Porsche Cayman (2010 year). Manual

If the selector lever is inadvertently (due to

If there is a fault in the transmission:

a defect or incorrect operation) moved out of P or

The warning “Transmission emergency run” in

N into gear without pressing the brake, this gear

white or red lettering or the warning “Transmis-

will start to “flash” and no power transmission is

sion temperature too high” is displayed on the

built up. To drive off, press the brake and move

on-board computer.

the selector lever from P or N into the required

Please see the chapter “REDUCED DRIVING

gear again.

PROGRAM” on Page 184.

Selector-lever position R or D is flashing

Have the fault repaired immediately at an

in the instrument cluster

authorized Porsche dealer.

Effects:

There is no power transmission.

The selector lever was engaged without

pressing the footbrake or only the restricted

driving programme is available when the

“Transmission emergency run” message

is displayed.

Indicator for selector lever position and

Action required:

engaged gear

Press the footbrake and engage the required

selector-lever position again by moving the

When the engine is running, the selector lever

selector lever from P or N.

position and engaged gear are indicated.

If reverse gear fails:

Please see the chapter “REDUCED DRIVING

If the selector lever is between two positions

PROGRAM” on Page 184.

- Effects:

The corresponding selector-lever position in

the instrument panel flashes and the warning

“Actuate brake” or “Selector lever not

engaged” appears on the on-board computer.

f Action required:

Operate the footbrake and engage the

selector lever properly.

Shifting Gears

179

D - Automatic selection mode

With a sporty driving style, downshifts are already

Selector lever positions

initiated when the brake pedal is touched lightly.

Select position D for “normal” driving. The gears

This further enhances a dynamic driving style.

P - Parking lock

are shifted automatically according to the acceler-

The PDK transmission temporarily changes to the

ator position and speed.

sportiest gear-changing map, i.e. to the highest

f Engage parking lock only when vehicle is

possible gear-changing points, if the accelerator

stationary.

Depending on the way the vehicle is driven

pedal is pressed quickly. The transmission accord-

If selector-lever position P is flashing in the

(economical, comfortable or sporty driving style)

ingly shifts down immediately by one or two gears

instrument cluster, the parking brake is not

and on the resistance (e.g. uphill), the gear-

(temporary change-down).

engaged. The vehicle can roll away.

changing points are shifted towards higher or

Engage selector-lever position P again by

lower engine-speed ranges.

The transmission no longer selects 7th gear at

moving the selector lever out of R.

The accelerator position, driving speed, engine

high driving speeds.

speed, longitudinal and lateral acceleration and

f Engage parking lock after applying the

the road profile all have an influence on the gear-

Sport mode

handbrake and release it before releasing the

changing characteristic.

(“Sport” and “Sport Plus” modes)

handbrake.

Unwanted upward shifts, e.g. before bends, are

“Sport” mode activated:

The ignition key can be withdrawn only in

prevented by swiftly releasing the accelerator

The PDK transmission switches to a sporty gear-

selector lever position P.

pedal.

changing map and shortens the gear shifting

times.

Depending on lateral acceleration, upward

R - Reverse gear

A sporty driving style is recognised more quickly

changes on bends are not made until the engine-

and the gear-changing speeds are adapted to

f Select only if car is stationary and the brake is

speed limit is reached.

driving performance.

applied.

Under braking, and depending on the amount of

Deceleration downshifts are commenced earlier.

deceleration, the PDK transmission changes down

Downshifts are already carried out in the case of

N - Neutral

earlier.

slight decelerations, even at higher engine

For subsequent cornering, the right gear is

speeds.

Selector lever position N must be selected for

engaged when pressure is applied to the brakes

towing or in car washes, for example.

before the bend. The bend is taken in the right

f Only select the desired position for driving off

gear, and when you accelerate out of the bend you

do not have to change down.

(D, M or R) when the engine is idling and the

brake pedal is depressed.

