2005 PORSCHE 911 CARRERA warning light

4Fuel QualityYour 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 recommends 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 Oktane™ knock control“ will adapt the ignition timing, if necessary.Fuels containing alcohol and etherSome areas of the U.S. require oxygenated fuels during certain portions of the year.
Oxygenated fuels are fuels which contain alcohols (such as methanol or ethanol) or ether (such as MTBE).
Under normal conditions, the amount of these compounds in the fuel will not affect driveability.
You may use oxygenated fuels in your Porsche, provided the octane requirements for your vehicle are met.
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.Fuels containing MMTSome North American fuels contain an octane enhancing additive called methylcyclopentadienyl manganese tricarbonyl (MMT).
If such fuels are used, your emission control system performance may be negatively affected.
The check engine warning lights on your instrument panel may turn on.
If this occurs, Porsche recommends you stop using fuels containing MMT.

7
Environmentally friendly vehiclesModern environmental technology ensures compli-
ance with all emission laws applicable worldwide.
These have the following advantages:
– Rapid operational readiness of the catalytic
converters ensures low emissions, even in
short-trip operation.
– Reliable operation and good emission control
over a long useful life.
fPlease refer to the chapter “FUEL ECONOMY”
on page 187.
Recycling – for a Porsche, this is virtually
an academic question More than two-thirds of all Porsches ever built are
still running.
Just in case recycling is ever necessary, we
take the following precautionary measures:
– Identification of all materials.
– Use of recyclable materials.
– Reusable components designed for simple
removal.
– These reasons result in a further increase in
the recycling rate which is currently 80 per
cent.
Emission control is built inInnovative engine technology combines high en-
gine performance and environmental compati-
bility.
The engine diagnosis system electronically moni-
tors the components and systems that affect ex-
haust gases.
This continuous monitoring and fault storage ena-
bles swift, reliable diagnosis and fault detection.
Any fault messages are indicated to the driver by
the ”Check Engine“ warning light and the on-board
computer.
fPlease refer to the chapter “WARNINGS ON
THE INSTRUMENT PANEL AND THE ON-
BOARD COMPUTER” on page 105.

Controls, Instruments
13 Controls, Instruments
Before driving off ......................................... 14
Break in hints .............................................. 16
Keys ........................................................... 19
Security Wheel Bolts.................................... 19
Doors ......................................................... 21
Central Lockin ............................................. 22
Alarm System,
Passenger Compartment Monitorin ............... 26
Power Windows ........................................... 28
Inside mirror ................................................ 30
Door Mirrors................................................ 30
Rear Window Defogger,
Door Mirror Heating ..................................... 33
Seat Adjustment .......................................... 34
Seat Memory ............................................... 36
Heated Seats .............................................. 38
Rear Seat Backrests.................................... 39
Steering Wheel Adjustment ........................... 39
Multi-Functional Steering Wheel ..................... 40
Sun Visors................................................... 41
Safety Belts................................................. 42
Child Restraint Anchorages ........................... 45
Child Restraint Systems ............................... 46
LATCH System
Child seat bracket on the passenger’s seat .... 48
Key-operated airbag deactivation device ........ 49
Airbag Systems ........................................... 50
Rollover Protection System........................... 52
Parking Aids ................................................ 53
Retractable Rear Spoiler............................... 56
Clutch Pedal ................................................ 58
Parking Brake .............................................. 58Brakes ........................................................ 59
ABS Brake System
(Antilock Brake System)................................ 62
Sport Mode ................................................. 64
Porsche Stability Management (PSM)............. 65
Porsche Active Suspension
Management (PASM) .................................... 68
Interior Lights .............................................. 69
Operation, Instruments ................................. 70
Ignition/Starter Switch with anti-theft
Steering Lock .............................................. 72
Starting Procedures ..................................... 74
Stopping Engine .......................................... 75
Instrument Panel USA Models ....................... 76
Instrument Panel Canada Models................... 78
Engine oil temperature ................................. 80
Automatic Speed Control Indicator light ......... 80
Instrument Illumination.................................. 80
Trip Odometer ............................................. 81
Speedometer .............................................. 82
Changing over between
Miles / Kilometers........................................ 82
Tachometer................................................. 83
Turn Signal Indicator Light ............................ 83
High Beam .................................................. 83
Cooling System ........................................... 84
Tiptronic ..................................................... 85
Fuel ............................................................ 86
Clock .......................................................... 87
Outside temperature .................................... 87
Engine Oil Pressure ...................................... 88
Check Engine Warning Light.......................... 89On-Board Computer (BC).............................. 90
Emergency Flasher Switch .......................... 112
Light Switch .............................................. 113
Welcome Home Lighting............................. 113
Automatic Headlight Beam Adjustment......... 114
Turn Signal / Headlight Dimmer /
Parking light / Flasher Lever ....................... 114
Windshield Wiper / Washer Lever ................ 115
Automatic Speed Control ............................ 118
Automatic Air Conditioning System .............. 120
Central and Side Vents ............................... 123
Fresh-air Intake .......................................... 123
Ashtray ..................................................... 124
Cigarette Lighter ........................................ 125
Cupholder ................................................. 126
Storage in the Passenger Compartment ...... 128
Luggage Compartment Lid and
Engine Compartment Lid ............................ 130
Luggage Compartment............................... 132
Trunk Entrapment ....................................... 133
Fire Extinguisher ........................................ 135
HomeLink .................................................. 136
Porsche Communication
Management (PCM) .................................... 139
Car Telephone and Aftermarket Alarms........ 142

