Porsche Cayman (2010 year). Manual

Brake booster

Brake wear

Brake pads and brake discs

The brake booster assists braking only when

Your car has excellent brakes, but they are still

Wear on the brake pads and brake discs depends

the engine is running.

subject to wear. The rate at which they wear de-

to a great extent on the driving style and the con-

pends on how the brakes are used.

ditions of use and therefore cannot be expressed

When the car is moving while the engine is not run-

in actual miles on the road.

ning, or if the brake booster is defective, more

f Have the brake system inspected at the

pressure on the brake pedal is required to bring

intervals recommended in your Maintenance

The high-performance brake system is designed

the car to a stop.

Booklet.

for optimal braking effect at all speeds and tem-

If this happens, ABS and PSM will also not oper-

peratures.

ate.

Brake system warning light

Certain speeds, braking forces and ambient

conditions (such as temperature and humidity)

Moisture or road salt on brakes affects braking.

You can check the functionality of the brake

therefore might cause “brake noises”.

Brakes will dry after a few cautious brake applica-

system warning light by switching the ignition to

tions.

the "On" position and verifying that the warning

New brake pads or linings

light illuminates.

Warning!

New brake pads and brake discs have to be “bro-

Warning light USA

ken in”, and therefore only attain optimal friction

Risk of an accident, resulting in serious per-

when the car has covered several hundred miles

sonal injury or death.

or km.

Driving through water may reduce the trac-

Warning light Canada

The slightly reduced braking ability must be com-

tion.

pensated for by pressing the brake pedal harder.

Moisture on brakes from road water, car

If the warning lights in the instrument panel and on-

This also applies whenever the brake pads and

wash, or coating of road salt may affect

board computer stay on when the engine is run-

brake discs are replaced.

braking efficiency.

ning or come on while driving, the brake pads are

worn excessively.

f Cautiously apply brakes to test brakes after ex-

posure to road water, etc.

f Do not continue to operate the vehicle.

Have your authorized Porsche dealer inspect

or replace the brake pads.

58 Operation, Safety

Warning!

Operation of the ABS system

ABS Brake System

(Antilock Brake System)

The increased control that is provided should

A wheel speed sensor is mounted to each of the

not induce you to take greater risks with your

four wheels. If wheel lock-up of either of the front

The ABS system represents a major contribution

safety. The limits dictated by the laws of

wheels or the rear wheels is sensed during brak-

to the enhancement of active safety in your vehi-

physics cannot be overcome, even with ABS.

ing, the brake pressure is adjusted automatically

cle. This system prevents the wheels from locking

The risk of accidents due to inappropriate

until the wheel no longer slips.

in a panic stop on almost all road surfaces.

speed cannot be reduced, even by the ABS.

The driver bears the responsibility for all

If braking forces approach the wheel lock-up point

With the ABS system in your vehicle, the

driving maneuvers.

for all wheels (panic braking) the ABS system will

following areas are enhanced:

intervene to provide a rapid rythmic braking. The

f Adapt your driving style to the prevailing road

Steering, vehicle remains steerable under all

proper operation of ABS is perceived by the driver

and weather conditions.

braking forces when ABS is engaged.

as a pulsating brake pedal in conjunction with au-

f Obey all traffic laws.

dible noise and perhaps some vibration.

Good directional control, no swerving caused

by locking of wheels under braking conditions.

Other vehicles not equipped with the ABS

f If you experience these sensations while driv-

system may not be able to maintain control,

ing or a road surface with questionable trac-

Shorter stopping distance, stopping distances

especially on wet or poor road surfaces and

tion, reduce vehicle speed appropriate for the

are usually reduced because controlled braking is

thus may be more likely to impact you from

prevailing road conditions.

maximized.

behind.

f If full braking should be necessary, press the

Prevention of wheel lock up, no brake- induced

f To minimize that risk, use your ABS system to

brake pedal all the way down throughout the

sliding and thus no localized tire wear from emer-

increase your ability to maneuver to avoid dan-

entire braking procedure, regardless of the pul-

gency braking.

gerous situations and not merely to try to stop

sating pedal. Do not ease up on pressure ap-

The crucial advantage of the ABS system over a

in the shortest distance possible.

plied to the pedal.

conventional brake system is in the area of main-

The functional readiness of all the main electrical

taining directional control and maneuverability of

components of the ABS is checked by an

the car in emergency situations.

electronic monitoring system both before and

while you drive.