180 Shifting Gears

“Sport Plus” mode activated:

f Do not use Launch Control if there is a possibi-

3. Release the brake within a few seconds.

In “Sport Plus” mode, the PDK transmission

lity it could endanger other persons. Such a

changes to a shift program designed for driving

possibility exists if you cannot see that you

Remaining stationary for a long time with

on race circuits. 7th gear is not selected.

have a clear road with no possibility of cross

“Launch Control active” can lead to overload-

The gear-changing performance is enhanced

traffic in your intended direction of driving.

ing of the transmission.

significantly again compared with “Sport” mode.

In order to protect the transmission, the engine

power is then reduced and the “Launch Control

f Please see the chapter “SPORT MODE” on

Caution!

active” process is cancelled.

Page 61.

Stress on components increases dramatically

when starting with maximum acceleration in

Shifting gears on the steering wheel

Driving with Launch Control

comparison with normal driving off. Use of

With the shift buttons on the steering wheel, you

Driving with Launch Control allows you to achieve

Launch Control will inevitably reduce the life

can change temporarily from automatic selection

maximum acceleration from a standing start. It is

of the engaged engine and transmission

mode D to manual mode M.

intended to provide you with a unique enjoyment of

components.

your vehicle under controlled circumstances and

For example:

is not intended to be used in any location where it

Preconditions:

- Shifting down before bends and on entering

could be a nuisance to other persons.

built-up areas.

- Launch Control should only be used when the

Warning!

engine has reached operating temperature.

- Shifting down on downward slopes

(engine braking).

“Sport Plus” mode must be switched on (light-

There is a risk of endangering other road

users if you use this Control in an improper

emitting diode in button is on and “SPORT

- Shifting down for brief spurts of acceleration.

PLUS” is displayed on the on-board computer).

location or in a situation where other persons

Manual selection mode remains engaged:

might need to take evasive action due to the

1. Press the brake with your left foot.

rapid acceleration that this technology

- for cornering (depending on the lateral acceler-

permits.

2. Quickly press down the accelerator fully

ation) and overrunning,

(kickdown activated) and hold.

f Launch Control is designed to be used in a

- when the vehicle is stationary (e.g. at a

The engine speed will flatten out at around

controlled environment on closed circuit

junction).

6500 rpm.

driving courses where no vehicle cross traffic

“Launch Control active” is displayed on the

The system leaves manual selection mode:

or pedestrian traffic is present.

on-board computer.

- automatically after approx. 8 seconds (unless

f Use Launch Control only if conditions permit it

cornering or overrunning),

to be applied in a safe manner.

- after driving off.

181

Shifting Gears

Kickdown

The kickdown function is active in selector lever

positions D and M.

f For optimum acceleration, e.g. when

overtaking, depress the accelerator pedal

beyond the full-throttle point (kickdown).

The transmission shifts down depending on the

speed of travel and engine speed.

Upward shifts occur at the highest possible engine

speeds.

M - Manual selection mode

Shifting up +

f Press the PDK selector lever or shift button on

The currently selected gear is retained when you

the steering wheel forward.

change from D to M.

If you change from M to D, the gear-changing map

Shifting down -

suitable for your current driving style is selected

f Pull the PDK selector lever or shift button on

and the appropriate gear is selected.

the steering wheel back.

The selector lever and the two shift buttons in the

You can shift up or down by the corresponding

top steering wheel spokes allow you to comfort-

number of gears by quickly pressing or pulling the

ably and reliably select the seven forward gears.

shift buttons or selector lever several times in

succession.

The transmission can be shifted up or down by

several gears in succession by continuously

operating the selector lever or shift buttons.

182 Shifting Gears

Depending on driving speed and engine speed,

Failure of the selector lever display on the

Stopping

you can shift up or down at any time.

instrument cluster

f For a brief stop (e.g. at a traffic light), leave the

Gear changes which would exceed the upper or

The warning “Transmission emergency run” is

selector lever in drive position and hold the

lower engine speed limit are not executed by the

displayed in red on the on-board computer.

vehicle with the brake pedal.

controller.

