sensor PORSCHE 911 2009 5.G Owners Manual

12
Before driving off...1 Light switch, Page 80
2 Ignition/starter switch, Page 74
3 Turn signal/headlight dimmer,
flasher lever, Page 82
4 Operating lever for on-board computer,
Page 128
5Horn
6 Operating lever for automatic speed control,
Page 86
7 Wiper/washer lever, rear window wiper,
Page 83
8 Stopwatch, Page 138
9 Interior temperature sensor
10 Emergency flasher switch, Page 79
11 Central locking button, readiness display for
alarm system, Page 19
12 Cupholder, Page 88
13 Seat heating/Seat ventilation left/right,
Page 35
14 Operating panel for air conditioning, Page 108
15 Sport/Sport Plus program, Page 64
Rear spoiler, Page 69
Porsche Active Suspension Management
(PASM), Page 69
Porsche Stability Management
(PSM), Page 66
Sports exhaust system, Page 57

28
Operation, Safety
Folding in door mirrors
Warning!
Danger of injury to fingers if the mirror
accidentally flips back when being folded in.
fExercise extreme caution when folding in mir-
ror by hand. Do not let go of the mirror before
the locking lever is locked or the mirror is fully unfolded.1. Push mirror towards the door window and
continue to hold it (high spring force).
2. Swivel the locking lever up to the stop and
slowly let go of the mirror.
Unfolding door mirrors1. Push mirror towards the door window and
continue to hold it (high spring force). The
locking lever disengages automatically.
2. Move mirror back to unfolded position by hand.
Do not let go of the mirror beforehand.
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.

Operation, Safety
29
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
removed only while it is still wet.
fClean the affected parts with water. The mirror heater is ready for operation when the
ignition is on.
Switching on fPress button.
The light-emitting diode in the button lights up.
After approx. 15 minutes, the heater switches off
automatically.
The heater can be switched back on by pressing
the button again.Switching off fPress button.
The light-emitting diode in the button goes out.
Rear Window Defogger,
Door Mirror Heating

Operation, Safety
61
ABS Brake System
(Antilock Brake System)The ABS system represents a major contribution
to the enhancement of active safety in your vehi-
cle. This system prevents the wheels from locking
in a panic stop on almost all road surfaces.
With the ABS system in your vehicle, the
following areas are enhanced:
Steering, vehicle remains steerable under all
braking forces when ABS is engaged.
Good directional control, no swerving caused
by locking of wheels under braking conditions.
Shorter stopping distance, stopping distances
are usually reduced because controlled braking is
maximized.
Prevention of wheel lock up, no brake- induced
sliding and thus no localized tire wear from emer-
gency braking.
The crucial advantage of the ABS system over a
conventional brake system is in the area of main-
taining directional control and maneuverability of
the car in emergency situations.
Warning!
The increased control that is provided should
not induce you to take greater risks with your
safety. The limits dictated by the laws of
physics cannot be overcome, even with ABS.
The risk of accidents due to inappropriate
speed cannot be reduced, even by the ABS.
The driver bears the responsibility for all
driving maneuvers.
fAdapt your driving style to the prevailing road
and weather conditions.
fObey all traffic laws.
Other vehicles not equipped with the ABS
system may not be able to maintain control,
especially on wet or poor road surfaces and
thus may be more likely to impact you from
behind.
fTo minimize that risk, use your ABS system to
increase your ability to maneuver to avoid dan-
gerous situations and not merely to try to stop in the shortest distance possible.
Operation of the ABS systemA wheel speed sensor is mounted to each of the
four wheels. If wheel lock-up of either of the front
wheels or the rear wheels is sensed during brak-
ing, the brake pressure is adjusted automatically
until the wheel no longer slips.
If braking forces approach the wheel lock-up point
for all wheels (panic braking) the ABS system will
intervene to provide a rapid rythmic braking. The
proper operation of ABS is perceived by the driver
as a pulsating brake pedal in conjunction with au-
dible noise and perhaps some vibration.
fIf you experience these sensations while driv-
ing or a road surface with questionable trac-
tion, reduce vehicle speed appropriate for the
prevailing road conditions.
fIf full braking should be necessary, press the
brake pedal all the way down throughout the
entire braking procedure, regardless of the pul-
sating pedal. Do not ease up on pressure ap-
plied to the pedal.
The functional readiness of all the main electrical
components of the ABS is checked by an
electronic monitoring system both before and
while you drive.