Operation, Safety

Warning!

Warning light USA

Clutch Pedal

Risk of an accident, resulting in serious per-

The clutch pedal must be depressed fully

sonal injury or death.

Warning light Canada

before the starter will engage.

The control unit of the ABS brake system is

set for standard tire size. If non-standard

When the ignition is switched on the ABS warning

tires are installed, the control unit may mis-

Warning!

light will light up while the system is electronically

interpret the speed of the vehicle, because of

Risk of an accident, resulting in serious per-

interrogated and goes out when the engine is

the variant data it receives from the sensors

sonal injury or death.

started if the check is not yet complete.

on the axles.

If the ABS warning lamp fails to go out, this indi-

f Always check the movement of the clutch ped-

cates that ABS has been deactivated due to a

f Use only tire makes and types tested by

al before driving and make sure that it is not

fault. If the warning lights in the instrument panel

Porsche.

obstructed by a floor mat or any other object.

and on-board computer light up while you are driv-

f Secure the floor mat to prevent it from sliding

ing, this indicates that a fault has occurred. In both

into positions that could interfere with the safe

cases, normal braking, as in vehicles without ABS,

operation of your vehicle.

is still retained.

Your Porsche dealer will be glad to offer you

The ABS system should, however, be examined at

nonskid floor mats of the correct size.

an authorized Porsche dealer immediately to pre-

To avoid damage to the clutch and transmis-

vent the occurrence of further faults.

sion:

f If the ABS system becomes inoperative, take

f Always depress the clutch pedal fully when

your vehicle to your authorized Porsche dealer

changing gears.

immediately.

f Do 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.

f See your Porsche dealer for correction.

60 Operation, Safety

selection mode for vehicles with PDK transmis-

Sport Mode

sion).

A sportier car set-up is obtained when Sport mode

f Please observe the chapters on PSM, PASM

is switched on. Interventions by the Porsche

and PDK.

control systems are intentionally shifted towards

greater agility and driving performance:

Switching Sport mode on and off

PASM (Porsche Active Suspension Manage-

ment) is automatically changed to Sport mode,

Switching Sport mode on and off simultaneously

resulting in a stiffer suspension setup.

activates and deactivates the Sport mode in

PASM.

When Sport mode is active, the PDK transmis-

If PASM Sport mode was activated with the PASM

sion switches to a sporty gear-changing map

button, PASM remains active.

and shortens the gear shifting times. Gear

changes take place faster, but fuel consump-

After the ignition is switched off, Sport mode is

tion is also increased.

automatically reset to Normal mode.

PSM (Porsche Stability Management) control

gives a sportier road-feel to the vehicle. PSM

SPORT button

interventions take place later than in Normal

f Press SPORT button A in the center console.

mode. The driver can maneuver the vehicle

SPORT PLUS button

When Sport mode is switched on, the light-

with greater agility at its performance limits,

(only on vehicles with PDK transmission)

emitting diode in the SPORT button is lit.

without having to dispense with the assistance

In “Sport Plus” mode, the PDK transmission

of PSM in emergency situations. This helps to

A sporty gear-changing map is enabled and the

changes to a shift program designed for driving

achieve optimal lap times, particularly on race

gear shifting times are shortened for the PDK

on race circuits. 7th gear is not selected.

circuits with a dry road surface.

transmission.

The gear-changing performance is enhanced

A sporty driving style is recognized more quickly

The electronic accelerator pedal reacts

significantly again compared with “Sport” mode.

and the gear-changing speeds are adapted to

sooner, and the engine is more responsive to

f Please see the chapter “SPORT MODE

driving performance.

throttle inputs. When Sport mode is switched

(“SPORT” AND “SPORT PLUS” MODES)” on

on, this function is activated only after the

Deceleration downshifts are commenced earlier.

Page 180.

driver has floored the accelerator pedal or

Downshifts are made during slight decelerations,

released it briefly.

even at higher engine speeds.

f Press SPORT PLUS button B in the center

console.