Effect:

f Do not hold the car on a slope using the

There is no automatic upshift at the upper engine

No selector lever position is displayed on the

accelerator. Use the brake pedal or the

speed limit in selector lever position M. Upshift

instrument cluster.

handbrake instead.

suppression can be cancelled by kickdown opera-

Vehicle can be driven only until it comes to a

tion. If, for example, the engine speed limit is

stop.

f Before leaving the vehicle, always apply the

reached during overtaking and the automatic

Remedy:

handbrake and move the selector lever to

upshift does not occur, the transmission in this

It is not possible to continue driving. Immedi-

position P.

case shifts up as a result of kickdown operation.

ately stop the vehicle in a suitable place. Have

the vehicle towed to an authorized Porsche

f Select an appropriately low gear on upward

Parking

dealer.

and downward slopes.

Please see the chapter “TOWING” on

f Go easy on the accelerator!

This will ensure optimum use of engine power

Page 259.

and engine braking.

f When parking or manoeuvring in a small

space, control the speed by careful use of the

In order to shift up automatically at the upper

footbrake.

engine speed limit:

f Depress the accelerator pedal beyond the full-

Driving in winter

throttle point (kickdown).

In wintry road conditions it is advisable to take

steep inclines in manual mode. This prevents gear

changes occurring that could cause wheelspin.

Tow-starting, towing

f Please see the chapter “TOWING” on

Page 259.

Shifting Gears

183

Reduced driving program

Warning “Transmission emergency run” red

- Effect:

If there is a fault in the transmission

Vehicle can be driven only until it comes to a

- Depending on priority, the warning “Transmis-

stop.

sion emergency run” in white or red lettering or

Remedy:

the warning “Transmission temperature too

It is not possible to continue driving. Immedi-

high” is displayed on the on-board computer.

ately stop the vehicle in a suitable place. Have

the vehicle towed to an authorized Porsche

Warning “Transmission emergency run” white

dealer.

- Effects:

Warning “Transmission temperature too high”

Restricted gearshift comfort,

Reverse gear may not function.

- Effects:

“Warning jerks” can be felt when driving off and

Remedy:

the engine power may be restricted.

Have the fault repaired immediately at an

Remedy:

authorized Porsche dealer.

Do not hold the vehicle with the accelerator on

a hill, for example. Hold the vehicle with the

brake. Reduce engine load. If possible, stop

the vehicle in a suitable place. Allow the engine

to run in selector lever position P or N until the

warning disappears.

184 Shifting Gears

Maintenance, Car Care

Exercise Extreme Caution when Working

on your Vehicle

186

Coolant Level

187

Engine Oil

188

Engine Oil Level

189

Engine Oil Recommendation

190

Brake Fluid Level

192

Fuel Economy

194

Operating your Porsche in other Countries .. 194

Fuel Recommendations

196

Portable Fuel Containers

197

Fuel Evaporation Control

197

Emission Control System

198

How Emission Control Works

199

Washer Fluid

200

Power Steering

201

Air Filter

201

Combination Filter

201

Fluids/Oils for Manual Transmission

and Porsche Doppelkupplung (PDK)

201

Wiper Blades

202

Car Care Instructions

203

Maintenance, Car Care

185

In particular, be very careful to ensure that

Do not smoke or allow an open flame around

Exercise Extreme Caution when

items of clothing (ties, shirt, sleeves etc.),

the battery or fuel.

Working on your Vehicle

jewelry, long hair, hand or fingers cannot get

Keep a fire extinguisher in close reach.

caught in the engine-compartment blower, fan,

Danger!

Incomplete or improper servicing may cause

belts or other moving parts.

problems in the operation of the car. If in doubt

Ignoring the following instructions may

The radiator and radiator fans are in the front

about any servicing, have it done by your

cause serious personal injury or death.

of the car.

authorized Porsche dealer.

The engine-compartment blower is mounted in

The engine compartment of any motor vehicle

Improper maintenance during the warranty

the engine-compartment.

is a potentially hazardous area. If you are not

period may affect your Porsche warranty cov-

The fans can start or continue running as a

fully familiar with proper repair procedures, do

erage.

function of temperature, even with the engine

not attempt the adjustments described on the

switched off.

Supplies of fluids, e.g. engine oil, brake fluid or

following pages.

Carry out work in these areas only with the en-

coolant, are hazardous to your health.

