2009 PORSCHE PANAMERA brake sensor

Instrument Panel and Multi-Function Display
161
flashes
Fault Headlight controlHave the fault corrected at a qualified sp ecialist workshop.*Headlights adapted for
LHD/RHD Headlights have been changed for
countries with left/right-hand
trafficWiper defective Have the fault corrected at a qualified specialist workshop.*Tailgate Close the tailgate
Example:
Door open
Also:
Doors, engine compartment lidClose door/lid indicatedLaunch Control activated Lau
nch Control is activated.Distance! Please brake!Insufficient distance from vehicle in front.Fault ACC Adjust your speed and driving style.
Have the fault on the adaptive Cruise Control corrected at
a qualified specialist workshop.*Fault ACC sensor Adaptive cruise control: Sensor in the front of the vehicle may
be covered with dirt, snow, ice or affected by adverse weather
conditions.System fault One or more electrical systems may have failed.
Adjust your speed and driving style.
Have the fault corrected at a q ualified specialist workshop.*Fault
Instrument cluster/
ParkAssist sound Turn signal tones, acoustic
warning and distance signals
(e.g. for ParkAssist) are not available.
Please note this when parking. Have the fault corrected at
a qualified specialist workshop.*
Light in
instrument
panel
Warning message on multi-function
display Meaning/Action required

Driving and Driving Safety
187
Traffic situations in which vehicles are
not reliably detectedThe radar sensor for adaptive cruise control
scans a narrow, cone-shaped area in front of
your vehicle.
Detection can be limited or unreliable, depending
on the traffic situation and the size of the vehicle
in front. The system may brake too late or
unexpectedly. Stationary vehicles are not
detected. The system is unable to react to them.
Tip on driving
fDrive with extreme care.
f Slow down if necessary.
A – Vehicles changing lanes/cutting in
If a vehicle is changing la nes or cutting in ahead of
you in the same lane, th e vehicle will only be
detected when it has moved completely into your
lane.
B – Vehicles with a small cross-section/
narrow vehicles
Narrow or small vehicles will not be detected or
will be detected too late.
C – Driving into and out of corners
When driving into and out of corners, vehicles will
not be detected or will be detected too early, or
adaptive cruise control will react to vehicles in
adjacent lanes.

Driving and Driving Safety
203
Advantages of PSM
– Best possible traction and lane-holding ability
in all driving situations – even on road surfaces
with varying friction.
– The system compensates for undesired vehicle reactions (Ferraria effect) when the
driver releases the accelerator pedal or brakes
on bends. This compensation functions up to
the maximum lateral acceleration.
– PSM actively stabilises the vehicle if necessary during dynamic driving maneuvers (e.g. rapid
steering movements, during lane changes, or
on alternating bends).
– Improved braking stability on bends and on different or varying road surfaces.
– Improved brake function and shorter stopping distance in the event of emergency braking. Readiness for operation
PSM is switched on automatically every time you
start the engine.
Function
Sensors at the wheels, brakes, steering system
and engine continuously measure:
–Speed
– Direction of travel (steering angle)
– Lateral acceleration
– Axial acceleration
– Rate of turn about the vertical axis
PSM uses these values to determine the direction
of travel desired by the driver.
PSM intervenes and corrects the course if the
actual direction of motion deviates from the
desired course (steering-wheel position):
It brakes individual wheels as required.
If necessary, PSM also influences the engine
power or the gear-changing characteristic of
Porsche Doppelkupplung (PDK) in order to
stabilise the vehicle. The events below inform the driver of PSM control
operations and warn him to adapt his driving style
to the road conditions:
– PSM warning light on the instrument panel
flashes.
– Hydraulic noises can be heard.
– The vehicle decelerates and steering-wheel forces are altered as 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 engine power is reduced and the
rear wheel on the inside of the bend is braked
if necessary.
– If the rear of the vehicle swings out on a bend, the front wheel on the outside of the bend is
braked.

248
Alarm System and Theft Protection
Using the car key
f
Quickly press button on the remote control
twice .
The emergency flasher flashes slowly once.
The doors are locked but can be opened from
the inside by pulling on ce on the front door
opener or by pulling twice on the rear door
opener. On vehicles with Porsche Entry & Drive
f
Quickly press button A in the door handle
twice .
The emergency flasher flashes slowly once.
The doors are locked but can be opened from
the inside by pulling once on the front door
opener or by pulling twice on the rear door
opener.
Note on operation
The interior surveillance system and inclination
sensor remain switched off if:
– The interior surveillance system and inclination sensor were switched off when you last locked
the vehicle
and
the vehicle was locked automatically
30 seconds after unlocking because no door
was opened. Using the rocker switch
The rocker switch to switch off the passenger
compartment monitoring sy
stem is located next
to the driver’s seat.
1. Apply the electric parking brake.
2. Remove ignition key. On vehicles with Porsche Entry & Drive:
Switch off the ignition.
3. Open the driver‘s door.
4. Press the rocker switch. The rocker switch symbol lights permanently.
5. Lock the vehicle.

