2010 PORSCHE 911 GT3 engine

78
Operation, Safety
A- Automatic speed control readiness off/on
1-+SPEED/SET (accelerate/store)
2-–SPEED (decelerate)
3- OFF (interrupt)
4-RESUMEAutomatic Speed Control The automatic speed control maintains any
selected speed between 15 mph and 145 mph
(30 km/h and 240 km/h) without you having to
use the accelerator pedal.
The automatic speed control is operated with the
lever on the steering wheel.
Warning!
Risk of accident resulting in serious personal
injury or death. A constant speed may not be
safe in heavy traffic, or on winding or
slippery roads.
With the speed control system engaged, the
engine speed will not return to idle when
removing the foot from the accelerator
pedal.
fDo not use the speed control when it may be
unsafe to keep the car at a constant speed.
fObserve all local and national speed limits. Switch automatic speed control
readiness onfPress button A on the automatic speed control
lever.
Hold and store speed fBring the car to the desired speed with the
accelerator.
fThen briefly push the operating lever forward
(position 1).Accelerating (e.g. to overtake) Option 1
fIncrease the speed as usual with the
accelerator.
When you ease off the accelerator, the
previously saved value is set again.
Option 2
fPush operating lever forward (position 1) until
the desired speed is reached.
The speed reached is maintained and stored
when the lever is released.
Option 3
fPush lever slightly forwards (position 1)
(a maximum of 10 times).
The speed is increased by 1 mph (1.6 km/h),
each time the lever is pushed forwards.
Note on operation
Speed control operation is automatically inter-
rupted if the speed is increased by more than
approx. 16 mph (25 km/h ) for longer than
20 seconds.
This green indicator light in the
speedometer now indicates readiness
10_GT3_21.book Seite 78 Donnerstag, 4. Juni 2009 12:48 12

Operation, Safety
79
Decelerating Option 1
fPull operating lever towards the steering wheel
(position 2) until the desired speed is reached.
The speed reached is maintained and stored
when the lever is released.
Option 2
fBriefly move lever towards the steering wheel
(position 2) (a maximum of 10 times).
The speed is reduced by 1 mph (1.6 km/h),
each time the lever is moved towards the
steering wheel.
Interrupting automatic speed control
operation fPull operating lever downwards briefly
(position 3) or
fOperate brake or clutch pedal.
The speed driven before the interruption remains
stored in the memory.
Automatic speed control operation is inter-
rupted automatically:
– If the set vehicle speed is exceeded by more
than approx. 16 mph (25 km/h) for longer than
20 seconds.
– If the actual vehicle speed falls to approx.
37 mph (60 km/h) below the set vehicle speed
for longer than 60 seconds (upward slopes).
– For PSM control operations.
Resuming the stored speed fBriefly push operating lever upwards
(position4).
The speed control accelerates/decelerates
the vehicle to the stored speed.
The stored speed should only be recalled when
traffic conditions and the road surface so permit.Switching automatic speed control readi-
ness off fPress button A on the automatic speed control
lever.
The green readiness light in the speedometer
goes off.
Note
The stored speed value is cleared when the
vehicle is parked and the ignition is switched off.
Important note
On upward or downward slopes, the set speed
cannot always be maintained by the automatic
speed control.
fTo obtain sufficient engine braking or a better
engine-speed range, a lower gear needs to be
selected.
10_GT3_21.book Seite 79 Donnerstag, 4. Juni 2009 12:48 12

Operation, Safety
85
A - Opening luggage compartment lid
B - Opening engine compartment lid Luggage Compartment Lid and
Engine Compartment LidUnlocking fOperate the appropriate pull-button next to the
driver’s seat.
The luggage compartment or engine compart-
ment is illuminated when the respective lid is
open.
fPlease see the chapter “LOAD SWITCH-OFF
AFTER 2 HOURS OR 7 DAYS” on Page 208.The luggage compartment lid can also be
unlocked with the radio remote control.
fPlease see the chapter “KEYS” on Page 18.
Important Note
If the vehicle battery is discharged, the luggage
compartment lid can be opened only by connec-
ting an external electrical power source.
fPlease see the chapter “EMERGENCY
UNLOCKING OF THE LUGGAGE COMPART-
MENT LID” on Page 210.
or the description inside the fuse box lid.
A warning message in the on-board computer
comes on if the lids are not completely closed.
fFully close the lid.
Warning message
10_GT3_21.book Seite 85 Donnerstag, 4. Juni 2009 12:48 12

86
Operation, Safety
Opening luggage compartment lid
Caution!
Risk of damage to luggage compartment lid
or windshield wipers.
fMake sure that the windshield wipers are not
folded out forwards when opening the luggage compartment lid.
fRaise lid slightly and unlatch the safety catch
with the lever (arrow).
Closing luggage compartment lid and
engine compartment lid fLower the lid and close it.
fPush the lid closed with the palm of your hand
in the area of the lock.
Check that the lid has correctly engaged in the
lock.
Warning!
Risk of loss of control or an accident, resul-
ting in serious personal injury or death.
fShould you notice at any time while driving that
one of the lids is not secured properly, please
stop immediately in a suitable place and close
it. The front lid may fly up impairing vision.
Luggage CompartmentAccess cover A
Caution!
Risk of injury or damage.
fDo not store any objects behind the access cover A.
10_GT3_21.book Seite 86 Donnerstag, 4. Juni 2009 12:48 12