The rpm limiter characteristic is “harder”, i.e.

f Please see the chapter “SPORT MODE

When Sport mode is switched on, the light-

the engine is immediately throttled when the

(“SPORT” AND “SPORT PLUS” MODES)” on

emitting diode in the SPORT PLUS button is lit.

performance limits are reached (only in manual

Page 180.

Operation, Safety

PSM uses these values to determine the direction

Examples of PSM control operations

Porsche Stability Management

of travel indicated by the driver.

(PSM)

PSM intervenes and helps to correct the course if

- If the front wheels of the vehicle drift on a

the actual direction of motion deviates from the

bend, the rear wheel on the inside of the bend

PSM is an active control system for stabilization of

chosen course (steering-wheel position):

is braked and the engine power is reduced if

the vehicle approaching the performance limits of

It brakes individual wheels as needed. In addition,

necessary.

driving maneuvers.

the engine power may be manipulated in order to

- If the rear of the vehicle swings out on a bend,

stabilize the vehicle.

Warning!

the front wheel on the outside of the bend is

The events below inform the driver of PSM control

braked.

Risk of an accident, resulting in serious per-

operations and warn him/her to adapt his/her

sonal injury or death.

driving style to the road conditions:

The increased control that is provided should

Additional braking functions

not induce you to take greater risks with your

The multifunctional information light on the

safety. The limits dictated by the laws of

- Pre-filling the brake system:

instrument panel flashes.

physics cannot be overcome, even with PSM.

The brake system is prepared for possible

Hydraulic noises can be heard.

subsequent emergency braking if the acceler-

The risk of accidents due to inappropriate

ator pedal is released suddenly and quickly.

speed cannot be reduced, even by PSM.

–

The vehicle decelerates and steering-wheel

The brake system is prefilled and the brake

The driver bears the responsibility for all

forces are altered as the PSM controls the

pads are already applied gently to the brake

driving maneuvers.

brakes.

discs.

f Adapt your driving style to the prevailing road

Reduced engine power.

- Brake booster:

and weather conditions.

The brake pedal pulsates and its position is

In the event of an emergency braking operation

f Obey all traffic laws.

changed during braking.

where the pedal force is insufficient, a brake

In order to achieve full vehicle deceleration,

booster provides the braking pressure neces-

Sensors at the wheels, brakes, steering system

foot pressure must be increased after the

sary for maximum deceleration at all 4 wheels.

and engine continuously measure:

brake pedal has begun vibrating.

- Speed

Advantages of PSM

- Direction of travel (steering angle)

- Best possible traction and lane-holding ability

- Lateral acceleration

in all driving situations - even on road surfaces

with varying friction.

- Rate of turn about the vertical axis

- Longitudinal acceleration

Operation, Safety

- The system compensates for undesired lateral

The following functions stabilize the vehicle in

vehicle reactions when the driver releases the

emergency situations, even with PSM switched

accelerator pedal or brakes when cornering.

off:

This compensation functions up to the

- When PSM is off, the vehicle is stabilized as

maximum lateral acceleration.

soon as one of the two front wheels enters the

- PSM actively stabilizes the vehicle as required

ABS control range.

during dynamic driving maneuvers (e.g. rapid

- When PSM is off and Sport mode is on, the

steering movements, during lane changes or

vehicle is stabilized as soon as both front

on alternating bends).

wheels enter the ABS control range.

- Improved braking stability on bends and on

One-sided spinning of the wheels is prevented,

different or varying road surfaces.

even with PSM switched off.

- It improves braking function and shortens

stopping distance in the event of emergency

Switching PSM back on

braking.

f Press PSM OFF button.

Readiness for operation

PSM is switched on after a short delay.

The light-emitting diode in the button and the

Switching off PSM

PSM is switched on automatically every time you

PSM multifunctional light on the instrument

start the engine.

panel go out.

f Press PSM OFF button.

PSM is switched off after a short delay.

The on-board computer shows a message.

PSM should always be switched on during

The light-emitting diode in the button is lit up.

“normal” driving.

When the PSM is switched off, the PSM multi-

However, it may be advantageous to switch off

functional light on the instrument panel is lit

PSM temporarily in exceptional situations, for

and a message is shown on the on-board

example:

computer.

- On a loose surface or in deep snow,

An acoustic signal also sounds.

