9
Engine Exhaust
Danger!
Engine exhaust is dangerous if inhaled.
Engine exhaust fumes have many compo-
nents which you can smell. They also contain
carbon monoxide (CO), which is a colorless
and odorless gas.
Carbon monoxide can cause unconscious-
ness and even death if inhaled.
fNever start or let the engine run in an en-
closed, unventilated area.
It is not recommended to sit in your car for pro-
longed periods with the engine on and the car not moving.
Ground ClearancePlease bear in mind the limited ground clearance
of your car on uneven surfaces, when parking
(curbs), on ramps, lifting platforms, towing etc.
62
Controls, Instruments
Brake tests Brake tests must be performed only on plate-type
test stands or roller test stands.
The following limit values must not be exceeded
on roller test stands:
– Testing speed 5 mph (8 km/h)
– Test duration 20 seconds Handbrake tests Handbrake tests on the roller test stand must be
performed only with the ignition switched off. Balancing wheels on the vehicle During finish balancing of the wheels, the vehicle
must be hoisted and all the wheels able to rotate
freely. Towing fPlease observe the chapter “TOWING” on
Page 281.
74
Controls, Instruments The following functions stabilize the vehicle in
emergency situations, even with PSM switched
off:
– When PSM is off, the vehicle is stabilized as
soon as one of the two front wheels enters the
ABS control range.
– When PSM is off and Sport mode is on, the
vehicle is stabilized as soon as both front
wheels enter the ABS control range.
One-sided spinning of the wheels is prevented,
even with PSM switched off.
Switching PSM back onfPress PSM OFF button.
PSM is switched on after a short delay.
The light-emitting diode in the button and the
multifunctional PSM light go out.
The on-board computer shows a message.Sport modeA sportier car set-up is obtained when Sport mode
is switched on. PSM interventions are later than in
Normal mode; the vehicle can be manoeuvred
with greater agility at its performance limits,
without the need to dispense with the assistance
of PSM in emergency situations. This helps to
achieve optimal lap times, particularly on race
circuits and a dry road surface.– The multifunctional light on the instrument
panel lights up for a lamp check when the
ignition is switched on.
– The light indicates a control operation by
flashing, including when PSM is switched off
(brake control in the event of one-sided wheel
spin).
– In conjunction with a message on the on-board
computer, the light indicates that PSM is
switched off.
An acoustic signal also sounds.
– Faults are displayed by the light in conjunction
with a message on the on-board computer.
PSM is out of order.
fPlease consult an authorized Porsche dealer.
fPlease observe the chapter “PUTTING
VEHICLE INTO OPERATION” on Page 261.
fPlease observe the chapter “WARNINGS ON
THE INSTRUMENT PANEL AND THE ON-
BOARD COMPUTER” on Page 122.
TowingfPlease observe the chapter “VEHICLE
TOWING” on Page 281.Checks on test standsBrake tests
Brake tests must be performed only on plate-type
test stands or roller test stands.
The following limit values must not be exceeded
on roller test stands:
– Testing speed 5 mph (8 km/h)
– Test duration 20 seconds
Handbrake tests
Handbrake tests on the roller test stand must be
performed only with the ignition switched off.
Multifunctional PSM light
Controls, Instruments
97
The warning light in the instrument panel comes
on when the ignition is first turned on and remains
on briefly as a bulb check. If the light does not
come on, have the bulb replaced promptly.
If the warning lights in the instrument panel and on-
board computer come on and remain on while
driving, it suggests:
– a potential engine control problem and the
need for system service or
– an improperly fastened tank cap or
– refuelling with engine running.
Although the vehicle is usually driveable and will
not require towing, see your dealer for service as
soon as possible.
Caution!
If the Check engine light in the instrument
panel is flashing, severe catalytic converter
damage and power loss will soon occur.
Prolonged driving with the Check engine light
on could cause damage to the emission con-
trol system. It also could affect fuel economy
and driveability.
fHave the fault remedied at the nearest author-ized Porsche dealer immediately. The central warning light on the instrument panel
lights up if there are warning messages in the
INFO menu.
The messages can be called in the on-board
computer INFO menu:
fPlease observe the chapter “INFO WARNING
MESSAGES” on Page 102.
The warning light on the instrument panel lights
up:
– if the handbrake is on,
– if the brake fluid level is low,
– if the brake pads have reached the wear limit,
– if the brake circuit division is defective.
Additionally, a warning is displayed by the on-
board computer.
fPlease observe the chapter “WARNINGS ON
THE INSTRUMENT PANEL AND THE ON-
BOARD COMPUTER” on Page 122.
Check Engine
Warning Light
Central warning light
Brake warning light USA
Brake warning light Canada
150
Controls, Instruments
Luggage Compartment
(911 Carrera, 911 Carrera S)Access covers(on vehicles with DVD navigation or CD changer)
Opening
fGrasp access cover A or B at the handle and
open.