This caution also applies to the entire vehicle.

gine off, the ignition switched off, and exercise

Keep these fluids out of children’s reach and

Only work on your vehicle outdoors or in a well

extreme caution.

dispose of them in accordance with the appro-

ventilated area.

priate regulations.

Your Porsche is equipped with an electronic ig-

Ensure that there are no open flames in the

nition system. When the ignition is on, high

Some countries require additional tools and

area of your vehicle at any time when fuel

voltage is present in all wires connected with

special spare parts to be carried in your vehi-

fumes might be present. Be especially cau-

the ignition system; therefore, exercise ex-

cle.

tious of such devices such as hot water heat-

treme caution when working on any part of the

Please make enquiries before driving abroad.

ers which ignite a flame intermittently.

engine while the ignition is on or the engine is

running.

Before working on any part in the engine com-

partment, turn the engine off and let it cool

Always support your car with safety stands if it

down sufficiently. Hot engine compartment

is necessary to work under the car.

components can burn skin on contact.

When working under the car without safety

Be alert and cautious around engine at all

stands but with the wheels on the ground,

times while the engine is running.

make sure the car is on level ground, the

If work has to be performed with the engine

wheels are blocked, and that the engine

running, always set the parking brake, and

cannot be started.

make sure the shift lever is in neutral position

Remove the ignition key.

or the PDK selector lever in position P or N.

186 Maintenance, Car Care

Coolant Level

Topping off coolant

f Please see the chapter “EXERCISE EXTREME

Warning!

CAUTION WHEN WORKING ON YOUR VEHICLE”

Danger of serious personal injury or death

on Page 186.

from scalding. Coolant is hazardous to your

The cooling system is filled at the factory with a

health, and may be fatal if swallowed.

permanent coolant.

f Do not open the cap of the expansion tank

It provides year-round protection from corrosion

while the engine is hot.

and freezing down to -31 °F/-35 °C.

f Allow the engine to cool down before opening

f Only use antifreeze authorized by Porsche.

the cap and protect your hands, arms and face

from any possible escape of hot coolant.

Checking coolant level

f Keep coolant out of children’s reach.

The expansion tank with its filler orifice is located

f Also, keep coolant away from your pets.

in the rear luggage compartment under the serv-

They can be attracted to it should there be a

ice flap.

spill, or to used coolant left in an open contai-

f Check the coolant level regularly.

ner. Coolant can be deadly to pets if consu-

Press catch button on the service flap and

med.

When the engine is cold and the car is level the

open flap.

fluid level must lie between the “MIN” and “MAX”

Risk of damage from overflowing coolant.

Cover the expansion tank cap with a thick rag.

markings.

f Take care while topping off coolant not to soil

Open cap slowly and carefully and allow over-

the luggage compartment or items of luggage.

pressure to escape.

Then unscrew cap completely.

1. Switch engine off and let it cool.

Only add a mixture of antifreeze and water in

Please see the chapter “COOLING SYSTEM” on

equal parts, and do not exceed the ”Max.“

Page 88.

mark.

Antifreeze in coolant:

50% gives protection down to -31 °F/-35 °C

60% gives protection down to -58 °F/-50 °C

Screw cap firmly on.

Close service flap.

Maintenance, Car Care

187

If in an emergency pure water has been added, the

Engine-compartment blower,

Engine Oil

mix ratio must be corrected at an authorized

radiator fan

Porsche dealer.

It is important to perform oil changes regularly in

The radiator and radiator fans are in the front of

accordance with the intervals specified in the

Marked loss of coolant indicates leakage in the

the car.

“Maintenance” booklet.

cooling system.

The engine-compartment blower is mounted in the

The cause should immediately be remedied at an

engine compartment.

Engine oil consumption

authorized Porsche dealer.

It is normal for your engine to consume oil.

Warning!

The rate of oil consumption depends on the quality

and viscosity of oil, the speed at which the engine

Risk of injury.

is operated, the climate, road conditions as well

After the engine is switched off, the engine-

as the amount of dilution and oxidation of the

compartment temperature is monitored for

lubricant.

approx. 30 minutes.