Controls, Instruments
15
In the driver’s seat... fCheck operation of the horn.
fPosition seat for easy reach of foot pedals and
controls.
To reduce the possibility of injury from the
airbag deployment, you should always sit back
as far from the steering wheel as is practical,
while still maintaining full vehicle control.
fAdjust the inside and outside rear view mirrors.
fBuckle your safety belts.
fCheck operation of the foot and parking brake.
fCheck all warning and indicator lights with
ignition on and engine not running.
fStart engine and check all warning displays for
warning symbols.
fNever leave an idling car unattended.
fLock doors from inside, especially with chil-
dren in the car to prevent inadvertent opening
of doors from inside or outside.
Drive with doors locked.
On the road... fNever drive after you have consumed alcohol
or drugs.
fAlways have your safety belt fastened.
fAlways drive defensively.
Expect the unexpected.
fUse signals to indicate turns and lane changes.
fTurn on headlights at dusk or when the driving
conditions warrant it.
fAlways keep a safe distance from the vehicle in
front of you, depending on traffic, road and
weather conditions.
fReduce speed at night and during inclement
weather.
Driving in wet weather requires caution and re-
duced speeds, particularly on roads with
standing water, as the handling characteristics
of the vehicle may be impaired due to hydro-
planing of the tires.
fAlways observe speed limits and obey road
signs and traffic laws.
fWhen tired, get well off the road, stop and take
a rest. Turn the engine off. Do not sit in the ve-
hicle with engine idling.
Please observe the chapter “ENGINE EX-
HAUST” on Page 9.fWhen parked, always set the parking brake.
Move the Tiptronic selector lever to ”P“ or the
gearshift lever to reverse or first gear.
On hills also turn the front wheels toward the
curb.
fWhen emergency repairs become necessary,
move the vehicle well off the road. Turn on the
emergency flasher and use other warning de-
vices to alert other motorists. Do not park or
operate the vehicle in areas where the hot ex-
haust system may come in contact with dry
grass, brush, fuel spill or other flammable ma-
terial.
fMake it a habit to have the engine oil checked
after every fuel filling.

26
Controls, Instruments
A- Light-emitting diode for alarm systemAlarm System,
Passenger Compartment
MonitoringThis device complies with:
Part 15 of the FCC Rules
RSS-210 of Industry Canada.
Operation is subject to the following two condi-
tions:
1. This device may not cause harmful interfer-
ence, and2. this device must accept any interference re-
ceived, including interference that may cause
undesired operation.
Note
The manufacturer is not responsible for any radio
or TV interference caused by unauthorized modifi-
cations to this equipment.
Such modification could void the user’s authority
to operate the equipment.
Warning!
Any changes or modifications not expressly ap-
proved by Porsche could void the user’s authority
to operate this equipment.
The alarm system and passenger compartment
monitoring system are switched on when the
doors are locked with the key or remote control.
fPlease observe the chapter “CENTRAL LO-
CKING” on Page 22.
Unlocking the vehicle by using the key in the
door lock and opening the door may activate
the alarm system within 10 seconds.
Cabriolet
The passenger compartment monitoring system
is always switched off when the convertible top is
open,
Function indication If the alarm system is activated, light-emitting
diode A in the central locking switch flashes.
If, after locking, the light-emitting diode does not
flash or, after ten seconds, it emits double flash-
es, then not all alarm contacts are closed.
Additionally, a brief horn signal sounds.
When the doors are unlocked, the alarm system
and passenger compartment monitoring system
are switched off and the light-emitting diode goes
off.