62
Operation, Safety When the ignition is switched on the ABS warning
light will light up while the system is electronically
interrogated and goes out when the engine is
started if the check is not yet complete.
If the ABS warning lamp fails to go out, this indi-
cates that ABS has been deactivated due to a
fault. If the warning lights in the instrument panel
and on-board computer light up while you are driv-
ing, this indicates that a fault has occurred. In both
cases, normal braking, as in vehicles without ABS,
is still retained.
The ABS system should, however, be examined at
an authorized Porsche dealer immediately to pre-
vent the occurrence of further faults.
fIf the ABS system becomes inoperative, take
your vehicle to your authorized Porsche dealer
immediately.
Warning!
Risk of an accident, resulting in serious per-
sonal injury or death.
The control unit of the ABS brake system is
set for standard tire size. If non-standard
tires are installed, the control unit may mis-
interpret the speed of the vehicle, because of
the variant data it receives from the sensors
on the axles.
fUse only tire makes and types tested by Porsche.
Clutch Pedal The clutch pedal must be depressed fully
before the starter will engage.
Warning!
Risk of an accident, resulting in serious per-
sonal injury or death.
fAlways check the movement of the clutch ped-
al before driving and make sure that it is not
obstructed by a floor mat or any other object.
fSecure the floor mat to prevent it from sliding
into positions that could interfere with the safe
operation of your vehicle.
Your Porsche dealer will be glad to offer you
nonskid floor mats of the correct size.
To avoid damage to the clutch and transmis-
sion:
fAlways depress the clutch pedal fully when
changing gears.
fDo not hold the car on a steep grade with the clutch pedal partially depressed.
Should the free travel of the clutch pedal suddenly
become larger, it could mean a malfunction of the
clutch.
fSee your Porsche dealer for correction.
Warning light USA
Warning light Canada

66
Operation, Safety
Porsche Stability Management
(PSM)PSM is an active control system for stabilization of
the vehicle approaching the performance limits of
driving maneuvers.
Warning!
Risk of an accident, resulting in serious per-
sonal injury or death.
The increased control that is provided should
not induce you to take greater risks with your
safety. The limits dictated by the laws of
physics cannot be overcome, even with PSM.
The risk of accidents due to inappropriate
speed cannot be reduced, even by PSM.
The driver bears the responsibility for all
driving maneuvers.
fAdapt your driving style to the prevailing road
and weather conditions.
fObey all traffic laws.
Sensors at the wheels, brakes, steering system
and engine continuously measure:
–Speed
– Direction of travel (steering angle)
– Lateral acceleration
– Rate of turn about the vertical axis
– Longitudinal accelerationPSM uses these values to determine the direction
of travel indicated by the driver.
PSM intervenes and helps to correct the course if
the actual direction of motion deviates from the
chosen course (steering-wheel position):
It brakes individual wheels as needed. In addition,
the engine power may be manipulated in order to
stabilize the vehicle.
The events below inform the driver of PSM control
operations and warn him/her to adapt his/her
driving style to the road conditions:
– The multifunctional information light on the
instrument panel flashes.
– Hydraulic noises can be heard.
– The vehicle decelerates and steering-wheel
forces are altered as the PSM controls the
brakes.
– Reduced engine power.
– The brake pedal pulsates and its position is
changed during braking.
In order to achieve full vehicle deceleration,
foot pressure must be increased after the
brake pedal has begun vibrating.
Examples of PSM control operations– If the front wheels of the vehicle drift on a
bend, the rear wheel on the inside of the bend
is braked and the engine power is reduced if
necessary.
– If the rear of the vehicle swings out on a bend,
the front wheel on the outside of the bend is
braked.Additional braking functions– Pre-filling the brake system:
The brake system is prepared for possible
subsequent emergency braking if the acceler-
ator pedal is released suddenly and quickly.
The brake system is prefilled and the brake
pads are already applied gently to the brake
discs.
– Brake booster:
In the event of an emergency braking operation
where the pedal force is insufficient, a brake
booster provides the braking pressure neces-
sary for maximum deceleration at all 4 wheels.Advantages of PSM– Best possible traction and lane-holding ability
in all driving situations – even on road surfaces
with varying friction.