- When “rocking” the vehicle free and

Note

– When using snow chains.

When PSM is switched off, the additional braking

functions are deactivated. Automatic reactivation

in emergency situations is linked to the PSM

control.

64 Operation, Safety

Sport mode

Please have the fault remedied at an author-

Towing

ized Porsche dealer.

A sportier car set-up is obtained when Sport or

f Please see the chapter “TOWING” on

Please see the chapter “PUTTING VEHICLE

Sport Plus mode is switched on.

Page 259.

INTO OPERATION” on Page

241.

PSM interventions are later than in Normal mode;

the vehicle can be maneuverd with greater agility

Checks on test stands

at its performance limits, without dispensing with

the assistance of PSM in emergency situations.

Brake tests

This helps to achieve optimal lap times, particu-

Brake tests must be performed only on plate-type

larly on race circuits and a dry road surface.

test stands or roller test stands.

The ignition must be switched off.

PSM multifunctional light

The following limit values must not be exceeded

- The multifunctional light on the instrument

on roller test stands:

panel lights up for a lamp check when the

ignition is switched on.

- Testing speed 5 mph (8 km/h)

- The light indicates a control operation by

- Test duration 20 seconds

flashing, including when PSM is switched off

(brake control in the event of one-sided wheel

Handbrake tests

spin).

Handbrake tests on the roller test stand must be

performed only with the ignition switched off.

- In conjunction with a message on the on-board

computer, the light indicates that PSM is

switched off.

An acoustic signal also sounds.

- The light indicates a fault in conjunction with a

message on the on-board computer.

PSM is out of order.

Operation, Safety

Porsche Active Suspension

Management (PASM)

PASM makes two running-gear setups available to

the driver: “Normal” and “Sport”.

The selection is made via a button on the center

console.

In Normal mode the running gear is in a comfort-

able setup.

Sport mode offers very sporty shock absorber

tuning.

The variable suspension system selects the appro-

priate damping level for each wheel according to

the situation and driving conditions.

Example:

If the vehicle is driven in a very sporty manner in

Normal mode, PASM automatically adapts the

Switching on PASM Sport mode

shock-absorber behavior to the driving situation

accordingly.

f Press PASM button in the center console.

When PASM Sport mode is switched on, the

light-emitting diode in the button is lit up and a

message is shown on the on-board computer.

Switching off PASM Sport mode

f Press PASM button in the center console.

The light-emitting diode in the button goes out

and the on-board computer displays a

message.

After the ignition is switched off, PASM is

automatically reset to Normal mode.

66 Operation, Safety

Rear Spoiler

Automatic control

Manual control

(automatic mode)

(manual mode)

The rear spoiler improves driving stability, espe-

cially at higher speeds.

The rear spoiler extends at approx. 75 mph

When the ignition is on, the rear spoiler can be

(120 km/h) and retracts again at approx. 50 mph

extended and retracted manually using the button

Warning!

(80 km/h).

in the center console.

Risk of accident, resulting in serious perso-

If the automatic control fails, the warning light

Note

nal injury or death.

lights up.

When the rear spoiler is extended manually, the au-

If the spoiler cannot be extended, driving sta-

tomatic control does not operate and the rear

bility will be adversely affected by increased

Warning light

spoiler must be manually retracted.

rear axle lift, which could lead to loss of con-

trol.

The warning light in the on-board computer lights

up when the rear spoiler does not extend over

f Adapt your driving style and speed to the

75 mph (120 km/h) or its end position is not

changed driving conditions.

reached.

f Have the fault remedied at an authorized

Porsche dealer.

Risk of injury during manual retraction or

extension of the spoiler with the vehicle

stationary.

f Make sure that no persons or objects are

within the range of movement of the rear

spoiler.

Risk of damage from pushing the vehicle by

the rear spoiler.

f Do not push the vehicle at the rear spoiler.

Operation, Safety

f at speeds between 20 and 60 mph

Fixed rear spoiler

(30 and 100 km/h):

Press button briefly.

Caution!

The rear spoiler retracts, the light-emitting

diode in the button goes out.

Risk of damage to rear spoiler.

The rear spoiler changes to automatic mode.

Please consult the operator before using auto-

f at speeds over 60 mph (100 km/h):

matic car washes.

Press button briefly.