92
Operation, Safety If aftermarket systems are installed by non-dealer-
ship technicians or outside the selling dealer,
problems may result. Installation of aftermarket
equipment is not covered under the New Car
Warranty.
fConsult your authorized Porsche dealer about
the installation of non Porsche approved equip-
ment.
Reception quality
The reception quality of your car telephone will
change constantly when you are driving. Interfe-
rence caused by buildings, landscape and
weather is unavoidable. It may become particu-
larly difficult to hear when using the hands-free
function due to external noise such as engine and
wind noise.
Automatic car-wash
fUnscrew external antennas before using an
automatic car-wash.
10_GT3_21.book Seite 92 Donnerstag, 4. Juni 2009 12:48 12

100
Automatic air conditioning system, Heated rear window/Door mirror heating Switching recirculating-air setting on or off
fPress button E.
The outside-air supply is interrupted and only
the inside air is circulated.
The light-emitting diode in the button lights up.
Over approx. 37 °F/3 °C
If the air-conditioning compressor was off, it
switches on automatically. The duration of recircu-
lating-air setting is not limited.
Below approx. 37 °F/3 °C
The air-conditioning compressor is switched off.
Recirculating-air setting is automatically ended
after approx. 3 minutes.
Air distributionThe individual air distributions can be combined as
desired.
Recommended setting in Summer:
Air distribution to central and side vents.
Recommended setting in Winter:
Air distribution to footwell and windshield.fPress button H.
The air flows to the footwell.
The selection appears on the display panel.
fPress button I.
The air flows from the central and side vents.
Vents must be open.
The selection appears on the display panel.
fPress button J.
The air flows to the windshield.
The selection appears on the display panel.
Note on operation
fOn vehicles with the Sport Chrono Package
Plus, individual air conditioning settings can be
stored on your vehicle key.
Please see the chapter “Individual Memory” in
the separate PCM Owner’s Manual.
General instructions for air-conditioning
compressor– Can switch off briefly if engine is under an
extreme load to ensure sufficient engine
cooling.
– Switches off automatically at temperatures
below approx. 37 °F/3 °C and cannot be
switched on, even manually.
– Operates most effectively with windows
closed.
If the car has been in the sun for a long time, it
is a good idea to ventilate the interior briefly
with the windows open.
– Depending on the outside temperature and
humidity, condensation can drip from the
evaporator and form a pool under the vehicle.
This is normal and not a sign of leakage.
– If uncooled air flows out when the lowest
temperature has been set, switch off the air-
conditioning compressor and have the fault
repaired at an authorized Porsche dealer. Air distribution to footwell
Air distribution to central and side
vents
Air distribution to windshield
10_GT3_21.book Seite 100 Donnerstag, 4. Juni 2009 12:48 12

Instruments, On-Board Computer, Warnings
103 Instruments, On-Board Computer, Warnings
Instrument Panel USA Models...................... 104
Instrument Panel Canada Models ................. 106
Engine Oil Temperature .............................. 108
Automatic Speed Control Indicator light ....... 108
Instrument Illumination................................ 108
Trip Odometer ........................................... 109
Speedometer ............................................. 110
Changing over between Miles / Kilometers ... 110
Tachometer ............................................... 111
Turn Signal Indicator Light .......................... 111
High Beam Indicator Light ........................... 111
Upshift indicator ......................................... 111
Cooling System.......................................... 112
Fuel........................................................... 113
Clock ........................................................ 114
Outside Temperature.................................. 114
Engine Oil Pressure .................................... 115
Check Engine (Emission Control) ................. 116
On-Board Computer (BC)............................. 117
Warnings on the instrument panel and the
on-board computer ..................................... 148
10_GT3_21.book Seite 103 Donnerstag, 4. Juni 2009 12:48 12

104
Instruments, On-Board Computer
Instrument Panel USA Models Also refer to the corresponding chapters in
the Owner’s Manual.
1.Engine oil temperature gauge
2.Speedometer with analogue display
3.Tire pressure warning light
4.Turn signal indicator light, left
5.Tachometer
6.High beam indicator light
7.Turn signal indicator light, right
8.Upshift indicator
9.Cooling system
Temperature gauge, warning light
10.Fuel
Level gauge, warning light
11.Engine oil pressure gauge
12.Adjustment button for instrument illumination
and trip counter
13.Odometer and daily trip mileage display
14.Automatic speed control indicator light15.Light sensor for instrument illumination
16.Airbag warning light
17.Check Engine warning light
(Emission control warning light)
18.Central warning light
19.On-board computer display
20.Porsche Stability Management
PSM Multifunctional light
21.Brake warning light
22.Safety belt warning light
23.ABS warning light
24.Clock and outside temperature display
25.Adjustment button for clockWhen the ignition is switched on, the warning
lights light up for a lamp check.
Note
Warnings that have been given are stored in the
appropriate control unit memory and can be read
out at an authorized Porsche dealer.
This information can help to warn you about situa-
tions which may be hazardous to you or your car. 10_GT3_21.book Seite 104 Donnerstag, 4. Juni 2009 12:48 12