72
Operation, Safety
Parking Aids Parking assistantWhen the driver backs up, the parking assistant
system indicates the distance between the car
and a large obstacle behind it, by means of signal
tones.
Warning!
Risk of serious personal injury or death.
Parking assistant cannot detect small ob-
jects such as children and pets.
Despite use of the parking assistant system,
the driver is still responsible for taking due
care and assessing obstacles when backing
up.
fMake sure that no persons, especially small
children, animals or obstacles are within the maneuvering area.
The parking assistant system is activated auto-
matically when reverse gear is selected and the ig-
nition is on.
Note
Be aware that the parking assistant system is
not switched on if the car rolls backward without
reverse gear being engaged.
Ultrasound sensors Sensors
Four ultrasound sensors in the rear bumper meas-
ure the distance to the closest obstacle.
– Range middle sensors around 60 in./150 cm
– Range outer sensors around 24 in./60 cm
Obstacles cannot be detected in the “blind” sen-
sor area (e.g. near the ground). Note
The sensors must always be kept free of dirt, ice
and snow in order to ensure that they are fully
functional.
Caution!
To avoid damaging the sensors:
fMaintain sufficient distance when cleaning with steam-jet units.
Signal tones/function
When reverse gear is selected, the parking
assistant confirms that it is switched on by issuing
a short signal tone.
A detected obstacle is signalled by an intermit-
tent tone. The intervals decrease as the obstacle
is approached.
A continuous tone sounds when the distance
becomes less than one foot. This continuous tone
c a n s t o p i f t h e o b s t a c l e i s a p p ro a c h e d c l o s e r t h a n
one foot.
The radio volume should not be so loud as to
drown out the signal tones.

Operation, Safety
73
Limits of ultrasonic measurement
The parking assistant system cannot detect:
– sound-absorbing obstacles (e.g. powder
snow),
– sound-reflecting obstacles (e.g. glass surfac-
es, flat painted surfaces)
– and very thin obstacles.
– Other ultrasound sources (e.g. pneumatic
brakes of other vehicles, jackhammers) can
interfere with detection of obstacles.
Fault indication
The parking assistant system indicates a fault in
two ways:
– After reverse gear has been selected, the
short signal tone is followed by a continuous
tone of the same pitch:
This indicates that sensors are soiled or cov-
ered with ice.
– After reverse gear has been selected, the
short signal tone is followed by a continuous
tone with a much lower pitch:
This indicates a general system fault.
Please have the fault remedied at an author-
ized Porsche dealer.A
- Control switch for door mirror adjustment Swivelling down mirror glass as a parking
aidfPlease see the chapter “SEAT MEMORY” on
Page 33.
– When reverse gear is engaged, the mirror
glass on the passenger’s side swivels down
slightly to show the curb area. Preconditions
– Vehicle must be equipped with seat memory.
– Set the control switch A to “passenger’s side”.
– Reverse gear must be engaged.
Returning mirror glass to its original position
fDrive forwards with a speed of over 4 mph
(6 km/h) or
fSet the control switch A to “driver’s side”.