Do not push the vehicle by the spoiler.

The rear spoiler remains extended, the light-

emitting diode in the button goes out.

The rear spoiler changes to automatic mode.

Manually retracting an extended rear spoiler

after switching on the ignition again

1. Press button briefly.

The light-emitting diode in the button lights up.

The rear spoiler is now in manual mode.

Extending

2. Press and hold button until the rear spoiler has

f Press button briefly.

reached its final position.

The spoiler extends to its final position.

The light-emitting diode in the button goes out.

The light-emitting diode in the button lights up.

The rear spoiler changes to automatic mode.

The rear spoiler remains extended even after

switching off ignition.

Retracting

f at speeds between 0 and 20 mph

(0 and 30 km/h):

Press and hold button until the rear spoiler has

reached its final position.

The light-emitting diode in the button goes out.

The rear spoiler changes to automatic mode.

68 Operation, Safety

Switching on lights

Orientation light

f Switch position 1.

The light-emitting diode in the interior light impro-

ves your orientation inside the vehicle when it is

Switching on driver’s side:

dark.

Interior lights on driver’s side, footwell and

luggage compartment lights on.

Note on operation

Switching on passenger’s side:

On vehicles with Sport Chrono Package Plus, the

Reading light on passenger’s side on.

brightness of the orientation light can be changed

in PCM.

Switching off lights

f Please see the chapter ”Individual Memory“ in

the separate PCM operating instructions.

f Switch position 2.

Switching off driver’s side:

Interior lights on driver’s side, footwell and

luggage compartment lights off.

Switching off passenger’s side:

A - Switch for interior, footwell and luggage compartment

Reading light on passenger’s side off.

lights

B - Orientation light

C - Reading light

Switching lights on and off automatically

f Switch position 0.

Interior lights

Lights are switched on when a door or rear lid

f Please see the chapter “LOAD SWITCH-OFF AF-

is unlocked or opened or when the ignition key is

TER 2 HOURS OR 7 DAYS” on Page 236.

withdrawn from the ignition lock.

The lights are switched off with a delay of ap-

prox. 2 minutes after the door is closed.

The lights go out immediately as soon as the igni-

tion key is inserted in the ignition lock or the vehic-

le is locked.

Operation, Safety

Note

Parking Aids

The sensors must always be kept free of dirt, ice

Parking assistant

and snow in order to ensure that they are fully

functional.

When the driver backs up, the parking assistant

system indicates the distance between the car

Caution!

and a large obstacle behind it, by means of signal

To avoid damaging the sensors:

tones.

f Maintain sufficient distance when cleaning with

Warning!

steam-jet units.

Risk of serious personal injury or death.

Parking assistant cannot detect small ob-

Signal tones/function

jects such as children and pets.

When reverse gear is selected, the parking

Despite use of the parking assistant system,

assistant confirms that it is switched on by issuing

the driver is still responsible for taking due

a short signal tone.

care and assessing obstacles when backing

A detected obstacle is signalled by an intermit-

up.

tent tone. The intervals decrease as the obstacle

Ultrasound sensors

f Make sure that no persons, especially small

is approached.

children, animals or obstacles are within the

A continuous tone sounds when the distance

Sensors

maneuvering area.

becomes less than one foot. This continuous tone

Four ultrasound sensors in the rear bumper meas-

can stop if the obstacle is approached closer than

The parking assistant system is activated auto-

ure the distance to the closest obstacle.

one foot.

matically when reverse gear is selected and the ig-

The radio volume should not be so loud as to

- Range middle sensors around 60 in./150 cm

nition is on.

drown out the signal tones.

- Range outer sensors around 24 in./60 cm

Note

Obstacles cannot be detected in the “blind” sen-

Be aware that the parking assistant system is

sor area (e.g. near the ground).

not switched on if the car rolls backward without

reverse gear being engaged.

70 Operation, Safety

Limits of ultrasonic measurement

Preconditions

The parking assistant system cannot detect:

- Vehicle must be equipped with seat memory.

- sound-absorbing obstacles (e.g. powder

- Set the control switch A to “passenger’s side”.

snow),

- Reverse gear must be engaged.