During this period, and depending on tem-

If the vehicle is used for repeated short trips, and

perature, the engine-compartment blower

consumes a normal amount of oil, the engine oil

may continue to run or start to run.

measurement may not show any drop in the oil

level at all, even after 600 miles (1,000 km) or

f Carry out work in these areas only with the en-

more. This is because the oil is gradually becom-

gine off, the ignition off, and exercise extreme

ing diluted with fuel or moisture, making it appear

caution.

that the oil level has not changed.

Risk of injury. The radiator fans in the front

The diluting ingredients evaporate out when the

end of the car may be operating or

vehicle is driven at high speeds, as on an express-

unexpectedly start operating when the

way, making it then appear that oil is excessively

engine is switched on.

consumed after driving at high speeds.

f Carry out work in these areas only with the en-

If the conditions you drive your vehicle in are

gine switched off.

dusty, humid, or hot, the frequency of the oil

change intervals should be greater.

188 Maintenance, Car Care

If the vehicle is driven at a high rate of speed,

Topping off engine oil

climatic conditions are warm, and the load is high,

the oil should be checked more frequently, as

Warning!

driving conditions will determine the rate of oil

Engine oil is hazardous to your health and

consumption.

may be fatal if swallowed.

- The engine in your vehicle depends on oil to

f Keep engine oil out of children’s reach.

lubricate and cool all of its moving parts.

Therefore, the engine oil should be checked

Used engine oil contains chemicals that have

regularly and kept at the required level.

caused cancer in laboratory animals.

- Make it a habit to have the engine oil level

f Always protect your skin by washing thorough-

checked at every fuel filling.

ly with soap and water.

- The oil pressure warning light is not an oil level

indicator.

Caution!

The oil pressure warning light indicates serious

Risk of damage from overflowing engine oil.

engine damage may be occuring when lit, if en-

gine rpm is above idle speed.

f Take care while checking and topping up

engine oil not to soil the luggage compartment

Press catch button on the service flap and

Engine Oil Level

or items of luggage.

open flap.

f Please see the chapter “EXERCISE EXTREME

Unscrew the oil filler cap.

CAUTION WHEN WORKING ON YOUR VEHICLE”

Note

on Page 186.

Add at most 0.5 quarts (0.5 liter) of engine oil

The Check Engine warning light may light up if the

at a time.

f Regularly check the oil level using the on-board

cap of the oil filler opening is opened while the

Never add more engine oil than required

computer after the vehicle is refuelled.

engine is running.

to reach the max. mark.

Please see the chapter “OIL DISPLAY AND

The oil inlet opening is located in the rear luggage

MEASUREMENT OF THE ENGINE OIL LEVEL”

Close oil filler cap until you feel it reach its end

compartment under the service flap.

on Page 161.

position.

1. Measure the oil level and read off the required

The difference between the minimum and maxi-

Measure oil level again with the on-board

top-up quantity on the on-board computer.

mum marks on the segment display is approx.

computer. Switch off the engine.

1.3 quarts (1.25 liters).

2. Switch off the engine.

If necessary, repeat the process and add more

Each segment of the display corresponds to ap-

engine oil as required.

prox. 0.42 quart (0.4 liter).

Maintenance, Car Care

189

Always observe the following points:

Oil change

Engine Oil Recommendation

- Use engine oils approved by Porsche only. This

Porsche recommends

The engine oil has to be changed regularly at the

is a precondition for optimum and problem-free

intervals listed in your Maintenance Schedule.

The right oil for your vehicle.

operation of your vehicle.

f Please see the chapter “CAPACITIES” on

Complies with

Viscosity class²⁾

- Regular oil changes are part of servicing.

Page 271.

approval¹⁾

It is important that the service intervals,

particularly the oil change intervals, are

We recommend that you have the engine oil

Porsche A40

SAE 0W - 40³⁾

observed in accordance with the specifications

changed at your Porsche dealer, who has the re-

SAE 5W - 40⁴⁾

in the “Maintenance” booklet.

quired oils and the necessary filling equipment.