Operation, Safety
77
Starting Procedures fPlease see the chapter “IMMOBILIZER” on
Page 15.
fPlease see the chapter “EMISSION CONTROL
SYSTEM” on Page 218.
Warning!
Serious injury or death may result if you are
involved in a collision without having fas-
tened the safety belts.
fFasten safety belts before driving away. Before starting the engine fApply the footbrake.
fManual transmission:
Move the gearshift lever into neutral.
The clutch pedal must be depressed fully
before the starter will engage.
fIn vehicles with PDK transmission:
Move PDK selector lever to position P or N.
Temperature sensors on the engine automatically
provide the correct fuel/air mixture required for
starting.
Therefore, it is not necessary to depress the
accelerator pedal while starting a cold or a
warm engine.
Starting the enginefTurn ignition key to ignition lock position 2.
fAs soon as the engine starts, release the igni-
tion key.
The first operation of the starter is ended automat-
ically when the engine starts.
If the engine does not start, subsequent starter
operations will not be ended automatically.
If the engine fails to start after 10 or 15 seconds
of cranking:
fWait about 10 seconds before engaging the
starter again.
fWhen starting the engine, be ready to drive
immediately.
Drive vehicle at moderate speeds and avoid
engine speeds above 4,200 rpm during the
first 5 minutes.
fDo not let the engine idle to warm up.
Danger!
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.
An unattended vehicle with a running engine
is potentially hazardous.
If warning lights should come on to indicate
improper operation, they would go unno-
ticed.
fNever leave the engine idling unattended.
Danger of fire.
fDo not park or operate the vehicle in areas
where the hot exhaust system may come in
contact with dry grass, brush, fuel spill or oth-
er flammable material.
fIf your car catches on fire for any reason, call
the fire department.
Do not endanger your life by attempting to put
out the fire.
Risk of burn injury when standing near or
coming into contact with the exhaust pipe.
The exhaust pipe is hot when the vehicle is running
and remains hot for some time after the vehicle is
turned off.
fTo prevent injury, make a point of noting where
your vehicle’s exhaust pipe is, avoid placing
your legs near the exhaust pipe, and closely
supervise children around the vehicle when the
exhaust pipe could be hot.
A hot exhaust pipe can cause serious burns.

Operation, Safety
83
Windshield Wiper / Washer Lever
Warning!
Danger of injury when the windshield wipers
operate unintentionally, e.g. in intermittent
or rain sensor operation.
Risk of damage to the windshield and wiper
system.
fAvoid running the wiper blades over a dry wind-
shield to prevent scratching the glass. Spray
washer fluid on the windshield first.
A scratched windshield will reduce visibility.
fAlways loosen wiper blades from frozen glass
before operating wipers to prevent damage to
the wiper motor or blades. fAlways switch off windshield wipers in car
wash to prevent them wiping unintentionally
(intermittent or sensor operation).
fAlways switch off windshield wipers before
cleaning the windshield to avoid unintentional
operation (intermittent or sensor operation).
fDo not operate the headlight washer in car
washes.
fDo not operate headlight washer when it is
frozen.
Front wiper and headlight washer system0 – Windshield wipers off
1 – Rain sensor operation for front
windshield wipers
fMove wiper lever upwards to the first click.
Please see the chapter “RAIN SENSOR” on
Page 85.
2 – Windshield wipers slow
fMove wiper lever upwards to the second click.
3 – Windshield wipers fast
fMove wiper lever upwards to the third click.
4 – Front windshield wiper – one-touch oper-
ation:
fMove wiper lever downwards. The front wind-
shield wipers wipe once.5 – Windshield wipers and washer system:
fPull wiper lever towards the steering wheel.
The washer system sprays and wipes while the
lever is pulled towards the steering wheel.
When the wiper lever is released, a few drying
wipes are executed.
A - Headlight washer:
The washer sprays only while low beam or high
beam is switched on.
fBriefly push button A to operate headlight
washer system.
fIf heavily soiled, repeat wash.
The headlight washer system automatically sprays
once for every ten times the front windshield
washer system is operated.
Note
The windshield washer nozzles are heated
when the ignition is on, as a precaution against
freezing.