270
Maintenance and Car Care
High-pressure cleaning equipment
Warning!
High-pressure cleaning equipment can
damage the following components:
–Tires
– Logos, emblems, decorative foils
– Painted surfaces
– Alternator, valve covers
– ParkAssist sensors
– Radar sensor for adaptive cruise control
– Rearview camera
f Always read the operating instructions
provided by the equipment manufacturer.
f Always cover the lid of the brake fluid reservoir
prior to cleaning. Never point the cleaning jet
directly at the lid.
f When cleaning with a flat-jet nozzle or
a so-called “dirt blaster”. maintain a minimum
distance of 20 in. (50 cm).
f Never use high-pressure cleaning equipment
with a round-jet nozzle.
A high-pressure cleaning device fitted with
a round nozzle will damage your vehicle. The
tires are particularly susceptible to damage.
f Do not point the cleaning jet directly at any of the aforementioned components.
Decorative film
Caution!
Risk of damage due to separation of the
decorative film when using high-pressure
cleaning equipment.
f When cleaning components, the water must
not be hotter than 140 °F (60 °C) and the
pressure no greater than 580 psi (40 bar).
Always observe a minimum distance of 20 in. (50 cm).
Care of door lockfTo prevent the door lock from freezing
during the cold season, cover the lock barrel
with suitable adhesive tape while washing
the vehicle.
If the lock still freezes, use an ordinary de-icer.
In many cases, a well warmed key can help.
Never use excessive force.
Car washingThe best protection for the vehicle from the
damaging effects of the environment is frequent
washing and preservation.
The longer road salt, road dust, industrial dust,
insect remains, bird excrement, and tree sap,
resin, pollen, etc. are allowed to remain on the
bodywork, the more harmful their effect.
Observe the following poi nts in order to ensure
that the vehicle is washed thoroughly without
damaging the paintwork:
f The underside of the vehicle should also be
thoroughly washed at the end of the winter
season at the latest.
f Wash your vehicle only at sites provided for
this purpose to prevent soot, grease, oil and
heavy metals from entering the environment.
f Dark colors are slightly more susceptible
to scratching and require particularly careful
paint care.
Dark paints make even the smallest surface
blemishes (scratches) more conspicuous than
lighter colors.
f Do not wash your Porsche in direct sunlight
or when its body is hot.
f When washing by hand, use a car shampoo,
plenty of water, and a soft sponge or washing
brush.
We recommend Porsche car shampoo.

Maintenance and Car Care
271
fStart washing the vehicle by thoroughly
wetting the paintwork and rinsing the heavy
dirt off.
f After washing the vehicle, rinse it thoroughly
with water and rub it dry with chamois-leather.
Do not use the same chamois for rubbing
dry as you use for cleaning the windshield
and windows.
Warning!
Risk of accidents! Reduced or uneven
braking action may be caused by wet
brakes.
f After washing the vehicle, test the brakes
and steering and briefly brake the discs dry.
When doing so, make sure that vehicles travelling behind you are not affected. Cleaning in car washes
Optional add-on parts or parts that project beyond
the contours of the vehi
cle may be damaged by
design features of car washes.
The following parts are particularly at risk:
– Windshield wipers and rear wiper (always switch them off – wiper stalk in
position 0 – to prevent them wiping
unintentionally in intermittent or sensor
operation).
– Exterior mirrors (always fold in).
– External antenna (always unscrew).
– Roof transport system (always remove completely).
– Spoiler.
– Wheels (the wider the rim and the lower the tire height, the greater the risk of damage).
f Please consult the operator before using
automatic car washes.
f All parts not reached by a car wash, such
as door and lid seams or door sills, must
be washed and polished by hand.
Paint careIn order to protect the pa int on your vehicle in
the best possible way against mechanical and
chemical damage, you should
– preserve it regularly,
– polish it if necessary,
– remove spots and stains, and
– repair damaged paintwork.
General Notes
f Never rub a dusty vehicle with a dry cloth,
because the grains of dirt will damage
the paintwork.
f Do not treat matt-painted components with
preservatives or polishes as these remove
the matt effect.
Preservation
The paint surface becomes dull over time due
to weathering.
f Preserve paint regularly.
f Apply paint preservative after washing the
vehicle and polish it smooth to preserve
the paintwork.
This keeps the paint shin y and elastic. Dirt is
prevented from adhering to the paint surface and
industrial dust is prevented from penetrating
the paint.