SAE 5W - 50⁴⁾

- Oils approved by Porsche can be mixed with

If you suspect an oil leak in the engine have your

¹⁾Generally, you can find details of the

each other.

dealer check it out immediately.

manufacturer approvals on the oil containers or as

- Porsche engines are designed so that no oil

All current engine oils are compatible with each

a notice displayed by the retailer.

additives may be used.

other, i.e. when making an oil change it is not nec-

The current approval status is also available from

essary to flush the engine if you wish to use a dif-

your Porsche partner.

- A label is located in the engine compartment,

ferent brand or grade of oil.

which provides you with information on suitable

²⁾SAE viscosity class - Example: SAE 0W - 40

Since, however, each brand of oil has a special

oil for your engine.

Specification 0W = Viscosity specification for

composition, you should, if possible, use the

low temperatures (winter).

Your Porsche partner will be pleased to

same oil brand if it becomes necessary to top up

Specification 40 = Viscosity specification for

advise you.

between oil changes.

high temperatures.

Porsche engines have long intervals between oil

³⁾ For all temperature ranges.

changes. You can make best use of these long oil

change intervals by using multigrade oils since

⁴⁾ For the temperature range over --13 °F (--25 °C).

these are largely independent of seasonal fluctua-

tions in temperature.

190 Maintenance, Car Care

If your vehicle is used frequently in stop-and-go

Viscosity

traffic in cold weather, the engine will not always

be properly warmed up.

Like all liquids, engine oil is viscous when cold,

Condensation from products of combustion may

and thin-bodied when warm. The viscosity of an oil

accumulate in the oil. In this case, it is advisable

is expressed by its SAE class. For cold viscosity

to change the oil more frequently so that your en-

(measured at temperatures below 32 °F/0 °C) the

gine once again has 100% efficient engine oil.

SAE class is given as a number and the letter “W”

(as in winter), for hot viscosity (measured at

212 °F/100 °C) the SAE class is given only as a

Engine oil performance class

number.

Engine oil is not only a lubricant, but also serves

The viscosity of an oil is, therefore, always the

to keep the engine clean, to neutralize the dirt

same if it has the same number of an SAE class.

which penetrates into the engine through combus-

tion and to protect the engine against corrosion.

Oils with two viscosities are called multigrade oils;

To perform these functions, the oil is provided with

oils with only one viscosity are termed single-

additives which have been specially developed for

grade oils.

these functions.

Single-grade oils can not be used in your engine.

The efficiency of an oil is expressed, for example,

by the API, ILSAC or ACEA classifications.

The viscosity of the engine oil for your Porsche

has to be chosen according to the ambient tem-

perature given in the engine oil recommendation

table.

Maintenance, Car Care

191

Brake Fluid Level

f Please see the chapter “EXERCISE EXTREME

CAUTION WHEN WORKING ON YOUR VEHICLE”

on Page 186.

f Use only new (unused) Original Porsche

brake fluid.

Warning!

Brake fluid is hazardous to your health, and

may be fatal if swallowed.

Brake fluid also attacks paintwork.

f Keep brake fluid out of children’s reach.

f Take care while topping off brake fluid not to

soil the luggage compartment or items of lug-

gage.

A slight decrease in the fluid level due to wear and

Checking the brake fluid level

automatic readjustment of the disc brakes is

The reservoir for the hydraulic braking and clutch

normal.

systems is located in the luggage compartment.

If, however, the fluid level falls markedly or below

the minimum mark, the braking system may have

1. Open and remove cover flap A.

developed a leak.

2. Regularly check the brake-fluid level on the

f Have the brake system checked without delay

transparent expansion tank through the

at an authorized Porsche dealer.

window B.

The fluid level should always lie between the

minimum and maximum marks.

192 Maintenance, Car Care

Changing the brake fluid

Warning light USA

Brake fluid absorbs moisture from the air over

time. This accumulation of water lowers the boil-

Warning light Canada

ing point and, under certain operating conditions,

can affect the braking performance.

- The warning lights on the instrument panel and

Therefore have the brake fluid changed in accord-

on the on-board computer indicate an insuffi-

ance with the change intervals stated in the

cient brake fluid level.

brochure “Maintenance”.

