzles. This will prevent accidental pumping of
leaded fuel into cars with catalytic converters.Unleaded fuels may not be available outside the
continental U.S. and Canada. Therefore, we
recommend you do not take your car to areas or
countries where unleaded fuel may not be
available.
Octane ratingsOctane rating indicates a fuel's ability to resist
detonation. Therefore, buying the correct octane
gas is important to prevent engine “damage”.
The RON octane rating is based on the research
method. The CLC (U.S. Cost of Living Council oc-
tane rating) or AKI (antiknock index) octane rating
usually displayed on U.S. fuel pumps is calculated
as research octane number plus motor octane
number, divided by 2, that is written as:
The CLC or AKI octane rating is usually lower than
the RON rating:
For example: 95 RON corresponds 90 CLC or
“AKI”
fDo not use fuel additives without Porsche
approval.
Fuels containing ethanolfDo not use any fuels containing more than 10
percent ethanol by volume.
We recommend, however, to change to a different
fuel or station if any of the following problems
occur with your vehicle:
– Deterioration of driveability and performance.
– Substantially reduced fuel economy.
– Vapor lock and non-start problems, especially
at high altitude or at high temperature.
– Engine malfunction or stalling.
RON MON+
2 ----------------------------------
orRM+
2 ---------------
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368
Index
Front windshield wipers
Adjusting the rain sensor sensitivity
.................. 112
Changing the sensitivity
.................................. 112
Changing wiper blades
................................... 261
Switching on rain sensor
................................. 111
Windshield wiping plus washer system
............... 113
Windshield, fast wiping
................................... 112
Windshield, slow wiping
.................................. 112
Wiping windshield once (one-touch function)
....... 112
Fuel
Economy
..................................................... 265
Evaporation control
........................................ 270
Fuel level gage
.............................................. 120
Fuel reserve warning
...................................... 120
General information
........................................ 269
Octane rating
................................................ 269
Portable fuel containers
...................................... 3
Quality
......................................................... 269
Recommendations
......................................... 269
Refueling
...................................................... 268
Tank capacity
...................................... 268
, 359
Fuel containers, portable
............................................. 3
Fuel filler opening
Opening filler flap
.......................................... 267
Fuel level gage
....................................................... 120
Fuel reserve
.......................................................... 268
Function keys on steering wheel
.................................. 60
Fuse
Disabling power windows in the rear doors
........... 88
Fuse assignment, overview
...................................... 315
Fuses
Changing fuses
............................................. 313
GGarage door opener
Assigning a signal
.......................................... 243
Deleting programmed signals
.......................... 242
Functional description
..................................... 241
Operating
..................................................... 243
Synchronisation for changeable-code systems
.... 243
Gear display for Tiptronic S
...................................... 171
Gear selector (Tiptronic S)
Automatic
.................................................... 171
Changing selector-lever position
....................... 170
Display on the multi-purpose display
.................. 171
Emergency operation
..................................... 175
Selector-lever positions
.................................. 171
Glasses case in the roof console
............................... 222
Glove compartment
Cooling
........................................................ 223
Locking
........................................................ 223
Opening
....................................................... 223
Switching off cooling
...................................... 223
Gross weight
......................................................... 231
Ground clearance
................................................... 360
Data
............................................................ 357
HHalogen
Changing bulb for high beam
........................... 330
Changing bulb for low beam
............................ 329
Changing bulb for side light
(Cayenne, Cayenne S, Cayenne S Transsyberia)
.. 333
Installing headlights
........................................ 328
Removing headlights
...................................... 327
Handbrake (parking brake)
Applying
....................................................... 162
Releasing
..................................................... 162
Warning message on multi-purpose display
........ 153
Headlight beam adjustment
...................................... 234
Headlight beam adjustment (automatic)
Checking operation
........................................ 106
Functional description
..................................... 106
Headlights
.................................................... 327
, 330
Adjusting
...................................................... 339
Before driving with a trailer
.............................. 234
Care instructions
........................................... 276
Changing bulb for additional high beam
(Bi-Xenon headlights)
...................................... 331
Changing bulb for additional high beam
halogen headlights)
........................................ 330
Changing bulb for cornering light
(Bi-Xenon headlights)
...................................... 332
Changing bulb for high beam
(halogen headlights)
....................................... 330
Changing bulb for low beam, halogen
................ 329
Changing bulb for side light (Cayenne GTS)
........ 335
Changing bulb for side light
(Cayenne, Cayenne S, Cayenne S Transsyberia)
.. 333
Changing gas-discharge headlight
(Bi-Xenon headlights)
...................................... 330
Changing to left/right-hand traffic
..................... 340
Height adjustment
.......................................... 340
Installing
...................................................... 328
Operating washer system
................................ 113
Removing
..................................................... 327
Headrests
Adjusting
........................................................ 34
Removing and installing
..................................... 35
Heated rear window
Switching off
................................................... 80
Switching on
................................................... 80
Height adjustment
Lowering the car
........................................... 191
Overview
...................................................... 190
Raising the car
.............................................. 191
Warning message on the multi-purpose display
... 192
High beam
Changing bulb
(additional high beam, Bi-Xenon headlights)
......... 331
Changing bulb (halogen headlights)
................... 330
Changing gas-discharge headlight
(Bi-Xenon headlights)
...................................... 330
Indicator light
....................................... 117
, 119
Installing headlights
........................................ 328
Removing headlights
...................................... 327
Stalk
........................................................... 106
Switch
......................................................... 106
Switching on/off
............................................ 104
High beam,additional
............................................... 331
High Range
................................................... 171
, 173
Selecting on-road driving program
.................... 178
High-pressure cleaning equipment, information on use
... 271
Hillholder (moving-off assistant for Tiptronic S)
............. 187
HomeLink (garage door opener)
Assigning a signal
.......................................... 243
Deleting programmed signals
.......................... 242
Functional description
..................................... 241
Operating
..................................................... 243
Synchronisation for changeable-code systems
.... 243
Horn
....................................................................... 58
Hot exhaust pipes
....................................................... 3
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