274
Maintenance and Car Care
Cleaning headlights, lights, interior and
exterior plastic components, adhesive
foils, radar sensor for adaptive cruise
control and rearview cameraObserve the following points:
fUse only clean water and a little dishwashing
liquid or interior window cleaner to clean
headlights, lights, plastic components
and surfaces.
Use a soft sponge or a soft, lint-free cloth.
Note
An interior window cleane r can also be used to
clean plastic surfaces (always read the cleaning
instructions on the container!).
We recommend Porsche interior window cleaner.
f Gently wipe the surface without applying
too much pressure.
f Do not clean when dry.
f Never use other chemical cleaners
or solvents.
f Rinse cleaned surfaces with clear water.
Alloy wheelsMetal particles (e.g. brass or copper in brake
dust) must not remain too long on alloy wheels.
Contact corrosion can cause pitting.
Note
Cleaners with an oxide-removing effect or
wrong pH value, as are commonly used for
other metals, as well as mechanical tools and
products, will damage the oxide layer and are
therefore unsuitable.
fUse only cleaners for alloy wheels
(pH value 9.5). Products with the wrong
pH value can destroy the protective layer
on the wheels.
We recommend Porsche cleaner for light
alloy rims.
f If possible, wash the wheels every two weeks
with a sponge or washing brush. If the wheels
are exposed to road salt, grit or industrial dust,
weekly cleaning is necessary.
f Every three months, after cleaning, treat the
wheels with car wax or an acid-free grease
(e.g. Vaseline).
Rub the grease in well with a soft cloth.
f Please see the chapter “CLEANING IN CAR
WASHES” on page 271.
Danger!
Danger of accident resulting in serious
personal injury or death if cleaning agents
(e.g. wheel cleaning agents) come into
contact with the brake discs. The resulting
film on the brake discs can impair braking
performance.
f Make sure that no clea ning agent comes into
contact with the brake discs.
f If cleaning agent has come into contact with
the brake discs, clean the brake discs
thoroughly with a strong jet of water.
f Paying attention to any road users behind you, dry the brake discs by applying the brakes.
Stainless steel tailpipesStainless steel tailpipes can discolor due to
soiling, strong heat and combustion residues.
The original shine can be achieved again using
commercially available metal lustre paste or metal
polish.

Minor Repairs
299
Fuse box in left side of dashboardNo.Designation A
1 Steering column switch 7.5
2 Instrument cluster 7.5
3PCM 3.1 10
4 Additional instrument 5
5 Air conditioning, front + rear 10
6 Rearview camera 5
7 LHD, electric parking brake button 5
8 LHD, central locking for rear left
door
RHD, central locking for left doors 10
9 LHD, steering column adjustment 15
10 LHD, PDK control unit 25
11 Power windows, rear left 25
12 Power windows, front left 25
13 ParkAssist 5
14 Xenon headlight, left 15
15 Interior mirror,
LHD, diagnostic socket 5
16 LHD, PDK control unit,
clutch sensor
RHD, air conditioning, sun sensor 5
17 Not used
18 Not used
19 Not used
20 LHD, ignition lock control unit, light
switch 5
21LHD, central locking for front
left door
RHD, mobile phone charger 10
5
22 Steering column lock 5
23 Left-hand drive vehicles only:
Turn signal, rear right
Marker light, front left
Low beam headlight, right
High beam headlight, right
Side turn signals, front
Cornering light, front left
Ignition lock
Two-tone horns
PSM
Starter relay
Emergency flasher switch LED
Ignition lock lighting
Turn signal, front left/right
Footwell lights
Ignition lock anti-removal lock
Power steering control valves 30
No.
Designation A
24Left-hand drive vehicles only:
Turn signal, rear left
Marker light, front right
Low beam headlight, left
High beam headlight, left
Cornering light, front right
Engine compartment lid light
Shutter elements, right/left
Active brake ventilation
open/closed
Heatable washer jets
Engine compartment lid
Headlight beam adjustment 30
25 Left-hand drive vehicles only:
Steering column lock
Filler flap closed/open
Windshield washer pump,
front/rear 15
26 LHD, headlight cleaning system 30
27 Ignition coils 15
28 Not used
29 Oil level sensor, camshaft sensor 7.5
30 Oxygen sensors behind catalytic
converter 7.5
31 Electric control valves for engine 15
32 Engine control unit 20
33 Fan activation,
tank leakage detection 10
34 Valves for engine 10
35 Oxygen sensors ahead of catalytic
converter 10
No.
Designation A