- If the warning light lights up on the instrument

panel and the warning message appears on

the on-board computer in combination with a

larger pedal travel, a brake circuit may have

failed.

If the warning lights should light up when

driving:

f Stop immediately in a suitable place.

f Do not continue driving.

Consult an authorized Porsche dealer.

Maintenance, Car Care

193

f Any additional weight carried in the vehicle re-

Fuel Economy

Operating your Porsche in other

duces fuel economy. Always keep cargo to a

Countries

Fuel economy will vary depending on where,

minimum and remove all unnecessary items.

when and how you drive, optional equipment

Government regulations in the United States and

f Organize your trips to take in several errands

installed, and the general condition of your

Canada require that automobiles meet specific

in one trip.

car.

emission regulations and safety standards. There-

A car tuned to specifications and correctly

f All electrical accessories contribute to in-

fore, cars built for the U.S. and Canada differ from

maintained, will help you to achieve optimal

creased fuel consumption.

vehicles sold in other countries.

fuel economy.

f Only switch on the air conditioning when neces-

If you plan to take your Porsche outside the conti-

Have your vehicle tuned to specifications.

sary.

nental limits of the United States or Canada, there

Air cleaner should be dirt free to allow proper

is the possibility that

f Do not drive with the Roof Transport System

engine “breathing”.

mounted unless you need it.

- unleaded fuel may not be available;

Battery should be fully charged.

Wheels should be properly aligned.

The EPA estimated mpg. is to be used for

- unleaded fuel may have a considerably lower

Tires should be inflated at correct pressure.

comparison purposes, actual mileage may

octane rating. Excessive engine knock and se-

be different from the estimated mpg.,

rious damage to both engine and catalytic con-

Always monitor your fuel consumption.

depending on your driving speed, weather

verters could result;

Drive smoothly, avoid abrupt changes in speed

conditions and trip length. Your actual

- service may be inadequate due to lack of prop-

as much as possible.

highway mileage will probably be less than

er service facilities, tools or diagnostic equip-

the estimated mpg.

Avoid jack rabbit starts and sudden stops.

ment;

Do not drive longer than necessary in the lower

f Please observe all local and national speed

- replacement parts may not be available or very

limits.

gears. Shifting into a higher gear early without

difficult to get.

lugging the engine will help save fuel.

Porsche cannot be responsible for the

Prolonged “warm up” idling wastes gas. Start

mechanical damage that could result

the vehicle just before you are ready to drive.

because of inadequate fuel, service or parts

Accelerate slowly and smoothly.

availability.

Switch off the engine if stationary for longer

If you purchased your Porsche abroad and want to

periods.

bring it back home, be sure to find out about ship-

ping and forwarding requirements, as well as cur-

rent import and customs regulations.

194 Maintenance, Car Care

Fuel

Warning!

Fuel is highly flammable and harmful to

health.

f Fire, open flame and smoking are prohibited

when handling fuel.

f Avoid contact with skin or clothing.

f Do not inhale fuel vapors.

To prevent damage to the emission control

system and engine:

f Never drive the tank completely out of fuel.

f Avoid high cornering speeds after the warning

lights have come on.

- refueling with engine running.

If there is a defect in the automatic unlocking

f Please see the chapter “FUEL ECONOMY” on

system:

Page 194.

Opening the filler flap

f Open the passenger door.

Please see the chapter “EMISSION CONTROL

SYSTEM” on Page 198.

f Pull the ring in the right-hand door aperture

The filler opening is under the filler flap in the front

Please see the chapter “LEVEL GAGE” on

(arrow).

right fender.

Page 130.

f With the vehicle unlocked, press on the front

Check engine warning light

part of the filler flap (arrow) to open the flap.

If the warning lights in the instrument panel and on-

The filler flap is centrally locked along with the oth-

board computer come on and remain on while

er locks.

driving, it suggests:

- a potential engine control problem and the

need for system service or

– an improperly fastened tank cap or

Maintenance, Car Care

195

Porsche Cayman (2010 year). Manual - part 11