The drive for DVD navigation and the CD changer
can be found behind the access cover B.
Caution!
Risk of damage.
fDo not store any heavy, damp or heat-sensitive objects behind the access covers.
Tool boxOpening
fUnlock turn-locks C.
fOpen tool box and place it on the floor of the
luggage compartment.
E- Adapter for security wheel bolts
F- Tire filling compressor
G-Towing hook
H-Tool kit
I-Tire sealantClosing
fInsert tool box into the guide pegs in the
luggage compartment floor.
fClose tool box and lock the turn-locks C.
Controls, Instruments
151
Luggage Compartment
(911 Carrera 4, 911 Carrera 4S)The position of the components in the luggage
compartment are dependent on the country equip-
ment and can vary from what is shown in this
manual.DVD navigationThe drive for DVD navigation and the audio ampli-
fier are on the rear wall of the luggage compart-
ment.
Caution!
Risk of damage.
fDo not store any objects behind the access cover A.
Tire sealantThe tire sealant is located behind the access
cover B.
fOpen access cover B using the opening.ToolsThe tools are located under the floor plate of the
luggage compartment.
fLift the floor plate on the opening and take out.
B- Access cover for tire sealant
C- Tire filling compressor
D-Tool kit
E- Towing lug
F- Adapter for security wheel bolts
Shifting Gears
167
Selector Lever PositionsP – Parking lockfEngage parking lock only when vehicle is sta-
tionary.
fEngage parking lock after applying the hand-
brake and release it before releasing the hand-
brake.
The ignition key can be withdrawn only in selec-
tor lever position P.R – Reverse gearfSelect only if car is stationary and the brake is
applied.N – NeutralSelector lever position N must be selected for
towing or in car washes, for example.
fOnly select the desired position for moving off
(D, M or R) when the engine is idling and the
brake pedal is depressed.
D - Automatic selection modeSelect position D for “normal” driving. The gears
are shifted automatically according to the acceler-
ator position and speed.
Depending on the way the vehicle is driven and on
the resistance (e.g. uphill), the gear-changing
points are shifted towards higher or lower engine-
speed ranges.
The accelerator position, driving speed, engine
speed, longitudinal and lateral acceleration and
the road profile all have an influence on the gear-
changing characteristic.
Unwanted upward shifts, e.g. before bends, are
prevented by swiftly releasing the accelerator ped-
al.
Depending on lateral acceleration, upward chang-
es on bends are not made until the engine-speed
limit is reached.
Under braking, and depending on the amount of
deceleration, the Tiptronic changes down earlier.
For subsequent cornering, the right gear is en-
gaged when pressure is applied to the brakes be-
fore the bend. The bend is taken in the right gear,
and when you accelerate out of the bend you do
not have to shift down.Sport mode switched on
fPlease observe the chapter “SPORT MODE” on
Page 71.
If the Sport mode program is switched on,
Tiptronic switches to a sporty gear-changing map
and shortens the shifting periods.
Deceleration downshifts are commenced earlier.
Downshifts are already carried out in the case of
slight decelerations, even at higher engine
speeds.
Driving off
In 2nd gear, the vehicle moves off with the throt-
tle only slightly open.
Move off in 1st gear with the throttle open wider
or when the engine is cold.
170
Shifting Gears
StoppingfFor a brief stop (e.g. at a traffic light), leave the
selector lever in drive position and hold the ve-
hicle with the brake pedal.
fFor a longer stop with the engine running, se-
lect position N (neutral) and hold vehicle in po-
sition with the foot brake.
Select lever position D only when the foot
brake pedal is depressed.
fDo not hold the car on a slope using the
accelerator. Use the brake pedal or the hand-
brake instead.
fBefore leaving the vehicle, always apply the
handbrake and move the selector lever to po-
sition P.
ParkingfGo easy on the accelerator!
fWhen parking or maneuvering in a small
space, control the speed by careful use of the
footbrake.Driving in winterIn wintry road conditions it is advisable to take
steep inclines in manual mode. This prevents the
occurrence of gear changes that could cause
wheelspin.Tow-starting, towingfPlease observe the chapter “TOWING” on
Page 281.Reduced driving programA transmission fault is indicated by the following
symptoms:
–The 4th gear display on the instrument clus-
ter flashes.
– The warning “Tiptronic emergency run” ap-
pears on the on-board computer.
– The transmission no longer shifts.
Warning!
Reverse gear lock monitoring is disabled in
the emergency running program.
Damage to the vehicle may result as well as
loss of control, if the vehicle is moving for-
ward fast enough to cause rear wheel lockup.
fDo not shift into R while the vehicle is moving forward.
Proceed as follows in the event of a transmission
fault:
1. Stop in a safe place.
2. Move selector lever to position P, switch the ig-
nition off and wait for 10 seconds.
3. Start the engine.
2nd gear in selector position D and reverse
gear R are now available.
4. Have the fault seen to immediately at an au-
thorized Porsche dealer.