- sound-reflecting obstacles (e.g. glass surfac-

es, flat painted surfaces)

Returning mirror glass to its original position

- and very thin obstacles.

f Drive forwards with a speed of over 4 mph

(6 km/h) or

- Other ultrasound sources (e.g. pneumatic

brakes of other vehicles, jackhammers) can

f Set the control switch A to “driver’s side”.

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

A- Control switch for door mirror adjustment

tone of the same pitch:

This indicates that sensors are soiled or cov-

Swivelling down mirror glass as a parking

ered with ice.

aid

- After reverse gear has been selected, the

f Please see the chapter “SEAT MEMORY” on

short signal tone is followed by a continuous

Page 35.

tone with a much lower pitch:

This indicates a general system fault.

- When reverse gear is engaged, the mirror

Please have the fault remedied at an author-

glass on the passenger’s side swivels down

ized Porsche dealer.

slightly to show the curb area.

Operation, Safety

f Please see the chapter “KEY WITH RADIO RE-

Switch position 1

MOTE CONTROL” on Page 16.

Ignition on

Before starting the engine

f Turn ignition key to position 1.

Ignition is switched on.

f Apply the footbrake.

Note on operation

f Manual transmission:

Fully depress the clutch pedal and put the gear-

All electrical equipment can be switched on.

shift lever into neutral.

Please see the chapter “WARNINGS ON THE

The clutch pedal must be depressed fully

INSTRUMENT PANEL AND THE ON-BOARD

before the starter will engage.

COMPUTER” on Page 166.

f In vehicles with PDK transmission:

Move PDK selector lever to position P or N.

f Do not press the accelerator pedal.

Switch position 0

O - Initial position

1 - Ignition on

Initial position

2 - Start engine

The ignition key cannot be withdrawn when the

3 - Ignition off

ignition is switched on or when the engine has

been started.

Ignition/Starter Switch with

To withdraw the ignition key:

anti-theft Steering Lock

f Stop the vehicle.

The ignition lock has a total of four ignition lock po-

f In vehicles with PDK transmission:

sitions.

Move PDK selector lever to position P.

The ignition key rebounds to the initial position

from every ignition lock position.

f Switch ignition off.

f For your safety, fasten safety belts.

f Remove ignition key.

f Please see the chapter “IMMOBILIZER” on

Page 15.

72 Operation, Safety

Switch position 2

Locking the steering column

Automatic unlocking

The steering column is unlocked when the vehicle

Start engine

Automatic locking

is unlocked with the radio remote control.

f Turn ignition key to ignition lock position 2.

The steering column is automatically locked when

the ignition key is withdrawn from the ignition lock.

Note

f Please see the chapter “STARTING PROCEDU-

RES” on Page 75.

f To avoid discharging the battery, always re-

Warning!

move the ignition key from the ignition lock.

Please see the chapter “BATTERY” on

Switch position 3

Risk of an accident, resulting in serious per-

Page 239.

sonal injury or death.

Ignition off

The steering wheel will lock and will cause

loss of steering.

Gong

f Turn ignition key to ignition lock position 3.

f Never remove key from the ignition lock or turn

If you leave the key in the ignition/steering lock, a

Note on operation

the key off while the vehicle is moving.

gong will sound when the driver’s door is opened.

The vehicle battery discharges if the ignition key is

f Always withdraw the ignition key when

This is a reminder to remove the key.

left inserted.

leaving the vehicle.

If the vehicle battery is dead, the key can only be

pulled out of the ignition lock if the emergency

operation is performed:

f Please see the chapter “EMERGENCY OPERA-

TION - PULLING OUT THE IGNITION KEY” on

Page 74.

Operation, Safety

Emergency operation - pulling out the

3. Use metal hook A to remove the plastic lid B

4. Turn ignition key counter-clockwise as far as it

ignition key

from the ignition lock. Make sure that plastic lid

will go.

B is not lost.

5. Press metal hook A into opening C.

If the vehicle battery is dead, the key can be pulled

An unlocking sound will be heard.

out only if the emergency operation is performed.

6. Turn the ignition key to initial position (0) and

1. Grasp the fuse box cover at the finger hole and

remove.

pull it off.

7. Re-fit the plastic lid B.

2. Unclip metal hook A on the inside of the cover.

74 Operation, Safety

Porsche Cayman (2010 year). Manual - part 4