28
Controls, Instruments
A - Power window in driver’s door
B - Power window in passenger’s door
C - Cabriolet: Switching button for front/rear power
windowsPower Windows
Warning!
Risk of injury when the door windows close.
This applies especially if the windows are
closed with the one-touch operation, be-
cause with this function the window goes up
automatically.
fMake sure nobody can be injured when the
windows close. fRemove the ignition key to shut off power to
the window switches when the vehicle is not
attended by a responsible person. Uninformed
persons could injure themselves by operating
the power windows.
fDo not leave children in the car unattended.
Risk of an accident.
fDo not put anything on or near the windows
that may interfere with the driver’s vision.
Readiness for operation of power windows – When the ignition is switched on
(engine switched on or off) or
– with doors closed and ignition key withdrawn,
but only until door is first opened.
One-touch operation for closing the door
windows is available only when the ignition is
switched on.
Cabriolet
When the convertible top is open, the rear side
windows can only be closed if the door windows
are closed.
Opening/closing windowsfFor the Cabriolet, select front or rear power
windows with rocker switch C.
The selection is displayed by the respective
light-emitting diode.
The two rocker switches in the driver’s door and
the switch in the passenger’s door have a two-
stage function:
Opening window with the rocker switch
fPress the rocker switch down to the first stage
until the window has reached the desired
position.
Closing window with the rocker switch
fPress the rocker switch upwards to the first
stage until the window has reached the desired
position.
One-touch operation
fPress the rocker switch upwards or
downwards to the second stage.
Window moves to its final position.
Press again to stop the window in the desired
position.
One-touch operation for closing the passenger’s
window is available once the window is approxi-
mately half-way closed.

Controls, Instruments
29
Comfort function when unlocking the vehicle
(Coupé only)
fUnlock car with the remote control.
Hold car key in door lock in the unlocking direc-
tion until the windows have reached the
desired position.
Anti-crushing protection If a side window is blocked during closing, it will
stop and open again by about an inch.
Warning!
Risk of severe personal injuries.
If the rocker switch is pressed again within
10
seconds of the window being blocked, the
window will close with its full closing force.
Anti-crushing protection is disabled.
fOnce the anti-crushing protection acts to stop
the window and opens it slightly, do not press
the rocker switch again within 10 seconds
without checking to make sure that nothing is
blocking the path of the window.The window will close with full closing force.
One-touch operation is disabled for 10 seconds
after blockage of a side window.
Automatic window lowering fPlease observe the chapter “DOORS” on
Page 21.Storing end position of the windowsIf the battery is disconnected and reconnected,
the windows will not be raised automatically when
the door is closed.
1. Close the windows with the rocker switch
once.
2. Press the rocker switch upwards again to store
the end position of the windows in the control
unit.

32
Controls, Instruments
A-Sensor
B- Switch for automatic anti-glare operation
C- Light-emitting diode Automatic Anti-Glare Interior
Mirror and Door Mirror Sensors on the front and rear sides of the interior
mirror measure the incident light.
The mirrors automatically change to anti-glare po-
sition or revert to their normal state, depending on
the light intensity.
When reverse gear is selected, automatic anti-
glare operation is switched off. Note
The incident light in the area of the sensors must
not be restricted, e.g. by stickers on the wind-
shield.
Switching off the automatic anti-glare
operation
fPress switch B.
Light-emitting diode C goes out.
Switching on the automatic anti-glare
operation
fPress switch B.
Light-emitting diode C lights up.
Warning!
Risk of injury. Electrolyte fluid can emerge
from a broken mirror glass.
This fluid irritates the skin and eyes.
fIf the electrolyte fluid should come into contact
with the eyes or skin, immediately rinse it off
with clean water.
See a doctor if necessary.
Risk of damage to the paintwork, leather and
plastic parts. Electrolyte fluid can be re-
moved only while it is still wet.
fClean the affected parts with water.